Records of the Geological Survey of India, Volume 86, Parts 2-4Geological Survey of India, 1955 - Earthquakes |
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Page 421
... origin of certain Norwegian anorthositic rocks 429 Partial melting origin for gabbroic - anorthositic magma with aid of H.O SUMMARY . 429 430 REFERENCES 430 ABSTRACT A review is presented of studies published within the last decade or ...
... origin of certain Norwegian anorthositic rocks 429 Partial melting origin for gabbroic - anorthositic magma with aid of H.O SUMMARY . 429 430 REFERENCES 430 ABSTRACT A review is presented of studies published within the last decade or ...
Page 429
... origin of certain anorthositic series of rocks in Norway . He con- cludes that part of the anorthosite is of magmatic origin and is derived from basaltic magma by assimilation of pelitic sediments in huge quanti- ties . This is inferred ...
... origin of certain anorthositic series of rocks in Norway . He con- cludes that part of the anorthosite is of magmatic origin and is derived from basaltic magma by assimilation of pelitic sediments in huge quanti- ties . This is inferred ...
Page 430
... origin of anorthositic rocks is reviewed . A number of geologists are currently advocating an origin of some of our great anorthosite masses by metasomatism or by metamorphic differentiation . The new evidence of phase petrology ...
... origin of anorthositic rocks is reviewed . A number of geologists are currently advocating an origin of some of our great anorthosite masses by metasomatism or by metamorphic differentiation . The new evidence of phase petrology ...
Contents
OF | 310 |
MINERALS PRODUCED IN THE INDIAN UNION | 316 |
INTRODUCTION | 433 |
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actinolite Adirondack Ajmer-Merwara alumina Amjor anorthosite anorthositic rocks artesian Australia Barakars Basin beds Bihar Bijaigarh shale Bijawar biotite-schists BORE HOLE boulders calcite cent chemical chloritoid chromite coal streaks coalfield composition Conglomerate crystals Dalipnagar deposits depth district dolomite emerald exported faulting feet felspar fire clay flow formation Geol Geological Survey glaciation gneisses Gondwana gypsum ice cap ilmenite India iron Kaliguman kyanite lavas limestone Madhya Pradesh Madras magma magnetic mineral magnetite marl meteorite mica miles mines Mysore nala occurs outcrop output paleomagnetic pegmatites peridotite Permian plagioclase present production pyrite quantity quartz quartzites Rajasthan Rampur Rampur seam remanent magnetism reverse remanent magnetism samples sandstone schists sediments Series shale Shale with coal Shaly Shaly coal Shaly sandstone Singhbhum Sittampundi Complex Survey of India TABLE temperature thickness tillite tion titaniferous magnetite tons valued Triassic unconformity Upper Kaimur sandstone veins Vindhyan