| 单词 | tuff |
| 例句 | Later, the stars wander out of their nursery to seek their fortunes in the Milky Way, stellar adolescents still surrounded by tuffs of glowing nebulosity, residues still gravitationally attached of their amniotic gas. Cosmos 1980-01-01T00:00:00Z I didn’t raise you to steal from others, so dont complain to me how tuff it is in prison. In Cold Blood 1966-01-01T00:00:00Z In Louisiana, Mom had us climb up on the roof of the car and pull down tuffs of Spanish moss hanging from the tree branches. The Glass Castle 2005-03-01T00:00:00Z He was thinner than ever, large tuffs of hair had fallen out leaving wide bald patches, and he writhed in Ron’s hands as though desperate to free himself. Harry Potter And The Prisoner Of Azkaban 1999-07-08T00:00:00Z Both items are made of tuff, carved from the Capitoline Hill that overlooks the Forum, and which is home to today’s City Hall. Roman Forum find could be shrine to Rome’s founder, Romulus 2020-02-21T05:00:00Z Around 30m years ago, rhinos, camels, giant ground sloths and saber-toothed cats roamed a lush grassland before being buried by a series of volcanic eruptions, which preserved their bones in colourful layers of tuff. Top 10 national and state parks in Oregon 2014-07-16T04:00:00Z Oakland’s fourth site of tuff sheds, which officials now call “cabin communities”, is scheduled to open this month on a city lot that housed a burned-down library. California is moving homeless people into sheds – but is it right? 2019-01-14T05:00:00Z These slabs of tuff, basalt or dolomite are carved with highly decorative crosses, and their elaborate patterns suggest the influence of Islamic culture even as they attest to an unshakable Christian faith. Reverent Beauty: The Met’s Armenia Show Is One for the Ages 2018-10-25T04:00:00Z Buildings combine classic Soviet architecture with the striking pink and orange volcanic tuff rock native to the country. Next Stop: In Armenia, Art in the Shadow of Ararat 2012-10-05T15:09:14Z I looked south to the river, shaded by cottonwood trees, coursing down between 300-foot-high walls of volcanic tuff. Rugged Country, Rugged History in California?s Owens Valley 2010-05-06T21:41:00Z The riotous tropical vegetation was cut back, and existing pathways were improved with steps of volcanic tuff, handworked balustrades and pergolas dripping with jade vines, dragon’s claws, thunbergia. Balinese Beat 2010-06-01T04:00:00Z Since the 1980s, Smith Rock has been a sport-climbing mecca for climbers from all over the world, with more than 1,800 routes, some of them permanently bolted, up the volcanic tuff face. Topping off a resort vacation on Oregon’s Smith Rock 2017-10-26T04:00:00Z Even in the "tuff shed" cubicles the city provided for the camp dwellers, calling them alternative housing, a man was shot and killed last winter. "There is no constitutional right to housing": Mass eviction lays bare America's foundational flaws 2023-03-08T05:00:00Z Rock formed from large deposits of tephra fragments is called tuff. An Introduction to Geology 2017-01-01T00:00:00Z The river tracks a diverse landscape from the southern edge of the Rocky Mountains through rugged basalt hillsides, layers of volcanic tuff, and the red and yellow cliffs made famous by painter Georgia O’Keeffe. Drought tests centuries-old water traditions in New Mexico 2021-09-18T04:00:00Z The point is “GOATs” do not quit when the going gets tuff. Letters: Simone Biles is a GOAT or a quitter, depending on perspective 2021-08-01T04:00:00Z The area is known for its Bishop tuff — a type of rock formed by super-heated volcanic ash, which is of interest to researchers. Caltech 'deeply' regrets drilling holes in sacred Native American petroglyph site 2021-07-19T04:00:00Z Oakland rolled out its controversial “tuff shed” experiment, housing homeless people in makeshift structures that resemble basic toolsheds. The Oakland women who took over a vacant lot to house the homeless 2020-01-07T05:00:00Z If the fragments accumulate while still hot, the heat may deform the crystals and weld the mass together, forming a welded tuff. An Introduction to Geology 2017-01-01T00:00:00Z "And 'meeting/trusting' people in my position is really tuff," she noted. Miley Cyrus fires back at critics who 'slut shamed' her after Cody Simpson kiss: 'Get used to me dating' 2019-10-05T04:00:00Z Red scoria is also porous and therefore less dense than tuff, making it easier to raise into position. 'Genius engineers' Easter Island's hats 2018-06-18T04:00:00Z Fish Slough, a National Natural Landmark on the eastern edge of the tablelands, includes vivid petroglyphs chipped into bizarrely eroded volcanic tuff formations that overlook a verdant desert oasis laced with meandering spring-fed creeks. Caltech 'deeply' regrets drilling holes in sacred Native American petroglyph site 2021-07-19T04:00:00Z He looked at the tuff cones dotted along the rocky shores, and saw a marvelous type of basaltic rock that wouldn't even be named until ten years after his visit: palagonite. Darwin, the Galápagos, and the Evolution of Basalt 2018-05-06T04:00:00Z Each eruption created large rhyolite lava flows as well as pyroclastic flows that solidified into tuff formations. An Introduction to Geology 2017-01-01T00:00:00Z In the first six months, waves rapidly eroded the volcanic tuff, which is hardened ash that forms the island’s central cone. A tiny island, created by a 2014 volcanic eruption, may provide clues to Mars’s past 2017-12-29T05:00:00Z This material then collects at the ocean surface, forming a tuff cone that in HTHH's case is more than 100m high. 