| 单词 | tufa |
| 例句 | In these Etruscan travel essays, pages and pages of descriptions and interpretations are devoted to what he finds inside the tombs, including porches, columns, household items made out of stone and tufa beds. A case for D.H. Lawrence as a father of modern travel writing 2021-09-02T04:00:00Z But today, just to stand beside the small tufa niche where a Jewish child was laid to rest 2,000 years ago feels like a kind of prayer. Rome, Sacred Ground for Nearly 3,000 Years, and Counting 2023-05-01T04:00:00Z With its parapets, ceramic tile roofs and multitiered buildings perched on layers of red volcanic tufa stone, Pitigliano resembles a sparkling, pint-size Holy City. Cultured Traveler: A ‘Little Jerusalem’ in the Heart of Italy 2012-11-22T18:40:22Z Ms. Choucair worked in a variety of materials, including wood, aluminum, brass, terra cotta and tufa stone, with a pared-down elegance and sensuous touch that sometimes recalled Brancusi. Saloua Raouda Choucair, Early Exponent of Abstract Arabian Art, Dies at 100 2017-02-17T05:00:00Z At night the Square, with its monumental rosy tufa stone buildings, is lit up; the fountains spew through colored lights, music plays, people dance. My Armenia 2018-08-20T04:00:00Z As Chips writes, tufa is a type of porous limestone rock that creates a habitat for alpine and other rock garden plants. These faux-stone pots make for the perfect spring project 2019-03-25T04:00:00Z Mono is a million years old, one of North America’s oldest lakes, a sci-fi landscape of calcium carbonate tufa towers, more than twice as salty as the sea itself, and eerie-looking empty or full. Cities’ thirst nearly killed these California lakes. Not so fast, said our epic wet winter 2023-07-25T04:00:00Z The lake and its surroundings were protected as parkland in large part to preserve the lake’s tufa towers — knobby limestone spires that rise high above the water’s surface and make for a wonderfully Seussian sight. Five State Parks to Visit This Summer 2023-06-29T04:00:00Z “Several horses died at South Tufa over the winter and their scavenged carcasses were draped between tufa towers and along the lakeshore.” Wild horses spent the harsh winter at Mono Lake. Now they're turning up dead 2023-05-19T04:00:00Z A close look at the rock reveals coral-like tufa deposits left by that phantom lake. Surfing in the desert? A developer’s plan for a surf lagoon sparks outrage 2022-09-19T04:00:00Z Now exposed in dry valleys, this porous tufa was a natural insulation used by pioneers to build their homes with a natural protection against summer heat and winter cold. An Introduction to Geology 2017-01-01T00:00:00Z The eerie tufa towers and migratory birds of Mono Lake. Winter in Mammoth is great, but summer is when it shines 2022-07-01T04:00:00Z The implications stretch from Owens Lake north to Mono Lake, the high-desert water body east of Yosemite National Park best known for its cragged and towering tufa formations. Judge rules against Los Angeles in Long Valley irrigation fight 2021-03-15T04:00:00Z Given its eastern location, this could be a great last hike before exiting the park, and is easily combined with a visit to Mono Lake and its otherworldly tufa formations. Disturbing the peace? 5 hikes to avoid Yosemite crowds 2019-11-25T05:00:00Z The marshrutka weaves through Republic Square, which is encircled by elegant 20th-Century government buildings and museums built from pink volcanic tufa stone. The country breeding a generation of chess whizz kids 2018-02-17T05:00:00Z Waterfalls downstream of springs often precipitate tufa as the turbulent water enhances the degassing of carbon dioxide, which makes calcite less soluble and causes it to precipitate. An Introduction to Geology 2017-01-01T00:00:00Z Most people visit Mono Lake in California for the Dr. Seuss-esque towers called tufas. The Scuba Diving Flies of California’s Mono Lake 2017-11-21T05:00:00Z The lake’s famous tufa formations — for so long a symbol of California’s lack of water — were capped with snow. Weeks of rain are rapidly reviving California's drought-ravaged lakes 2017-01-11T05:00:00Z “The Foreau has ripe fruit, but is dry and refreshing with a mineral character from those chalky, tufa soils.” L.A. sommeliers share their favorite Champagne and sparkling wines for New Year's Eve 2016-12-28T05:00:00Z I blame the city, its somber tufa buildings. Voices from the Past 2012-04-19T02:00:30.787Z In salty Mono Lake in California, tufa towers were exposed after water was diverted and lowered the lake levels. An Introduction to Geology 2017-01-01T00:00:00Z It walks along the tufa without becoming too buoyant by clinging on with elongated claws. The Scuba Diving Flies of California’s Mono Lake 2017-11-21T05:00:00Z Entirely composed of tufa, its sides, now concealed by buildings or by the accumulated rubbish of ages, were abrupt and precipitous, as are still the sides of the neighbouring citadels of Corneto and Cervetri. Walks in Rome 2012-03-31T02:00:36.010Z From the House of the Surgeon it is but a little way to that of Sallust, a larger residence, and one of later date, when tufa had displaced limestone as a building material. Naples Past and Present 2012-03-13T02:00:23.473Z In the upper layers of the tufa we find far better pottery decorated in the Phenician style. The History of Antiquity, Vol. II (of VI) 2012-03-01T03:00:28.903Z The treasury was raised on a quadrangular structure, supported on its south side by the Hellenico, and built of tufa. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 10 "David, St" to "Demidov" 2012-02-17T03:00:33.923Z It has been discovered in almost limitless quantities in conjunction with tufa and h�matite; and the most delicate persons may inhale its fumes with perfect safety. Punch, or the London Charivari, Vol. 62, Feb 3, 1872 2012-02-10T03:00:16.947Z The lower prison, called Robur, is constructed of huge blocks of tufa, fastened together by cramps of iron and approaching horizontally to a common centre in the roof. Walks in Rome 2012-03-31T02:00:36.010Z The vegetation is extraordinarily rich; as well it may be, for the limestone mountain is overlaid with volcanic tufa for full half its height—though Heaven only knows where the tufa came from. Naples Past and Present 2012-03-13T02:00:23.473Z Remains of fortifications of all ages run round the edge of the hill; some of the original Greek work, in finely hewn rectangular tufa blocks, exists on the east. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z Tufa, tū′fa, n. a variety of calcium carbonate usually deposited from springs—calcareous tufa; the word was formerly used as synonymous with tuff.