英语词汇“pitchstone”造句的方法、技巧、例句及翻译-英语例句辞典

Such media are the volcanic rocks when they are rapidly cooled, producing various kinds of pitchstone, obsidian, &c. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z

There are numerous varieties of lava, such as basalt, obsidian, pitchstone, pearlstone, trachyte, &c.; some are heavy compact rocks, others are light and porous. Geology 2011-02-20T03:00:12.660Z

The walls, or banks, of the channel have been denuded away, thus converting the pitchstone casting into a projecting wall of rock. Volcanoes: Past and Present

The lavas comprise dark pitchstone, resembling that at Kirk Yetholm, and porphyritic and amygdaloidal andesites and basalts. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago"

If pumice was to be found anywhere in Scotland, we might a priori expect to find it in connection with by far the largest mass of pitchstone in the kingdom. The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland

The whole northern and lower portion of the island had vanished, except an isolated pitchstone rock, ten yards square, and projecting out of the ocean with deep water all around it. Complete Story of the San Francisco Horror

The characteristic rock is a black vitreous trachyte resembling pitchstone, but anhydrous. The Andes and the Amazon Across the Continent of South America

We were stopped by a small circular wall of porphyritic lava, with a base of pitchstone, which concealed from us the view of the crater.* Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1

Their flanks were blotched with a livid nitrous efflorescence, with flaring sulphur, unhealthy verdure of pitchstone, streaks of arsenical vermilion; their beds—a frantic maze of boulders. South Wind

This pitchstone, as well as some purple claystone porphyry, certainly flowed in the form of streams. Geological Observations on South America

In another part of the island, there are layers of pearlstone and pitchstone, which in many respects resemble those of Ascension. Volcanic Islands

I strongly suspect the underlying granite has altered such beds into this pitchstone. More Letters of Charles Darwin — Volume 1

Some of the layers of the black siliceous slate contained irregular angular fragments of imperfect pitchstone, which I believe, as in the Uspallata range, has originated in a metamorphic process. Geological Observations on South America

I have much difficulty in believing that this thin layer of pitchstone flowed as lava. Geological Observations on South America

There is also much imperfect rubbly pitchstone, with the interstices charged with powdery carbonate of lime apparently of contemporaneous origin. Geological Observations on South America

The fragments of scoriae, embedded in the crystalline calcareous basis, are of a jet black colour, with a glossy fracture like pitchstone. Volcanic Islands

The lavas are curious from abounding in, or rather being in parts composed of pitchstone. More Letters of Charles Darwin — Volume 1

In some of the jaspery layers, and in some of the black siliceous slaty bands, there were irregular seams of imperfect pitchstone, undoubtedly of metamorphic origin, and other seams of brown, crystalline limestone. Geological Observations on South America

单词	pitchstone
例句	pitchstone Such media are the volcanic rocks when they are rapidly cooled, producing various kinds of pitchstone, obsidian, &c. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z There are numerous varieties of lava, such as basalt, obsidian, pitchstone, pearlstone, trachyte, &c.; some are heavy compact rocks, others are light and porous. Geology 2011-02-20T03:00:12.660Z The walls, or banks, of the channel have been denuded away, thus converting the pitchstone casting into a projecting wall of rock. Volcanoes: Past and Present The lavas comprise dark pitchstone, resembling that at Kirk Yetholm, and porphyritic and amygdaloidal andesites and basalts. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" If pumice was to be found anywhere in Scotland, we might a priori expect to find it in connection with by far the largest mass of pitchstone in the kingdom. The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland The whole northern and lower portion of the island had vanished, except an isolated pitchstone rock, ten yards square, and projecting out of the ocean with deep water all around it. Complete Story of the San Francisco Horror The characteristic rock is a black vitreous trachyte resembling pitchstone, but anhydrous. The Andes and the Amazon Across the Continent of South America We were stopped by a small circular wall of porphyritic lava, with a base of pitchstone, which concealed from us the view of the crater.* Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 Their flanks were blotched with a livid nitrous efflorescence, with flaring sulphur, unhealthy verdure of pitchstone, streaks of arsenical vermilion; their beds—a frantic maze of boulders. South Wind This pitchstone, as well as some purple claystone porphyry, certainly flowed in the form of streams. Geological Observations on South America In another part of the island, there are layers of pearlstone and pitchstone, which in many respects resemble those of Ascension. Volcanic Islands I strongly suspect the underlying granite has altered such beds into this pitchstone. More Letters of Charles Darwin — Volume 1 Some of the layers of the black siliceous slate contained irregular angular fragments of imperfect pitchstone, which I believe, as in the Uspallata range, has originated in a metamorphic process. Geological Observations on South America I have much difficulty in believing that this thin layer of pitchstone flowed as lava. Geological Observations on South America There is also much imperfect rubbly pitchstone, with the interstices charged with powdery carbonate of lime apparently of contemporaneous origin. Geological Observations on South America The fragments of scoriae, embedded in the crystalline calcareous basis, are of a jet black colour, with a glossy fracture like pitchstone. Volcanic Islands The lavas are curious from abounding in, or rather being in parts composed of pitchstone. More Letters of Charles Darwin — Volume 1 In some of the jaspery layers, and in some of the black siliceous slaty bands, there were irregular seams of imperfect pitchstone, undoubtedly of metamorphic origin, and other seams of brown, crystalline limestone. Geological Observations on South America
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