'Baby island' is lab to study Mars 2017-12-11T05:00:00Z Tempers were running high over what became known as the KBS tuff controversy. Frank Brown (1943-2017) He saw how it must have evolved from the basalt itself, and recognized that the tuff cones must have erupted under water. Darwin, the Galápagos, and the Evolution of Basalt 2018-05-06T04:00:00Z The rock tuff and welded tuff is often formed from these pyroclastic flows. An Introduction to Geology 2017-01-01T00:00:00Z The researchers are convinced that these are true volcanic cones, similar to common volcanoes on Earth known as scoria cones and tuff cones. Scientists Find Some of Mars's Youngest Volcanoes--and Discover They Could Have Supported Life 2017-07-24T04:00:00Z Geologists read the histories of such blasts in deposits of erupted material called tuff, and the rock record shows that super-volcanoes tend to be repeat offenders. Here’s how the world could end—and what we can do about it 2016-07-14T04:00:00Z Brown would walk miles on the off-chance that he would find purer samples of a tuff. Frank Brown (1943-2017) The glassy mud of the 6,000-foot-wide tuff ring solidified into rock. Fort Rock hike offers a glimpse into Oregon’s history 2016-02-28T05:00:00Z In this case, the tuff was the product of a huge eruption in the Pleistocene. The science you showed us 2016-01-14T05:00:00Z The detail in the images is sufficient to reveal that the cone is built of layers in a similar way as in tuff cones on Earth. Scientists Find Some of Mars's Youngest Volcanoes--and Discover They Could Have Supported Life 2017-07-24T04:00:00Z It also covered much of the eastern Sierra Nevada range with a coarse volcanic tuff, or ash fall. Researchers solve mystery of stone columns at reservoir in California 2015-11-23T05:00:00Z Speed and reliability of construction was made possible by the use of standardised material for the facing - first in a network of regular blocks of volcanic tuff, then in bricks. Are modern blocks of flats modelled on Roman insulae? - BBC News 2015-08-19T04:00:00Z According to Oregon State Parks signage at the trailhead, the tuff ring originated from a volcanic eruption more than 100,000 years ago. Fort Rock hike offers a glimpse into Oregon’s history 2016-02-28T05:00:00Z Over time, the fragments, called tuff, cemented into a hard rock similar to sandstone, Jónsson said. Red Sea Parts for 2 New Islands 2015-05-30T04:00:00Z We butted heads professionally, behind the scene especially with management, but it was business tuff. Everything Opie, Anthony and Jim Norton Said to Newsweek, in 10,000 Words 2015-04-09T04:00:00Z The statue is one of only 14 carved from basalt, as the majority are made of the softer volcanic tuff. Museum installs 'Easter Island head' 2015-03-21T04:00:00Z This, in turn, led to the regrettable decision to reject massive salt as the repository host rock and to choose, instead, the fractured, leaky and oxidizing volcanic tuff of Yucca Mountain. Confidence -- What Does It Mean For Nuclear Waste? 2014-08-29T04:00:00Z These volcanic rocks, or tuff, were a boon to Rome's earliest architects, who soon learned the tuff was strong and easy to carve into building blocks. "Secret" Labyrinth of Tunnels under Rome Mapped 2013-12-04T23:18:16.492Z For underwater structures, lime and volcanic ash were mixed to form mortar, and this mortar and volcanic tuff were packed into wooden forms. Ancient Roman Concrete Is About to Revolutionize Modern Architecture 2013-06-14T17:05:12Z The car I chose to inflict such punishment on was Seat's all-conquering Alhambra – a tuff mudder if ever there was one. Car review: Seat Alhambra 2012-10-27T23:13:54Z The Wuda tuff flora—the first discovered in Asia—is remarkably accessible and thick and contains a puzzling group of extinct fernlike plants. Primeval Land Rises From the Ashes 2012-05-10T19:19:37Z Additional ash subsequently buried the craters and, over eons, hardened to become rock known as tuff. Primeval Precipitation: What Fossil Imprints of Rain Reveal about Early Earth 2012-03-28T19:45:00.237Z "Warrup!" said the motor, and tuff, tuff, tuff, and backed and snorted while old Kipps danced about on the pavement as if foreseeing complex catastrophes, and told the driver, "That's all right." Kipps The Story of a Simple Soul 2012-03-18T02:00:19.567Z Here it is, dis time a little wine wid de water and a little 'tuff to make you sleep quiet. A Roving Commission Or, Through the Black Insurrection at Hayti 2012-02-06T03:00:13.023Z The car I chose to inflict such punishment on was Seat's all-conquering Alhambra – a tuff mudder if ever there was one. Car review: Seat Alhambra 2012-10-27T23:13:54Z Yucca Mountain’s volcanic tuff is prone to cracks and faults from seismic activity, which might, over thousands of years, let water seep in. Nuke Us: Meet The Town That Wants America's Worst Nuclear Waste 2012-01-25T23:04:09Z Scales of native copper are very generally disseminated through this rock, through a species of trap tuff which nearly resembled it, and also through a reddish sandstone on which it appears to rest. A Journey from Prince of Wales's Fort in Hudson's Bay to the Northern Ocean in the Years 1769, 1770, 1771, 1772 New Edition with Introduction, Notes, and Illustrations 2011-12-26T03:00:13.520Z In this space I had some pretty tuff times, and will relate some few things that happened to me. A Narrative of the Life of David Crockett, of the State of Tennessee. 