Records of the Geological Survey of India, Volume 99Geological Survey of India, 1972 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 10
... quartz are found in increasing order of abundance in the rock types exposed in the Ghanpur area . In addition to these , veins of aplite and pegmatite have also been recorded in the gneisses mapped . The veins of quartz are noticed in ...
... quartz are found in increasing order of abundance in the rock types exposed in the Ghanpur area . In addition to these , veins of aplite and pegmatite have also been recorded in the gneisses mapped . The veins of quartz are noticed in ...
Page 70
... quartz veins which are deformed . The slate and the lower part of chlorite - sericite - schist represent the chlorite zone ( Pl . 22 ) . Biotite zone is represented by the upper part of chlorite - sericite - schist and golden silvery ...
... quartz veins which are deformed . The slate and the lower part of chlorite - sericite - schist represent the chlorite zone ( Pl . 22 ) . Biotite zone is represented by the upper part of chlorite - sericite - schist and golden silvery ...
Page 71
... quartz . Orthoclase , albite and microcline are also present in small quantities . Quartz shows undulose extinction . Apatite and iron - ore occur as accessory minerals . Carbonaceous mica - schist : Though this formation indicates the ...
... quartz . Orthoclase , albite and microcline are also present in small quantities . Quartz shows undulose extinction . Apatite and iron - ore occur as accessory minerals . Carbonaceous mica - schist : Though this formation indicates the ...
Contents
VOLUME 99 PART | 1 |
Observations on the Siwalik System of India | 17 |
Microflora of the Nari Series of Kutch | 27 |
Copyright | |
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Common terms and phrases
assemblage bands Barakar Barren Measures basin beds biotite boulder carbonaceous cells Chinji chlorite coal seams coarse Collenia colour conglomerate Conophyton Daling series Damuda Darjeeling Darjeeling gneiss deposition developed Dhokpathan dolerite dykes Eocene epidote facies faults fauna felspar ferruginous folds foliation foraminifera formation forms fossil G.S.I. Type Geol GEOLOGICAL SURVEY Ghanpur area Giridih glacier gneisses Gondwana grained granites grey groundwater Haritalyangar Hipparion horizon INDIA Records indicate Jour Kaphni Karanpura lamination lamprophyres lenses limestone lithological Lower Gondwana Makrera metamorphism microns migmatites mineral Miocene moraine Nagri occur olivine overlying Panchet pebbly peridotite perithallus plagioclase planes Plate Pliocene quartz quartzites Raniganj Raniganj coalfield reservoir river rocks sandstone Sastry schist sections sediments shales siltstone Siwalik Siwalik system slates species spores stage stratigraphic stromatolites structures Surv SURVEY OF INDIA Talchir Tatrot thick thrust tourmaline upto Uttattur group veins vitrinites water table