—adj. Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) 2012-01-30T03:00:19.113Z At Gympie, the auriferous area is confined to veins traversing a crystalline diorite, or within a certain limit of its boundary, marked by the presence of fossiliferous diabase tufas. Early Days in North Queensland 2012-01-24T03:00:29.987Z From hence we can look down upon some grand walls of republican times, formed of huge tufa blocks. Walks in Rome 2012-03-31T02:00:36.010Z That wall is tufa; it is no part of the structure. Naples Past and Present 2012-03-13T02:00:23.473Z These subterranean galleries, cut in the soft tufa, extend for miles under the present city: branching out in all directions they form a veritable labyrinth of secret passages. The Story of Assisi 2012-01-14T03:00:18.710Z Hunting however was not our object, but the succession of chasms, 100 feet deep, worn through the soft pumice and trachytic tufas by the action of the Tji-Lanang and its little tributary streams. Narrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume II (Commodore B. Von Wullerstorf-Urbair,) Undertaken by Order of the Imperial Government in the Years 1857, 1858, & 1859, Under the Immediate Auspices of His I. and R. Highness the Archduke Ferdinand Maximilian, Commander-In-Chief of the Austrian Navy. 2012-01-03T03:00:07.630Z At various points there appeared, as at St. Paul, between the tufa strata, black veins of basalt, and fragments of scori�, lying upon reddish-brown slag. Narrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume I (Commodore B. Von Wullerstorf-Urbair,) Undertaken by Order of the Imperial Government in the Years 1857, 1858, & 1859, Under the Immediate Auspices of His I. and R. Highness the Archduke Ferdinand Maximilian, Commander-In-Chief of the Austrian Navy. 2012-01-02T03:00:25.873Z Behind S. Teodoro are remains of an early concrete wall, behind which the tufa rock is visible. Walks in Rome 2012-03-31T02:00:36.010Z It is because they were possible only in the tufa formation. From the Oak to the Olive A Plain record of a Pleasant Journey 2011-11-26T03:00:12.337Z Our mountains," said the administrators of the province of the Lower Alps in 1792, "present nothing but a surface of stony tufa; clearing is still going on, and the little rivulets are becoming torrents. Man and Nature or, Physical Geography as Modified by Human Action 2011-11-11T03:00:34.027Z Sand, clay, tufa, with beds of peat and gravel, are the components of the soil which is found filling up the declivities of mountains, covering low-lands and sea-beaches in this part of the island. Alone with the Hairy Ainu or, 3,800 miles on a pack saddle in Yezo and a cruise to the Kurile Islands. 2011-10-30T02:00:10.270Z It is a gateway hewn out of the solid tufa and built across a very narrow natural gorge. Cathedral Cities of Italy 2011-10-12T02:00:42.597Z Keeping to the valley, on our right are now some huge blocks of tufa, of great interest as part of the ancient Roma Quadrata, anterior to Romulus. Walks in Rome 2012-03-31T02:00:36.010Z We found in several places the image of the seven-branched candlestick impressed upon the tufa. From the Oak to the Olive A Plain record of a Pleasant Journey 2011-11-26T03:00:12.337Z This was replaced in the middle of the first century b.c. by tufa blocks cut in squares and set diagonally giving the appearance of a network and hence known as opus reticulatum. Rome 2011-07-24T02:00:10.227Z They are constructed of rectangular blocks of tufa two Roman ft. in height; the walls themselves reach in places a height of 56 ft. and are 7 to 9 ft. thick. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 2 "Fairbanks, Erastus" to "Fens" 2011-06-19T02:00:16.580Z The two flat members of the Moorish arches are decorated with black tufa lozenges and spearheads. Cathedral Cities of Italy 2011-10-12T02:00:42.597Z The two horses' heads in this room, in nenfro, i.e. volcanic tufa, were found at the entrance of a tomb at Vulci. Walks in Rome 2012-03-31T02:00:36.010Z In the narrow descent that led to it Mr. Wood showed me in three consecutive strata the tufa of the time of the kingdom, travertine of the republic, and brick of the empire. From the Oak to the Olive A Plain record of a Pleasant Journey 2011-11-26T03:00:12.337Z The earliest facing, of the first and second century b.c., was of irregular blocks of tufa set in cement, and is known as the opus incertum. Rome 2011-07-24T02:00:10.227Z Under certain conditions calcium carbonate is concentrated at or near the earth's surface by chemical agencies, as about springs where calcareous tufa, travertine, etc., are precipitated, and in caverns where stalactites and stalagmites are formed. North America 2011-05-05T02:00:20.027Z The dull yellow tufa with which it is faced and the embattled cornice and buttresses give it a decidedly eastern appearance. Cathedral Cities of Italy 2011-10-12T02:00:42.597Z The wall is only built where the tufa is of a soft character. Walks in Rome 2012-03-31T02:00:36.010Z The various decomposing volcanic rocks—tufas, conglomerates and basalts—mingled with decayed vegetable matter, and abundantly watered, form a very fertile soil. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 3 "Fenton, Edward" to "Finistere" 2011-03-14T03:01:00.580Z The volcanic tufa used by the earliest Roman builders was discarded gradually in favour of better materials. Rome 2011-07-24T02:00:10.227Z As much may be inferred from the exact resemblance of this matter, or tufa, which immediately covers Herculaneum, to all the tufas of which the high grounds of Naples and its neighbourhood are composed. Observations on Mount Vesuvius, Mount Etna, and Other Volcanos 2011-03-02T03:00:27.050Z This is the origin of the mineral called travertine or calcareous tufa, which is so commonly met with on the margins of springs, rivers, and waterfalls. Geology 2011-02-20T03:00:12.660Z The whole prison is constructed of huge blocks of tufa without cement. Walks in Rome 2012-03-31T02:00:36.010Z Here he found a little soil covering a limelike tufa deposit. The World and Its People: Book VII Views in Africa 2011-02-13T03:00:17.920Z Here it is defended by a fine wall of opus quadratum of tufa, in alternate courses of headers and stretchers. