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 215
... band is distinguished by foliae composed of parallelly arranged long , lepidoblastic flakes of muscovite , and alternating thin bands of elongated quartz grains . Muscovite is more in this portion of the rock compared to the psammitic band ...
... band is distinguished by foliae composed of parallelly arranged long , lepidoblastic flakes of muscovite , and alternating thin bands of elongated quartz grains . Muscovite is more in this portion of the rock compared to the psammitic band ...
Page 216
... band contained no coarser material , it was not sieved further and was taken directly for heavy mineral separation ... band Total wt . of materials minerals . Wt . of heavy Percentage of heavy minerals Total wt . of materials . Psammitic ...
... band contained no coarser material , it was not sieved further and was taken directly for heavy mineral separation ... band Total wt . of materials minerals . Wt . of heavy Percentage of heavy minerals Total wt . of materials . Psammitic ...
Page 217
... band contains greater amount of iron - ore . In the pelitic band , the percentage of ilmenite decreases with the decrease in the mesh size ( Pl . 30 ) . In the psammitic band such variations have not been observed and bulk ( nearly 46 ...
... band contains greater amount of iron - ore . In the pelitic band , the percentage of ilmenite decreases with the decrease in the mesh size ( Pl . 30 ) . In the psammitic band such variations have not been observed and bulk ( nearly 46 ...
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