2011-11-07T02:00:17.560Z I'se brought 'tuff to make dat, but had no time to look for berries for skin. A Roving Commission Or, Through the Black Insurrection at Hayti 2012-02-06T03:00:13.023Z But rocks of the former type have not broken into or involved the overlying strata, and they are usually marked by the characteristic structures of superficial lavas and by their association with volcanic tuffs. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z To andradite may be referred melanite, a black garnet well known from the volcanic tuffs near Rome, used occasionally in the 18th century for mourning jewelry. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z The fundamental formation is a series of great sheets of columnar basalt, 70 to 100 ft. thick, in which are intercalated thin beds of tuff. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z Bread solid, beef stake about az thik az a blister plaster, and so tuff az a hound’s ear. The Complete Works of Josh Billings 2011-07-01T02:00:13.387Z The rocks erupted by Etna have always been very constant in composition, viz. varieties of basaltic lava and tuff containing little or no olivine—the rock type known as labradorite. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 8 "Ethiopia" to "Evangelical Association" 2011-03-05T03:00:24.537Z From the Cambrian period all through Palaeozoic times there rose at intervals in that country a succession of volcanic centres from some of which thousands of feet of lavas and tuffs were discharged. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z As early as the year 1700, a human skull was dug out of the calcareous tuff of Constatt, in company with the bones of the mammoth. A Manual of the Antiquity of Man 2011-02-21T03:00:07.080Z What is the nature of the beds of breccia, conglomerate, ash, and tuff, with which contemporaneous igneous rocks are often associated? Geology 2011-02-20T03:00:12.660Z They shed their feathers by having them pulled out, and these feathers make a good, tuff bed. The Complete Works of Josh Billings 2011-07-01T02:00:13.387Z O ye tuff Rogue, what troubles have I trotted through! The Mad Lover The Works of Francis Beaumont and John Fletcher (3 of 10) 2011-01-20T03:00:06.760Z The contemporaneous igneous rocks include olivine basalts, andesites, trachytes, rhyolites and tuffs, which are pierced by the microgranite of the Black Hill and by several vents filled with agglomerate, as near Swanston. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z I’m blest if there’ll be a bit of country soon, or a blessed scrap of chickweed or grunsel, or a tuff to cut anywheres. A Little World The phenomena presented by the necks of intrusive rock do not differ from those characteristic of agglomerate or tuff necks. Geology 2011-02-20T03:00:12.660Z The crow iz a tuff bird, and kan stand the heat like a blacksmith, and the cold like a stun wall. The Complete Works of Josh Billings 2011-07-01T02:00:13.387Z They have been usually regarded as intrusive, but south of Tayvallich on the mainland, lavas and tuffs, which have escaped deformation, occur in the Easdale slates and the pebbly limestone. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5 "Arculf" to "Armour, Philip" Farther north nearly the whole of the depression is filled with lavas, tuffs and agglomerates, derived from the Tertiary and recent volcanoes which form the most striking feature of the Andes of Ecuador. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z The whole of this consists of tuffs and lavas, andesites prevailing in the west and rhyolites and dacites in the east. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" Contemporaneous igneous rocks are frequently associated with more or less regular beds of breccia, conglomerate, ash, tuff, &c. Geology 2011-02-20T03:00:12.660Z Geese stay well; sum ov our best biographers say, 70 years, and grow tuff tew the last. The Complete Works of Josh Billings 2011-07-01T02:00:13.387Z The Lower Old Red Sandstone, chiefly composed of volcanic rocks—lavas and tuffs—rests unconformably on the metamorphic series. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5 "Arculf" to "Armour, Philip" At the base there is frequently a conglomerate or tuff of porphyritic rocks. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 2 "Bohemia" to "Borgia, Francis" In Minahassa, at the northern extremity, there is a large area of tuffs and agglomerates consisting chiefly of augite andesite, and in this area there are many recent volcanic cones. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" An Italian name for a particular kind of volcanic rock, formed like tuff, by the cementing together of volcanic sand, cinders, or scoriæ, &c. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology I do want sum ov them good, old-fashioned, tuff girl names revived and extended. The Complete Works of Josh Billings 2011-07-01T02:00:13.387Z In the Lough Mask district beds of this age are found, as in Wales, interstratified with volcanic lavas and tuffs. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" In the Cambrian of Brittany there are acid lavas and tuffs. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Large areas are overlain with trachyte, basalt, obsidian, tuff and pumice. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" 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 The great mass of the surface of the mountain, not specially mentioned above, is volcanic tuff. Etna A History of the Mountain and of its Eruptions Basic lavas, with andesites, trachytes, tuffs and agglomerates are the most common Scottish rocks of this period. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Basalt and tuff, probably of Tertiary age, form the great mass of the Cameroon mountain, also the island of Fernando Po. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Outer tuff cone with interior cinder cone and crater; No. 3. Volcanoes: Past and Present Among the ruins will be seen skeletons of men, and impressions of the human form stamped in solid rocks of tuff. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The deposits are marine, consisting mainly of sandstone and limestone, together with tuffs and conglomerates of porphyry and porphyrite. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" A superficial layer of recent volcanic tuffs occurs in several parts of the island. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" On the Pacific coast metamorphism of the rocks is common, and lava-flows and tuffs occur in them. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" On walking down the valley one may sometimes see the junction of the tuff with the slate-rock which enfolds it. Volcanoes: Past and Present On the sides of a ravine between that town and Forio, I saw masses of greenish tuff which had been thrown down. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Then you no want me to give you doctor ’tuff?’ Hunting the Skipper The Cruise of the "Seafowl" Sloop Silver and gold are found in veins and replacements in a series of Tertiary volcanic flows and tuffs, all of which have been complexly faulted. The Economic Aspect of Geology In north Devonshire these rocks consist of sandstones, grits and slates, while in south Devon there are, in addition, thick beds of massive limestone, and intercalations of lavas and tuffs. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" These extensive sheets of water are surrounded by banks of tuff and volcanic sand, in which fragments of augite, leucite, and crystals of titanite are distributed. Volcanoes: Past and Present This tuff is porous; and, when first excavated, is soft and easily worked, but acquires a considerable degree of induration on exposure to the air. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology But in the upper Cretaceous and lower Tertiary, especially in north-western Baluchistan, there is an extensive development of volcanic tuffs and conglomerates, which are probably contemporaneous with the Deccan Traps of India. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" The Boleo copper deposits of Lower California occur in volcanic tuffs and associated conglomerates of Tertiary age. The Economic Aspect of Geology Felsitic lavas and tuffs occur in the Middle Devonian of Australia. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" The tuff consists of white felspathic mud, with fragments of slate and lava, reaching a depth in some places of 150 feet. Volcanoes: Past and Present R. Bunsen, in his account of the pseudo-volcanic phenomena of Iceland, describes many valleys where sulphurous and aqueous vapors burst forth with a hissing sound, from the hot soil 448 formed of volcanic tuff. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The latter are represented by large contemporaneous deposits of tuff and felsitic lava which in the Snowdon District are several thousand feet thick. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" Round the north and north-east margin there is a great development of volcanic rocks—lavas, tuffs and agglomerates—belonging to the Calciferous Sandstone series, and passing upwards into the Carboniferous Limestone. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" In Devonshire diabases and tuffs are found in the middle division. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" Simple tuff cone with central crater; No. 2. Volcanoes: Past and Present The solid nucleus of the reef, where the black rock is now found, withstands the movements of the sea; while the surrounding loose tuffs are cut away to a somewhat lower level. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology If she goes back on me I may be tuff again; but if she continues to hold out faithful I shall be a daisy all the time. The Grocery Man And Peck's Bad Boy Peck's Bad Boy and His Pa, No. 2 - 1883 The position of the Millstone Grit is occupied by lavas and tuffs, extending almost continually as a narrow fringe round the northern margin of the Coal Measures from Saltcoats by Kilmaurs to the Crawfordland Water. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" Interbedded lavas and tuffs are found in the island of Hoy. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" The summits of Ben More and its neighbouring height, Ben Buy, are formed of beds of ash and tuff. Volcanoes: Past and Present In the tuffs, moreover, or solidified mud, deposited by these aqueous lavas, impressions of leaves and of trees have been observed. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology In the immediate neighbourhood of the place where the main spring rises there is a thick solidified lava stream, surrounded by tuffs, which near the surface is cleft into a number of large vesicular blocks. The Voyage of the Vega round Asia and Europe, Volume I and Volume II “Lubbly ’tuff!” cried Pomp, as he scraped up the fallen wood ashes. Mass' George A Boy's Adventures in the Old Savannah Plenty shell, plenty copra, plenty old ship ’tuff. King o' the Beach A Tropic Tale The tuff contains fragments of lava and pebbles of Apennine limestone, and was deposited under the waters of an extensive lake at a time when volcanic action was rife amidst the Alban Hills. Volcanoes: Past and Present The Herculanean tuffs containing the rolls of papyrus, of which the characters are still legible, have, as was before remarked, been for ages covered by lava. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The bare cliffs of tuff constituted a natural means of defense, and where they were low, walls were built. Lucretia Borgia According to Original Documents and Correspondence of Her Day The visible land was of black or chocolate-brown, being composed of volcanic tuff, basalts, and granite. South with Scott But rag and trap and tuff is the word, and tough the whole business is. Two Knapsacks A Novel of Canadian Summer Life At one place I noticed an Indian trail leading up a ridge apparently consisting of volcanic tuff. Unknown Mexico, Volume 1 (of 2) A Record of Five Years' Exploration Among the Tribes of the Western Sierra Madre; In the Tierra Caliente of Tepic and Jalisco; and Among the Tarascos of Michoacan Argillaceous tuff, containing bricks and fragments of buildings not rounded by attrition. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology "Hammering and clinking, chattering stony names Of shale and hornblende, rag and trap and tuff, Amygdaloid and trachyte." The Squire of Sandal-Side A Pastoral Romance The stone in which they are impressed is a spongy volcanic tuff, and the layer superimposed upon them in the quarry was of similar material. Roman Mosaics Or, Studies in Rome and Its Neighbourhood First, That the pure parts of Metals are of themselves very flexible and tuff; that is, will indure bending and hammering, and yet retain their continuity. Micrographia Some Physiological Descriptions of Minute Bodies Made by Magnifying Glasses with Observations and Inquiries Thereupon The bones were dug up by Mr. Walter Mantell from a bed of marly sand, containing magnetic iron, crystals of hornblende and augite, and the detritus of augitic rocks and earthy volcanic tuff. COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 Jets of red-hot lava, fragments of fractured rock, and occasionally mud composed of a mixture of pumice, tuff, and sea-water, were hurled into the air. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The kindly, generous twilight, so unlike the swift shrift of the Florida levels, still lingers; and presently, amid bits of syenite, volcanic tuff and scoria, she has found this nodule of amygdaloid. Lippincott's Magazine of Popular Literature and Science Volume 12, No. 31, October, 1873 We soon found one which I considered to be of the right sort, namely a perpendicular crevice with red tuff about the sides. Three Expeditions into the Interior of Eastern Australia, Volume 2 In a section of the bank near the junction, I observed a bed of calcareous tuff. Three Expeditions into the Interior of Eastern Australia, Volume 1 There we took up our station, and thereafter observed the fighting by peeping through windows partially closed with blocks of volcanic tuff. The Philippines: Past and Present (Volume 1 of 2) They were found inclosed in an indurated tuff, and in this matrix was preserved a perfect cast of a woman, perhaps the mistress of the house, with an infant in her arms. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Porphyritic tuffs and massive limestone compose the western chain of the Andes above Lima, while in the Oroya Valley we find carbonaceous sandstones. Tom Swift and His Big Tunnel, or, the Hidden City of the Andes The calcareous conglomerate was unlike any rock I had seen elsewhere, consisting in part of a tuff resembling the matrix of the fossil bones found in limestone fissures. Three Expeditions into the Interior of Eastern Australia, Volume 2 The intervening spaces are concealed with layers of pumice, ashes and volcanic tuff. The Voyage of the Beagle The squire relieves Erec of his helmet, unlaces the mouth-piece from before his face; then he spreads out the cloth before them on the thick tuff. Four Arthurian Romances That city is covered with numerous alternations of different horizontal beds of tuff and lapilli, for the most part thin, and subdivided into very fine layers. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Some of the tuffs may be of the Jurassic age, though the Cretaceous period is also largely represented. Tom Swift and His Big Tunnel, or, the Hidden City of the Andes The ground on the eastern shore was full of wombat holes which had been made in a stratum of compact tuff about a foot in thickness. Three Expeditions into the Interior of Eastern Australia, Volume 2 These consist either of lava or scoriae, or of finely- stratified, sandstone-like tuff. The Voyage of the Beagle As distinguished from ordinary ash beds or tuffs, they are essentially coarser, less frequently well-bedded; they are less persistent and tend to occur locally, but may attain a very great thickness. The Project Gutenberg Encyclopedia Volume 1 of 28 Brown incoherent tuff, full of pisolitic globules in layers, from half an inch to three inches in thickness 1 6 4. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology And it come fearful tuff on me, fearful tuff, for I had to stand the brunt on it. Samantha among the Brethren — Volume 2 The tuff was irregularly cavernous and it was loose, calcareous, or friable in the lower part where the wombats had made their burrows. Three Expeditions into the Interior of Eastern Australia, Volume 2 They inhabit burrows, which they sometimes make between fragments of lava, but more generally on level patches of the soft sandstone-like tuff. The Voyage of the Beagle On the west it is enclosed by steep banks of tuff, which tolerate no swamps of mangroves on their borders. The Former Philippines thru Foreign Eyes Brown earthy tuff, with lapilli divided into layers 4 0 7. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology In its center there would have to be an old, modest fountain of yellowish tuff and with a bowl of broken porphyry. Mogens and Other Stories Calcareous tuff or grit may be observed in various localities, and calcareous concretions abound in the blue clay of almost all the extensive plains on both sides of the mountains. Three Expeditions into the Interior of Eastern Australia, Volume 2 That tuff he considers a product of the latest eruption of the volcano. The Antiquity of Man In the Sierra Nevadas the Miocene river gravels of the valleys of the western slope, with their placer deposits of gold, were buried beneath streams of lava and beds of tuff. The Elements of Geology The tuff does not fold in continuous sheets round the hills as would have happened if they had been formed by the upheaval of horizontal layers. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology On one side of the fountain a semicircular bench of tuff and terracotta. Mogens and Other Stories They project in relief several inches, or sometimes feet, from the face of the cliff, being extremely compact, and less destructible than the intersected tuffs and porous lavas. The Student's Elements of Geology They are all embedded in a light porous tuff, resembling in colour and mineral composition the ejectamenta of several of the latest eruptions of Denise. The Antiquity of Man The mountain basin of the Yellowstone Park was filled to a depth of several thousand feet with tuffs and lavas, the oldest dating as far back as the beginning of the Tertiary. The Elements of Geology It will be observed in the above section that two of the brown, half-consolidated tuffs are filled with small pisolitic globules. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The loose, grayish white dust; the reddish, molded stone, the hewn, yellowish, porous tuff; the dark, polished porphyry, gleaming with moisture, and the living, tiny, silvery jet of water: material and colors harmonize rather well. Mogens and Other Stories The largest number of fossils have been collected from the tuffs and conglomerates and some beds of limestone in the island of Baixo, off the southern extremity of Porto Santo. The Student's Elements of Geology Such a fauna is found fossil in another layer of tuff covering the slope of Denise, opposite to that where the museum specimen was exhumed. The Antiquity of Man Most volcanoes are built, like Vesuvius, both of lava flows and of tuffs, and sections show that the structure of the cone consists of outward-dipping, alternating layers of lava, scoria, and ashes. The Elements of Geology The tuff which envelops the buildings consists of comminuted volcanic ashes, mixed with pumice. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology This tuff appears to the eye nearly pure; but when placed in acid it leaves a considerable residue of sand and broken crystals, apparently of feldspar. Geological Observations on South America The contemporaneous volcanic rocks intercalated in this Upper Old Red consist of feldspathic lavas, or feldstones, with associated tuffs or ashy beds. The Student's Elements of Geology This harbour occupies part of the interior of a shattered crater of tuff larger than that last described. Volcanic Islands The absence of tuffs and lavas among the Carboniferous strata of North America shows that here volcanic action was singularly wanting during the entire period. The Elements of Geology Over an extensive area, the soil consisted of that igneous gravel called "tuff," reddish in color as if made from crushed bricks. Twenty Thousand Leagues Under the Sea Associated with the salt in the superficial beds, there are numerous, thin, horizontal layers of impure, dirty-white, friable, gypseous and calcareous tuffs. Geological Observations on South America The tuffs alluded to may not always be marine, but may include, in some places, fresh-water shells; in others, the bones of terrestrial quadrupeds. The Student's Elements of Geology I may remark, that I saw at Terceira, in the Azores, a crater of tuff or peperino, very similar to these of the Galapagos