Records of the Geological Survey of India, Volume 96Geological Survey of India, 1971 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 192
... dolerite ; in one dyke , the three members are chilled against one another , ( 2 ) both the earlier and later veins have the same strike , and ( 3 ) the thin sections especially of the chilled margins of the dolerite , are similar to ...
... dolerite ; in one dyke , the three members are chilled against one another , ( 2 ) both the earlier and later veins have the same strike , and ( 3 ) the thin sections especially of the chilled margins of the dolerite , are similar to ...
Page 193
... dolerite , alternated by three zones , each of which consists of 50 or more thin ( 5 to 80 cm . ) veins of porphyritic basalt . The dolerite bands are conspicuously free from basalt veins . In the north , however , a zone of basalt is ...
... dolerite , alternated by three zones , each of which consists of 50 or more thin ( 5 to 80 cm . ) veins of porphyritic basalt . The dolerite bands are conspicuously free from basalt veins . In the north , however , a zone of basalt is ...
Page 210
... dolerite . The upper contact is marked by a thin band of fine - grained leucocratic rock comprising almost entirely of quartz with a few grains of felspar , mica and pyroxene . Dykes A few dolerite dykes are seen in the Tammarajupalle ...
... dolerite . The upper contact is marked by a thin band of fine - grained leucocratic rock comprising almost entirely of quartz with a few grains of felspar , mica and pyroxene . Dykes A few dolerite dykes are seen in the Tammarajupalle ...
Contents
Geology of the Vindhyan system in the Eastern part of | 1 |
Some Geological factors influencing the behaviour of | 42 |
5560 | 55 |
Copyright | |
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acid analyses Auden band basalt bauxite beds Bilaspur bodies boulders breccia brown carbonaceous chemical chert chrome-rich suite chromite chromite deposits clay colour composition concentration conglomerate crystallisation crystals district dolerite dumortierite east epidote exposed faults felspar fertilisers fine-grained flows folded formation fossils friable garnet Geol Geological Survey Ghumarwin glacier grains granite grey Haritalyangar hill horizon igneous ilmenite indicated iron Konal Kosi laterite layers limestone limonitised Lower magma magnetite mapping margins material metres Middle Siwalik minerals multiple dykes multiple intrusions Mussoorie nala nodules occur orthopyroxenite overlying Oxide P₂O pebbles pelitic phosphate phosphorus phyllites plagioclase porcellanites Pradesh present psammitic pumicite quartz quartzites river rock phosphate samples sandstones scarp sediments seen shales silica silicified Siwalik Siwalik rocks snout soil structure Sukinda Surv Survey of India syncline TABLE Tadpatri thick thin tourmaline ultrabasic ultrabasic rocks unconformity Upper valley veins Vempalle Vindhyan system volcanic