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" ... bitumen is solid and cold near the shores, but gradually increases in temperature and softness towards the centre, where it is boiling. The solidified bitumen appears as if it had cooled as the surface boiled in large bubbles. The ascent to the lake... "
A System of Mineralogy: Comprising the Most Recent Discoveries, Including ... - Seite 367
von James Dwight Dana - 1854
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A System of Mineralogy: Comprising the Most Recent Discoveries

James Dwight Dana - 1844 - 652 Seiten
...mile, Is covered with the hardened pitch, on which trees and vegetation flourish, and here and there about Point La Braye the masses of pitch look like black rocks among the foliage. Petroleum is met with in many parts of the United States. Kenhawa in Virginia, Scotsville, Ky., Duck...
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A System of Mineralogy: Comprising the Most Recent Discoveries: Including ...

James Dwight Dana - 1854 - 858 Seiten
...surface boiled in large bubbles. The ascent to the lake from the sea, a distance of three quarters of a mile, is covered with a hardened pitch, on which trees...of Apcheron, on the western shore of the Caspian, naphtha rises in vapor through a marly soil, and is collected by sinking pits several y^ards in depth,...
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A System of Mineralogy: Comprising the Most Recent Discoveries: Including ...

James Dwight Dana - 1854 - 864 Seiten
...surface boiled in large bubbles. The ascent to the lake from the sea, a distance of three quarters of a mile, is covered with a hardened pitch, on which trees...look like black rocks among the foliage. The lake IB underlaid by a bed of mineral coal, (Manross). In the peninsula of Apcheron, on the western shore...
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Manual of Mineralogy ...

J.D. Dana - 1855 - 440 Seiten
...mile, is covered with the hardened pitch, on which trees and vegetation flourish, and here and there about Point La Braye, the masses of pitch look like black rocks among the foliage. Large deposits of asphaltum occur in sandstone in Albania. It is also found in Derbyshire, and with...
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Ure's Dictionary of Arts, Manufactures, and Mines: Containing a Clear ...

Andrew Ure - 1860 - 972 Seiten
...surface boiled, in large bubbles. The ascent to the lake from the sea, a distance of threequarters of a -mile, is covered with a hardened pitch, on which...is underlaid by a bed of mineral coal. — Manross, quoted by Dana. The Earl of Dundonald remarks, that vegetation contiguous to the lake of Trinidad is...
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A Glossary of Mineralogy

Henry William Bristow - 1861 - 510 Seiten
...surface boiled, in large bubbles. The ascent to the lake from the sea, a distance of threequarters of a mile, is covered with a hardened pitch, on which trees...foliage. The lake is underlaid by a bed of mineral coal." (Mitnross, quoted by Dana). The Pitch Lake of Trinidad, according to Mr. GP Wall, yields three kinds...
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A Glossary of Mineralogy

Henry William Bristow - 1861 - 476 Seiten
...surface boiled, in large bubbles. The ascent to the lake from the sea, a distance of threequarters of a mile, is covered with a hardened pitch, on which trees and vegetables flourish; and about Point La Brave, the masses of pitch look like black rocks among the foliage. The lake is underlaid by a bed...
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A Preliminary Report of the Geological and Agricultural Survey of Texas

Geological and Agricultural Survey of Texas, Samuel Botsford Buckley - 1866 - 94 Seiten
...bubbles. The ascent to the lake from the s,a, a distance of three-fourths of a mile, is covered with hardened pitch, on which -trees and vegetables flourish, and about Point La Bra,ye th« masses of pitch look., like black recks asncng .the foliage. The lake is underlaid by a bed of...
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A Preliminary Report of the Geological and Agricultural Survey of Texas

Geological and Agricultural Survey of Texas, Samuel Botsford Buckley - 1866 - 100 Seiten
...bubbles. The ascent to the lake from the sea, a distance of three-fourths of a mile, is covered with hardened pitch, on which trees and vegetables flourish, and about Point La Brave the masses of pitch look like black rocks among the foliage. The lake is underlaid by a bed of...
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A dictionary of arts, manufactures, and mines, Band 1

Andrew Ure - 1867 - 1006 Seiten
...surface boiled, in large bubbles. The ascent to the lake from the sea, a distance of threequarters of a mile, is covered with a hardened pitch, on which trees...is underlaid by a bed of mineral coal. — Manross, quoted by Dana. The Earl of Dnndonald remarks, that vegetation contiguous to the lake of Trinidad is...
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