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5 "Arculf" to "Armour, Philip" Except this rock, which is evidently lava and full of vitrifications like that of Vesuvius, all the rocks upon the coast of Ba�a are of tufa. Observations on Mount Vesuvius, Mount Etna, and Other Volcanos 2011-03-02T03:00:27.050Z It is described by a popular writer of that period as being "nothing better than a shelterless rock of soft sandstone called tufa." The Story of Malta It was defended by a deep ditch, which can still be traced, and by walls, a portion of which, on the eastern side, constructed of rectangular blocks of tufa, was brought to light in 1897. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" This bed of tufa in the Zambesi region is more or less hardened, according to the exposure it has had to atmospheric changes. The World and Its People: Book VII Views in Africa 2011-02-13T03:00:17.920Z The houses are massive and well built of a soft volcanic tufa, and with their courtyards and gardens climbing up the hillsides afford a striking picture. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" High grounds, probably sections of cones of ancient Volcanos, being all composed of tufa and strata of loose pumice and burnt matter.60. Observations on Mount Vesuvius, Mount Etna, and Other Volcanos 2011-03-02T03:00:27.050Z Generally speaking, they are only of local importance, their cheapness depending largely on the nearness and abundance of some suitable volcanic deposit of the trass or tufa class. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" To adapt the ground for its purpose as a cemetery, a gallery was run all round the area in the tufa rock at a convenient depth below the surface, reached by staircases at the corners. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" These consist of pits sunk through decomposed rocks of volcanic origin until a layer of tufa, limestone, and clay is reached. The World and Its People: Book VII Views in Africa 2011-02-13T03:00:17.920Z But if no calcareous matter be supplied by waters flowing from the surrounding high grounds, or by springs, no tufa or shell-marl are formed. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology This account, with other circumstances mentioned in this letter, make it highly probable, that all the tufas in the neighbourhood of Vesuvius have been formed by a like operation. Observations on Mount Vesuvius, Mount Etna, and Other Volcanos 2011-03-02T03:00:27.050Z The vaults were all built in tufa with horizontal courses in brick and cement. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" The granular tufa is useless for either purpose, containing too much earth to be employed in making mortar, and being far too soft to be used as stone for building. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" The whole of the vast area drained by the Zambesi system is covered with a bed of tufa, which is a soft, porous stone formed by deposits from water. The World and Its People: Book VII Views in Africa 2011-02-13T03:00:17.920Z A rock with the texture of tuff, or tufa, which see. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Acting as our guide, he pointed out to us the burial-places of martyrs, distinguished by the outline of a palm rudely impressed on the tufa out of which the various graves have been hollowed. Reminiscences, 1819-1899 Between the roof and the vault there is a curious chamber which reminds one of the crater of a volcano, and the 141impression is increased by the sponge-like stone, which has some resemblance to tufa. Bell's Cathedrals: The Cathedral Church of Wells A Description of Its Fabric and a Brief History of the Episcopal See Some of the subterranean chambers contain armed seats and benches cut out of the tufa rock. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" At the end of the house is a pretty verdant nook where Cypripedium insigne is planted out upon banks of tufa among Adiantums and overshadowing palms. The Woodlands Orchids They were imbedded in alluvial mud, of the solidity of calcareous tufa, and containing some flint pebbles and fragments of the limestone of the country. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The majority of the edifices in the City of Mexico are built of volcanic tufa, said to have been formed by the small volcanoes which lie at the southeast of the valley of Mexico. The Fundamental Principles of Old and New World Civilizations Mr. Darwin collected some masses of tufa which were found to be mainly organic, containing, besides remains of fresh-water infusoria, the siliceous tissue of plants! Island Life Or the Phenomena and Causes of Insular Faunas and Floras To right and to left for a height of 500 feet the face of the yellow tufa precipice is literally pitted with the windows and doors of the Stone Age City. Through Our Unknown Southwest A broad stand down the middle, accommodating five rows of Cypripediums on either side, has all its substructures masked with tufa, which bears a mantle of green. The Woodlands Orchids It is composed chiefly of indurated tufa like Monte Nuovo, stratified conformably to its conical surface. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The hills I like are made of old-fashioned stuff, not young upstart tufa and sandstone that was not thought of when the Laurentians were built. The So-called Human Race Calcareous tufa or travertine occurs in the valley of Matlock and elsewhere, and in some places is still being deposited by springs. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" Up in the Frijoles cave dwellings, they have dug out of the tufa dust of ten centuries bodies swathed in woven cloth; but these bodies are of a modern race five or six feet tall. Through Our Unknown Southwest Now they are grand plants, in the way to become ‘specimens,’ set among ferns and creepers on a lofty wall of tufa, the base of which is clothed with Tradescantia and Ficus repens. The Woodlands Orchids In the tufaceous strata, wood is seen converted into a light tufa. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology His father’s house has perished, it is true, through “Nature’s changing force untrimmed,” for the greedy waves have undermined and swallowed up the tufa cliff which once supported the old Tasso villa. The Naples Riviera It is carved from a piece of vesicular basaltic tufa and is in a perfect state of preservation. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 But he mentioned, with evident pride, that he differed from all the scientific people who had visited the spot; and he flung about such words as “tufa” and “silica” with careless freedom. The Works of Robert Louis Stevenson - Swanston Edition Vol. 2 (of 25) On the left is a ‘rockery’ of tufa, planted with the hybrid Anthuriums which Messrs. Sander have been producing so industriously of late years. The Woodlands Orchids The plants incrusted with the latter substance have much the same appearance as those incrusted with calcareous tufa in our own country. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology He stared angrily at the floor of ash, at the black, outcropping masses of tufa. Two Thousand Miles Below All are made of compact, dark, volcanic tufa that resembles very closely a fine grained slate. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 It establishes its burrow in a soft tufa, and directs it almost horizontally, hollowing it out in such a way that the axis of the hole makes a very small angle with the soil. The Industries of Animals For this plant was deadly sick last year, beyond hope of recovery; as an experiment Mr. Coles set it on the tufa, wired down, and forthwith it began to pick up strength. The Woodlands Orchids A portion of it also below the village of San Vignone consists of incrustations of long vegetable tubes, and may be called tufa. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The doctor noticed all this as he followed Hatteras; his foot sank into a volcanic tufa, and the deposits of ashes, volcanic stones, etc., like the syenite and granite of Iceland. The Voyages and Adventures of Captain Hatteras The rock is a dark slaty looking tufa, the surface of which displays ring or rosette-like markings, reminding one of the polished surface of a section of fossil coral. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 At one of these, between the gates Pia and Salara, they speedily effected a breach in an old wall about two feet in thickness, and built of bricks and tufa. Pius IX. And His Time Every species perhaps—every one that I have observed, at least—grows more strongly when placed in a niche, of size appropriate, on a block of tufa. The Woodlands Orchids On the sides of the deep chasm into which the cascade throws itself, there is seen an extraordinary accumulation of horizontal beds of tufa and travertin, from four to five hundred feet in thickness. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Riccardo let out the rope a little more, and Lorenzo's boot sole scraped loudly against the crumbling tufa surface, releasing a shower of pebbles. The Saracen: The Holy War Large partially polished celt of mottled volcanic tufa—½. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 They stood inside a high wall of cream-colored tufa, the same rock on which Orvieto stood. The Saracen: Land of the Infidel Cacti and yuccas and agaves, white with dust, clung to the naked tufa. The Woodlands Orchids These were exhumed from a stratum of volcanic tufa, claimed to be of Tertiary age, but perhaps Quaternary, and lay at a depth of some forty feet beneath the surface. Man And His Ancestor A Study In Evolution It is cut out of the tufa rock, and was no doubt used by that people for festal representations long before Rome attempted anything of the kind. Museum of Antiquity A Description of Ancient Life It also is made of the dark tufa, very fine grained and compact, resembling slate. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 He turned and stared back at the mansion, a great cream-colored cube of the same tufa as the rock on which Orvieto stood. The Saracen: Land of the Infidel This white, chalky soil, M. La Tour had explained to us, is hard, much like the tufa used so much for building in Italy. In Château Land It consists of "several chambers excavated in the tufa." The Works of Lord Byron. Vol. 2 Sometimes there are different layers of sand at different levels, and in some cases there may be two sand-pit roads one over the other, with the bed of hard tufa between them. Museum of Antiquity A Description of Ancient Life Celt of hexagonal section made of dark compact tufa—½. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 Most of the churches and palaces and houses of Orvieto were also built of tufa. The Saracen: Land of the Infidel Three of these recumbent figures are of colossal size, hewn out of the tufa rock and painted. In Château Land They were of hard concrete, from 4 to 5 feet deep and wide, and still carried fragments of the walls, about 2 feet 4 inches wide, of tufa, sarsen, and Roman brick. Bell's Cathedrals: The Cathedral Church of Rochester A Description of its Fabric and a Brief History of the Episcopal See The tufa lithoide and the pozzolana were thus alone used for building purposes by the Romans, and the catacombs are never found excavated in these. Museum of Antiquity A Description of Ancient Life Flaked and partially polished celt of dark tufa—½. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 This was a fearsome place, thought Daoud as he gazed around the underground chamber hewn out of the yellow tufa on which the building stood. The Saracen: Land of the Infidel All the upper part of the mountain is composed of a pumiceous tufa, rich in sanidine and of a characteristic greenish colour. A Study of Recent Earthquakes It was built by the Romans, of very strong material, tufa, concrete, and red-tile brick. Grace Darling Heroine of the Farne Islands The catacombs were hewn only in the tufa granolare, and were consequently excavated expressly for burials by the early Christians. Museum of Antiquity A Description of Ancient Life The material is a very dark, compact, fine grained tufa. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 The road that wound down past the gray-yellow folds of tufa was filled with people. The Saracen: Land of the Infidel They are built of blocks of red tufa, with facing of travertine. Pagan and Christian Rome Beyond this there were cliffs of the humid red tufa, and the myrtle and the holy thorn grew down their sides, and met in summer the fragrant hesperis of the shore. Wisdom, Wit, and Pathos of Ouida Selected from the Works of Ouida The peculiarly dry and drying nature of the sandstone, or tufa rock, in which these tombs are excavated, made them admirably calculated for the purpose. Museum of Antiquity A Description of Ancient Life Cylindrical celt with narrow point, of dark tufa—½. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 The torrent flowed along the surface of the hardened tufa, and destroyed the few meagre skeletons of trees which had withstood the first eruption. The Secret of the Island In 1880-82 a third and deeper network of galleries was excavated for the sake of extracting the pozzolana, the beds of which support the tufa and the catacombs excavated in it. Pagan and Christian Rome Chip any of these blocks, and you have lava and tufa. Fire Island Being the Adventures of Uncertain Naturalists in an Unknown Track The Christian architects carefully avoided the massive strata of the tufa lithoide, and we believe it is ascertained that all the known catacombs are driven exclusively along the courses of the tufa granolare. Museum of Antiquity A Description of Ancient Life It is carved from what appears to be a compact, grayish olive tufa or basalt, and represents a male personage, distinct in style from the female figure first presented. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 The houses of Guanajuato are built of a species of freestone, which as a fine-grained tufa caps the Sierra in places here, and is known as cantera. Mexico Its Ancient and Modern Civilisation, History, Political Conditions, Topography, Natural Resources, Industries and General Development M. Rousteaux’s cellars here are excavated in the tufa cliff which rises behind the little suburban village, and are all on one level. Facts About Champagne and Other Sparkling Wines The way will be narrow when we reach the corridor leading into the tufa rock. The Coming of the King The different horizontal layers or beds of tufa vary very much in hardness and also in thickness. Museum of Antiquity A Description of Ancient Life Small wide bladed celt made of dark tufa—½. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 In red tufa it is copious and good, if it does not run down through the fissures and escape. The Ten Books on Architecture The cavate lodges of the Verde differ in some particulars from those found in other regions; they are not excavated in tufa or volcanic ash, nor are the fronts of the chambers generally walled up. Aboriginal Remains in Verde Valley, Arizona Thirteenth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1891-92, Government Printing Office, Washington, 1896, pages 179-262 The line of the city walls, of rectangular blocks of tufa, can be traced, and there seem to have been eight gates in the circuit, which was about 4 m. in length. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" The soft bed of Pozzolana sand was, however, not generally used for interments, but the harder bed under it, called "tufa granulare." Museum of Antiquity A Description of Ancient Life The material is shown by microscopic test to be a volcanic tufa. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 There are also numerous other kinds: for instance, in Campania, red and black tufas; in Umbria, Picenum, and Venetia, white tufa which can be cut with a toothed saw, like wood. The Ten Books on Architecture The sole had broken loose in our scramble over the tufa rocks, and hung parted from its upper. Foe-Farrell Mild faces of grave deities lean from the living tufa above those narrow alcoves, where the chisel-marks are still fresh, and where the vigilant lamps still hang suspended from the roof by leaden chains. Sketches and Studies in Italy and Greece, Third series Iceland, being absolutely without sedimentary soil, is composed exclusively of volcanic tufa; that is to say, of an agglomeration of stones and of rocks of a porous texture. A Journey to the Centre of the Earth Another class of objects made of the same fine grained, slaty looking tufa is illustrated in Fig. 24. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 So the fire and the heat of the flames, coming up hot from far within through the fissures, make the soil there light, and the tufa found there is spongy and free from moisture. The Ten Books on Architecture The only material which the first builders of Rome found at hand was the volcanic conglomerate called tufa. Seeing Europe with Famous Authors, Volume 7 Italy, Sicily, and Greece (Part One) Many small square rooms were constructed in the interior from large cut bricks of the tufa of which the bluffs are composed. Illustrated Catalogue of the Collections Obtained from the Indians of New Mexico in 1880 Second Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1880-81, Government Printing Office, Washington, 1883, pages 429-466 When the yellowish tufa of these regions becomes wet, it changes colour and grows of a darker hue. The Delight Makers Leaf shaped objects suggesting spearpoints, of dark tufa—½. Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 "It's calcareous tufa I'm a-wearing, wove on me by exudation and accretion in the past two thousand years." Tales of the Chesapeake This tufa, better known by the name of cappellaccio, is very bad. Seeing Europe with Famous Authors, Volume 7 Italy, Sicily, and Greece (Part One) Many of them are cut in full relief out of the tufa and are always in some natural attitude, and can always be identified where the weather has not destroyed the original form. Illustrated Catalogue of the Collections Obtained from the Indians of New Mexico in 1880 Second Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1880-81, Government Printing Office, Washington, 1883, pages 429-466 Splinters of obsidian and of basalt—sharp fragments, resembling clumsy chisels or knives—served to dig an oblong hole in the soft pumice or tufa of the cliff. The Delight Makers We walked to the borders on a mass of calcareous tufa, and we saw that this substance had even encrusted the reeds on the shore. Consolations in Travel or, the Last Days of a Philosopher It is composed of tufa, carbonate of lime, and was formed in the same manner as stalactites and stalagmites are formed. Saratoga and How to See It The southern front of the grounds of the Villa Violante is bounded and upheld by a wall of tufa fifty feet in height and some four hundred feet long. David Harum A Story of American Life Look more closely and you will perceive that the fluted columns are of Caserta stone, of tufa, or of brick, coated with stucco and raised two steps above the level of the square. The Wonders of Pompeii The tufa and pumice-stone are so friable that, as we have said, the rock can be dug or burrowed with the most primitive implements. The Delight Makers Some thirty feet beyond, the path is stopped by a wall of tufa and stalactite which rises to the lofty roof, and compels the traveller to turn right or left. About Orchids A Chat Below the rocks the workmen followed the spring through four feet of tufa and muck. Saratoga and How to See It The black tufa cliffs crested with shattered masonry—the foundations of the sty where the Boar of Capreæ wallowed—were just on our starboard quarter, when Riddell, the master, came up to Livingstone. Guy Livingstone; or, 'Thorough' Next day six hours, over volcanic tufa; very rough. The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873 