Archipelago. Volcanic Islands The materials of which tuffs are composed are easily recognized as volcanic in their origin. The Elements of Geology Rocks formed from these fragmentary volcanic materials are known as tuff. The San Francisco calamity by earthquake and fire I could not have told that these shells had not formerly been brought up by man, if I had not found one very small mass of them cemented together in a friable calcareous tuff. Geological Observations on South America In the upper portion of these deposits volcanic tuffs or ashy materials are interstratified with ordinary muddy sediment, and here and there associated with thick beds of feldspathic lava. The Student's Elements of Geology It at first appears very singular, that all the craters formed of tuff have their southern sides, either quite broken down and wholly removed, or much lower than the other sides. Volcanic Islands Ancient tuffs are known by the fragmental character of their volcanic material, even though they have been altered to firm rock. The Elements of Geology The newest of these, connected with the higher series of coal- measures, is well exhibited along the shores of the Forth, in Fifeshire, where they consist of basalt with olivine, amygdaloid, greenstone, wacke, and tuff. The Student's Elements of Geology These concretions often unite into irregular strata; and over very large tracts of country, the entire mass consists of a hard, but generally cavernous marly rock: some of the varieties might be called calcareous tuffs. Geological Observations on South America It intervenes between the base of the high cliff formed of the tuffs with Miocene shells and the sea-shore. The Student's Elements of Geology All the tuff is compact, and includes numerous fragments of lava; it appears like a subaqueous deposit. Volcanic Islands At different levels in the midst of these beds of tuff and lava are many old forest grounds. The Elements of Geology But at a later period, when a considerable thickness of sandstone and marl had accumulated, eruptions broke out, and lava and tuff were deposited, at some spots, alternately with the lacustrine strata. The Student's Elements of Geology In one place they rested on, and in another place were capped by, tuffs and girt-stones, apparently of submarine origin. Geological Observations on South America Cyclopean isles, beds of tuff and clay in. —, contorted strata in. The Student's Elements of Geology Two craters of tuff on this island are the only remaining ones which require any notice. Volcanic Islands Volcanic tuff and limestone of Madeira, the Canaries, and the Azores. The Student's Elements of Geology It is often columnar; and in one place I saw magnificent columns, each face twelve feet in width, with their interstices filled up with calcareous tuff. Geological Observations on South America These lavas are conformably associated with strata of breccia and of brown tuff containing lignite. Geological Observations on South America In the volcanic tuffs of this age are found not only fragments of limestone, shale, flinty slate, and sandstone, but also pieces of coal. The Student's Elements of Geology The upper part of this crater consists of strata of the altered tuff, with a semi-resinous fracture. Volcanic Islands To return to the two craters: one of them stands at the distance of a league from the coast, the intervening tract consisting of a calcareous tuff, apparently of submarine origin. Volcanic Islands The upper beds, which are between thirty and forty feet in thickness, are composed of a thinly stratified, fine-grained, harsh, friable, brown-coloured tuff, or peperino. Volcanic Islands When examining it in situ, I thought it was certainly a true porphyry, but my specimens now lead me to suspect that it possibly may be a metamorphosed tuff. Geological Observations on South America It will be seen in the following chapters that in the earth's crust there are volcanic tuffs of all ages, containing marine shells, which bear witness to eruptions at many successive geological periods. The Student's Elements of Geology Brattle Island is, I believe, the largest crater in the Archipelago composed of tuff; its interior diameter is nearly a nautical mile. Volcanic Islands It is unstratified, and is composed of compact tuff, in parts having the resin-like fracture. Volcanic Islands This upper tuff contains numerous pisolitic balls, about the size of small bullets, which differ from the surrounding matter, only in being slightly harder and finer grained. Volcanic Islands Bed 3, white, much indurated tuff, containing minute pebbles, broken crystals, and scales of mica, varies much in thickness. Geological Observations on South America They found certain rocks, for the most part without stratification, and of a peculiar mineral composition, to which they gave different names, such as basalt, greenstone, porphyry, trap tuff, and amygdaloid. The Student's Elements of Geology From these facts I think it is certain that the tuff must have flowed as mud. Volcanic Islands Since the specimens have become dry, it is rather more easy to distinguish the decomposed igneous rocks from the sedimentary tuffs. Volcanic Islands This ridge consists, as before remarked, of grey feldspathic lavas, and of red, brecciated, argillaceous tuffs, like the beds of the upper coloured series. Volcanic