Records of the Geological Survey of India, Volume 40, Parts 3-4Government of India, 1910 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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agglomeratic slate Aktash Alum Shale anticlinal appear Arialur Asnot Assam beds Bugti Hills calcareous carbonaceous shale Carboniferous Ceratites Chenji Chota Taukok clay coal Coal Shale coal-field Coal-measures conglomerate deposits Digboi Disang series Eishmakám fault fauna Fenestella Fixed carbon Ash fossiliferous fossils Geol Geological Survey glacier grey Gymnites horizon inches Kálábágh Kangra Kashmir Khrew Kichik Kumdan Kotki Kumaun Kushalgarh layers Lidar Lidar valley limestone locality Lower Siwaliks Lydekker Mallet matter Fixed carbon maunds Middle Siwaliks Middlemiss miles Moisture Volatile matter Mokokchung Naga Nari nummulitic occurs oil globules oil-bearing outcrop Panjal particles Pastannah Permo-Carboniferous Pilg PLATE probably quartzite right bank river rock Safrai valley Salt Range sample sand sandstone seam sediment Shale Coal shaly Shayok shora Silurian sivalensis Siwalik Hills snout specimens Spiti spur stream Surv Survey of India Tichak Tipam series trace Upper Silurian Volatile matter Fixed whilst
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Page 331 - type is derived from the organic matter of bituminous shales, and is probably of vegetable origin. (3) Petroleum of the Canadian type is derived from limestones, and is probably of animal origin.
Page 331 - Petroleum has been produced at normal rock temperatures (in American fields), and is not a product of destructive distillation of bituminous shales. (5) The stock of petroleum in the rocks is already practically complete.
Page 329 - For this purpose it is necessary that the decomposition of the organic bodies should have proceeded elsewhere than in the strata themselves and yet in such a place that the oil would be retained and collected until it was liberated upon the surface of
Page 324 - sediment renders it impossible for the oil to separate itself; the mixture of sediment and oil, being still of higher specific gravity than water, falls to the bottom and is deposited as a sedimentary deposit.
Page 320 - fatty matters of plants and animals, the nitrogenous portions of both being eliminated by bacterial action soon after the death of the organism.
Page 324 - The deposition of oil therefore is purely a matter of gravitation. The oil becomes mechanically mixed with the sediment, and the fineness of
Page 286 - occurs at two horizons, one at the top and the other at the base of the
Page 238 - lower member of the volcanic series. That is to say I regard it as an accumulation of clastic and sedimentary material formed round ruptured portions of the
Page 323 - that the oil was merely mechanically mixed with the sediment and that it was the small size of the shale particles that made it impossible for the globules of oil to escape between them and
Page 238 - crust which eventually became foci for the extrusion of basic lava flows. At the same time the alternative hypothesis should not be lost sight of, nor the possibility that the formation was a joint product of both sets of activities combined with ordinary sub-aerial sedimentation.