Continued By A Narrative Of His Last Moments And Sufferings, Obtained From His Faithful Servants Chuma And Susi Pompeii was buried, not with lava, but with tufa, ashes and scoriæ, and since 1755 has thus been the more easily and extensively uncovered. The Harris-Ingram Experiment It may have been formed by baking of the tufa, which in this country seems always to have been poured out with water after volcanic action. The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume I (of 2), 1866-1868 Then they came to a layer of solid tufa two feet thick, then one foot of muck in which they found another log. Saratoga and How to See It In Rome, the chief refuge of the Christians was in the Catacombs, or quarries of tufa, from which the city was chiefly built, and which were hollowed out in long galleries. Young Folks' History of Rome The points on which the streams of water fell are hollowed by its action, and the space around which the water splashed is covered by calcareous tufa, deposited there by the evaporation of the sun. The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873 Continued By A Narrative Of His Last Moments And Sufferings, Obtained From His Faithful Servants Chuma And Susi Farther on he again swung from the trail to the tufa, never slackening pace, and rode across the broken ground for several miles. The Ridin' Kid from Powder River "Them as believes in signs would say it was about time to go to roost," he remarked, nursing his knee that had been cut on a fragment of ragged tufa. Sundown Slim Below this were three feet of tufa, and there seventeen feet below the apex of the mound they found the embers and charcoal of an ancient fire. Saratoga and How to See It Where there was not sufficient water to produce a stream and fall, but enough to keep the tufa moist, the growth of ferns, and other delicate vegetation, was brilliant and striking. In Indian Mexico (1908) The calcareous tufa seems to be the most recent rock formed. The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873 Continued By A Narrative Of His Last Moments And Sufferings, Obtained From His Faithful Servants Chuma And Susi Then he reined his pony to a bare spot on the grass-dotted tufa, and again dismounted. The Ridin' Kid from Powder River Fortunately for him his course had been over a stretch of yielding bunch-grass, and not, as might have been the case, over the ragged tufa. Sundown Slim I found the mausoleum to consist of a series of chambers and approaches to them, excavated in the solid tufa rock, not unlike the labyrinthine recesses of the catacombs. Roman Mosaics Or, Studies in Rome and Its Neighbourhood Back of all, rise hills of tufa, such as we had just traversed. In Indian Mexico (1908) It is in this calcareous tufa alone that fossil animal remains have yet been found. The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873 Continued By A Narrative Of His Last Moments And Sufferings, Obtained From His Faithful Servants Chuma And Susi Its bottom was covered with fine, loose sand, a strange circumstance in a country composed of tufa and volcanic rock. The Ridin' Kid from Powder River It is composed of a quadrangular gallery formed by a triple line of small granite, tufa, or stucco columns. Over Strand and Field Ascending the slope, we entered a long narrow passage about six feet wide and about fourteen feet deep cut through the tufa rock. Roman Mosaics Or, Studies in Rome and Its Neighbourhood From here we descended, over a long slope of gray tufa, to a pretty stream flowing through black basalt. In Indian Mexico (1908) Material: a grey or a white limestone most usual; tufa and dolerite also used. How to Observe in Archaeology At the east, instead of the lower solid wall of opus quadratum, there is a series of fine tufa arches built to serve as a substructure for something. A Study of the Topography and Municipal History of Praeneste In such cases the tufa may have been broken down into the condition of sand for removal. The Atlantic Monthly, Volume 01, No. 05, March, 1858 Over this a later stratum was deposited called tufa granolare, consisting of a similar mechanical conglomerate of scoriæ, ashes, and other volcanic products, but more porous and friable in texture. Roman Mosaics Or, Studies in Rome and Its Neighbourhood San Estevan is a pretty village, near the summit of some low gray hills of tufa, behind which rises a background of higher hills of the same material. In Indian Mexico (1908) The piano or plain of Sorrento terminates, on the side of the bay, in perpendicular cliffs of tufa, that vary from one to near two hundred feet in height. The Wing-and-Wing Le Feu-Follet From the temple itself we turn now to a brief discussion of a space on the tufa wall which helps to face the cave on the west. A Study of the Topography and Municipal History of Praeneste These ashes had been converted by time into a soft, or friable rock, composing a stone that is called tufa. The Crater Here the sandstone will be found in contact with the trap above and the layers of basalt, trap, tufa, sandstone, shales and conglomerates are exposed. Scientific American Supplement, No. 415, December 15, 1883 Jake Smith, for the first time on this trip, selected at this large lake a curious specimen of tufa. The Discovery of Yellowstone Park But he mentioned, with evident pride, that he differed from all the scientific people who had visited the spot; and he flung about such words as “tufa” and “scilica” with careless freedom. The Silverado Squatters The basilica is built in old opus quadratum of tufa, Not. d. A Study of the Topography and Municipal History of Praeneste These stones came from Rancocus Island, where they were found in inexhaustible quantities, partaking of the character of tufa. The Crater The material lies there for thousands of years and is hard packed into a soft fine grained rock, called tufa. Buried Cities, Volume 1 Pompeii A rude village of grey stone, part, it seemed, of the tufa rocks from which it sprang, pressed round the villa, invaded its olive-gardens, crept up to its very walls. Eleanor Happily, this cone leaned to the north, and it fell upon the plain of sand and tufa which lay between the volcano and the sea. The Mysterious Island The quarries down toward Gallicano supplied tufa of the same texture, but the quarries are too small to have supplied much. A Study of the Topography and Municipal History of Praeneste The former was of tufa, so far as it was rock at all; while the latter was, in the main, pure lava. The Crater At one of these river sources, you see the tufa in course of formation in the river bed; in the other, the reverse process takes place, the tufa there being dissolved. Holidays in Eastern France This rock forms perpendicular bluffs of chalk tufa, and masses of fallen stone lie at their feet. Castles and Cave Dwellings of Europe Smith felt the volcanic tufa, the pulverulent cinders hardened by time, trembling beneath him, but he did not yet see any traces of fresh lava. The Mysterious Island The rock is partly calcareous, and partly of a porous tufa, but softer than that which I saw in the Houle. Travels in Syria and the Holy Land Even the barren, arid, and windswept eastern slopes glowed bright with the volcanic muds locally called laterites, and the foliated beds of saibros and maçapés, decomposed tufas oxidised red and yellow. To the Gold Coast for Gold A Personal Narrative in Two Volumes.