Islands The beds are obscurely separated from each other; they are sometimes parted by seams of tuff and layers of pebbles. Geological Observations on South America Such tuffs are sometimes bound together by a calcareous cement, and form a stone susceptible of a beautiful polish. The Student's Elements of Geology Within this same crater, strata of coarse tuff, chiefly composed of fragments of lava, abut, like a consolidated talus, against the inside walls. Volcanic Islands On the steep northern slope, I observed in several sections a much worn undulating surface of red tuff, covered by grey, decomposed, feldspathic lavas, with only a thin earthy layer interposed between them. Volcanic Islands Craters of tuff; inclination of their exterior diverging strata, and structure of their interior converging strata. Volcanic Islands The junction with the bed on which it rested, was ill defined; balls and masses of the feldspathic rock being enclosed in much altered tuff. Geological Observations on South America But even when little or no lime is present, there is a great tendency in the materials of ordinary tuffs to cohere together. The Student's Elements of Geology Its external sloping surface presented a curious appearance from the smoothness of the wide layers of tuff, which resembled a vast plastered floor. Volcanic Islands Concluding remarks on the craters of tuff, and on the breached condition of their southern sides. Volcanic Islands From the large quantity of these two substances, from the presence of rounded pebbles in the tuffs, and from the abundant amygdaloids, I cannot doubt that these basal volcanic strata flowed beneath the sea. Volcanic Islands Bed 10, a thick bed of rather bright green, indurated mudstone or tuff, with a concretionary nodular structure so strongly developed that the whole mass consists of balls. Geological Observations on South America Every geologist is aware how often silicified trees occur in volcanic tuffs, the perfect preservation of their internal structure showing that they have not decayed before the petrifying material was supplied. The Student's Elements of Geology Craters, basaltic, at Ascension. -form of, affected by the trade wind. -of elevation. -of tuff at Terceira. -of tuff at the Galapagos archipelago. -their breached state. -small basaltic at St. Jago. —at the Galapagos archipelago. Volcanic Islands The greater number of the hills, however, are composed of a quite white, friable stone, appearing like a trachytic tuff. Volcanic Islands These fragments project from the weathered surface, and perfectly resemble fragments embedded in a true sedimentary tuff. Volcanic Islands At a distance of between only two and three miles the green mudstones and white indurated tuffs are to a great extent replaced by red sandstone and black calcareous shaly rocks, alternating together. Geological Observations on South America To these conglomerates succeed argillaceous and calcareous marls and limestones, containing Lower Miocene shells and bones of mammalia, the higher beds of which sometimes alternate with volcanic tuff of contemporaneous origin. The Student's Elements of Geology Concretions in aqueous and igneous rocks compared. -in tuff. -of obsidian. Volcanic Islands Its bottom is occupied by a lake of brine, out of which some little crateriform hills of tuff rise. Volcanic Islands One of the officers gave me some fragments of shells, which he found embedded several hundred feet above the sea, in the tuff of two craters, distant from each other. Volcanic Islands Eighthly: white, much indurated, almost crystalline tuff, several hundred feet in thickness, including rounded grains of quartz and particles of green matter like that of bed Six. Geological Observations on South America These tuffs, and the associated trappean rocks, must not be compared to lava and scoriae which had cooled in the open air. The Student's Elements of Geology The successive sheets are either closely united together, or are separated from each other by beds of scoriaceous rock and of laminated tuff, frequently containing well-rounded fragments. Volcanic Islands Craters composed of a peculiar kind of tuff. Volcanic Islands These compact lavas alternate with tuffs, amygdaloids, and wacke, and in some places with coarse conglomerate. Volcanic Islands Professor Ehrenberg has examined this mudstone for me: he finds in it three already known microscopic organisms, enveloped in a fine-grained pumiceous tuff, which I shall have immediately to describe in detail. Geological Observations on South America In the tuff I found fragments of carboniferous shale and limestone, and intersecting veins of greenstone. The Student's Elements of Geology The chief part consists of red decomposing scoriae, associated with various kinds of tuff and yellow argillaceous beds, full of broken crystals, those of augite being particularly large. Volcanic Islands Island, segment of a small basaltic crater; fluidity and composition of its lava-streams, and of its ejected fragments.—Concluding remarks on the craters of tuff, and on the breached condition of their southern sides.— Volcanic Islands Some of the fibres are thickly covered with extremely minute spicula, occasionally aggregated into little tuffs; and hence they have a hairy appearance. Volcanic Islands |
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