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 148
... alteration products of olivines and / or pyroxenes . Pseudomorphic textures are however completely absent . The talc - serpentine association shows that the hydrothermal alteration took place at around 400 ° C ( Fyfe , in Fyfe , Turner ...
... alteration products of olivines and / or pyroxenes . Pseudomorphic textures are however completely absent . The talc - serpentine association shows that the hydrothermal alteration took place at around 400 ° C ( Fyfe , in Fyfe , Turner ...
Page 160
Geological Survey of India. ( ii ) The alteration of chromite and replacement by iron oxides was a silent process , as revealed by pseudomorphs of hematite / - goethite after chromite ( Pl . 22 , fig . 2 ) . ( iii ) The alteration took ...
Geological Survey of India. ( ii ) The alteration of chromite and replacement by iron oxides was a silent process , as revealed by pseudomorphs of hematite / - goethite after chromite ( Pl . 22 , fig . 2 ) . ( iii ) The alteration took ...
Page 215
... alteration product leucoxene , scattered errati- cally throughout . The pelitic band is distinguished by foliae composed of parallelly arranged long , lepidoblastic flakes of muscovite , and alternating thin bands of elongated quartz ...
... alteration product leucoxene , scattered errati- cally throughout . The pelitic band is distinguished by foliae composed of parallelly arranged long , lepidoblastic flakes of muscovite , and alternating thin bands of elongated quartz ...
Contents
Son Valley in Mirzapur district U P by F Ahmad | 1 |
Some Geological factors influencing the behaviour of | 42 |
The Snout of the Machoi Glacier Kashmir by | 51 |
Copyright | |
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acid actinolite analyses Auden basalt bauxite beds Bilaspur boulders breccia brown cent by weight chemical chert chrome-rich suite chromite chromite deposits clay colour composition concentration conglomerate crystallisation crystals district dolerite dumortierite east epidote exposed faults felspar fine-grained flows folded formation formed fossils fraction friable garnet Geol Geological Survey Ghumarwin glacier grains granite grey Haritalyangar hill horizon igneous ilmenite indicated Konal Kosi laterite layers limestone Lower magma magnetite mapping material metres Middle Siwalik minerals multiple dykes multiple intrusions Mussoorie occur orthopyroxenite overlying Oxide P₂O pebbles pelitic phosphate phosphorus phyllites plagioclase porcellanites Pradesh present 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 types ultrabasic ultrabasic rocks unconformity Upper valley veins Vempalle Vindhyan system volcanic wall rocks zone