—Volume I The plateau itself is intersected with many deep, narrow canyons, having walls of lava, volcanic dust, or tufa, and red sandstone. Canyons of the Colorado They are excavated in the volcanic tufa, and are all much of the same dimensions; one, however, measures 28 feet by 12 feet, and is 7 feet high. Castles and Cave Dwellings of Europe Where formerly had been a pleasant verdure, was now nothing but a waste covered with volcanic tufa. The Mysterious Island The chain of granite mountains continued to our right, parallel with the road, which was overspread with silex, and farther on we met with a kind of basaltic tufa, forming low hills covered with sand. Travels in Syria and the Holy Land In some places, too, a soft layer of tufa has been hollowed for man's abode, suggesting, like the caves, a fine old smuggling-trade. To the Gold Coast for Gold A Personal Narrative in Two Volumes.—Volume I It is a porous tufa adapted, presumably, for sheltering and fecundating vegetable spores. Old Calabria The face of the mountain is precipitous, and is of a porous tufa full of holes. Castles and Cave Dwellings of Europe The rocks are all of igneous origin, but of very different ages, traps, basalts, amygdaloids, tufas, ochres, and porous lavas. The Principal Navigations, Voyages, Traffiques and Discoveries of the English Nation — Volume 01 They seek in our islands for the earth most similar to this, and prefer a yellowish red volcanic tufa. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 The colours of the wall are the grey of basalt, the purple of volcanic conglomerates, and the bright reds and yellows of tufas. To the Gold Coast for Gold A Personal Narrative in Two Volumes.—Volume I The country around Manila is composed of tufa of a light gray color, which being soft and easily worked, is employed as the common building material in the city. The Former Philippines thru Foreign Eyes Formerly a barrier of volcanic tufa stretched across the valley of the Borne; this barrier had been ejected from the volcano of La Denise. Castles and Cave Dwellings of Europe While I am on the subject of volcanic phenomena, I may as well add a word on the origin of the trass or tufa, which is so thickly spread over this country. The Mirror of Literature, Amusement, and Instruction Volume 12, No. 326, August 9, 1828 The neighbouring hills, called Los Morros de Valencia, are composed of white tufa, a very recent limestone formation, immediately covering the gneiss. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 Garajáo, whose ruddy rocks of volcanic tufa, embedding bits of lava, probably entitled it 'Brazenhead,' is worth inspecting from the sea. To the Gold Coast for Gold A Personal Narrative in Two Volumes.—Volume I The rocks in the vicinity are all tufa, and some of the springs break out close to the cold water of the lake. The Former Philippines thru Foreign Eyes A mass of the cretaceous tufa has slipped bodily down to the foot of the crag, against which it leans in an inclined position. Castles and Cave Dwellings of Europe I soon came to the valley, the sides of which are composed of what is called, in the language of geology, tufa, and in that of the country, dukstein, or trass. The Mirror of Literature, Amusement, and Instruction Volume 12, No. 326, August 9, 1828 The whiteness of this tufa, which reflects the rays of the sun, contributes greatly to the excessive heat felt in this place. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 The walls of some are of a smooth grey stone, the bottoms flat, and very deep in sand, but others resemble the tufa cones of Mauna Kea. The Hawaiian Archipelago In an hour after our departure we reached the little island of Majava, which consists of perpendicular strata of a hard, fine-grained, volcanic tufa, with small, bright crystals of hornblende. The Former Philippines thru Foreign Eyes That of Mondoumerc is cut in the tufa, and is about 20 feet deep. Castles and Cave Dwellings of Europe They are lined with sulphur, and differ by the enormous size of their openings from those observed in volcanic tufas* in Italy, at Teneriffe, and in the Andes. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 It is composed of fine tufa, in which is imbedded a great number of large angular fragments of trachyte, some of which are more than three feet in diameter. The Naturalist in Nicaragua This summit is a group of six red tufa cones, with very little apparent difference in their altitude, and with deep valleys filled with red ash between them. The Hawaiian Archipelago The tufa is generally found to form the gently-sloping plains that surround these mountains, and has in all probability been ejected from them. The Former Philippines thru Foreign Eyes They are cut in the stone, which is the tufa, or soft gravel stone, and easily admits of any workmanship demanded by taste or necessity. Castles and Cave Dwellings of Europe Among the limestone formations we must distinguish those which are essentially subordinate to volcanic tufas* from those which appear to be the work of madrepores and other zoophytes. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 The soil was entirely composed of volcanic tufas, and was covered with fine grass; but there were no springs or brooks, all the moisture sinking into the porous ground. The Naturalist in Nicaragua This area of tufa cones, dark and grey basalt, clinkers, scoriæ, fine ash, and ferruginous basalt, is something gigantic. The Hawaiian Archipelago The tufa is likewise exposed to view on the shores of the lake; but elsewhere, except on a few bare hills, it is entirely covered with the dense and luxuriant foliage. The Former Philippines thru Foreign Eyes The stone is a tender tufa, containing a quantity of little cores of black silex, giving it a spotty appearance. Castles and Cave Dwellings of Europe It is only in some ravines, that we find columnar basalts, somewhat curved, and above them very recent breccia, resembling volcanic tufa. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 For scores of miles every rock is trachytic, and the earth decomposing tufas. The Naturalist in Nicaragua To the south of these plains violent volcanic action is everywhere apparent, not only in tufa cones, but in tracts of ashes, scoriæ, and volcanic sand. The Hawaiian Archipelago The tufa is generally of a soft character, crumbling in the fingers, and in it are found coarse and fine fragments of scoria, pumice, etc. The Former Philippines thru Foreign Eyes It was excavated through volcanic tufa and was 3,000 feet long, 25 feet wide, and of the pointed arch style. Marvels of Modern Science M. Cordier brought away some of this tufa, which resembles that in the environs of Naples and Rome, and contains fragments of reeds. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 Alpine crags seem vertical but are nearly always inclined; their primary rock, you know, cannot flake off abruptly like this tufa. South Wind Some of the figures bore on their heads crowns of red tufa, and the aspect of all was towards the ocean. By Reef and Palm Iceland, which is entirely devoid of alluvial soil, is wholly composed of volcanic tufa, that is to say, an agglomeration of porous rocks and stones. A Journey to the Interior of the Earth These springs deposit much tufa in the form of spherical balls. Geological Observations on South America Strata of clay accompany basalts, as tufas accompany modern lavas. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 The houses, when not whitewashed, showed their building stone of red volcanic tufa; windows were aflame with cacti and carnations; slumberous oranges glowed in courtyards; the roadways underfoot were of lava—pitch-black. South Wind The space between the two series of small stones is filled in with a sheet of melted granite, some twenty-four inches wide, resting on calcareous tufa. Manners and Monuments of Prehistoric Peoples We walked upon granite mingled with siliceous tufa. A Journey to the Interior of the Earth It is formed in strata of Old Red Sandstone, volcanic tufa, ignis fatuus, and bicarbonate of hornblende, superimposed upon argillaceous shale, and contains the prints of prehistoric man. Mark Twain's Letters — Volume 4 (1886-1900) In the island of Teneriffe, strata of tufa, puzzolana, and clay, separate the range of basaltic hills from the currents of recent lithoid lava, and from the eruptions of the present volcano. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 Anon came some yawning cleft or an assemblage of dizzy rock-needles, fused into whimsical tints and attitudes, spiky, distorted, over-toppling; then a bold tufa rampart, immaculate in its beauty, stainless as a curtain of silk. South Wind In all the houses and in every room of each were found beneath the tufa burying them masses of lava and volcanic scoriae, forming a most eloquent witness of the cause of their destruction. Manners and Monuments of Prehistoric Peoples A round tower of stakes and reeds, nine or ten feet high, is raised and plastered; a floor is next made of soft tufa, or ant-hill material and cowdung. A Popular Account of Dr. Livingstone's Expedition to the Zambesi and its tributaries And of the Discovery of Lakes Shirwa and Nyassa, 1858-1864 Over the shallow tufa basin of the great fountain on the hill Daphne stood gazing into the water. Daphne, an autumn pastoral It is only when lavas are covered with tufa and ashes, that the volcanic islands, losing that appearance of nudity which marks their origin, bedeck themselves in rich and brilliant vegetation. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 It was through this long grass that we fought our way to the tufa cones, with the red ragged crests against the blue sky. Unbeaten Tracks in Japan It was in this tufa, which is eight feet thick, that the first signs of buildings were discovered. Manners and Monuments of Prehistoric Peoples The bottom above the Falls, save a few rocks close by them, is generally sandy or of soft tufa. A Popular Account of Dr. Livingstone's Expedition to the Zambesi and its tributaries And of the Discovery of Lakes Shirwa and Nyassa, 1858-1864 The soil was light and friable, and below lay a bed of silicious tufa; therefore, even without tools, the aperture deepened quickly. In Search of the Castaways; or the Children of Captain Grant These calcareous masses must not be confounded with the very recent depositions of tufa, or carbonate of lime, which fill the plains of the Tuy; they form beds of mica-slate, passing into talc-slate.* Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 From Mororan to Sarufuto there are everywhere traces of new and old volcanic action—pumice, tufas, conglomerates, and occasional beds of hard basalt, all covered with recent pumice, which, from Shiraoi eastwards, conceals everything. Unbeaten Tracks in Japan Unfortunately, this is not so in my case: you might as well try to dig a knife into a block of tufa. The Life of the Spider The place of burial shall be an oblong vaulted chamber underground, constructed of tufa, which will last for ever, having stone couches placed side by side. Laws A slight mechanical change would produce a crater of eruption in these slopes, which consisted merely of whitish silicious tufa. In Search of the Castaways; or the Children of Captain Grant The neighbouring hills, only one hundred and forty toises in height, are composed of calcareous tufa; but their abrupt declivities project like promontories on the plain. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 The vast deposits of porous tufa in the surrounding country are certainly evidences of former great eruptions from Mount Taal. The San Francisco calamity by earthquake and fire The torrent flowed along the surface of the hardened tufa, and destroyed the few meager skeletons of trees which had withstood the first eruption. The Mysterious Island Herculaneum was buried with lava, or rather with tufa, and it is so very hard that the expense of uncovering of only a small part of that city has been very great. The San Francisco calamity by earthquake and fire We have before us the narrow lanes, paved with tufa, in which Roman wagon wheels have worn deep ruts. The San Francisco calamity by earthquake and fire |
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