Records of the Geological Survey of India, Volume 86, Parts 2-4Geological Survey of India, 1955 - Earthquakes |
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Page 406
... plagioclase with a variable proportion of clinozoisite , corundum , garnet and edenite , while the mafic layers contain a high proportion of amphiboles . The leucocratic layers simulate marbles in appearance , in that they have a ...
... plagioclase with a variable proportion of clinozoisite , corundum , garnet and edenite , while the mafic layers contain a high proportion of amphiboles . The leucocratic layers simulate marbles in appearance , in that they have a ...
Page 423
... plagioclase .-- The twinning of plagioclase has been studied by Gorai ( 1951 ) who concludes ( p . 896 ) that plagioclase with high relative frequency of Carlsbad and albite - Carlsbad twinning is connected with the crystallization of ...
... plagioclase .-- The twinning of plagioclase has been studied by Gorai ( 1951 ) who concludes ( p . 896 ) that plagioclase with high relative frequency of Carlsbad and albite - Carlsbad twinning is connected with the crystallization of ...
Page 426
... plagioclase AbsoAnso and 20 per- cent . diopside with 4 percent . water will be liquid at about 1230 ° C and that the liquidus for the cotectic will be about 1120 ° C with a ratio of about 70 percent . plagioclase Abs . Anso to 30 ...
... plagioclase AbsoAnso and 20 per- cent . diopside with 4 percent . water will be liquid at about 1230 ° C and that the liquidus for the cotectic will be about 1120 ° C with a ratio of about 70 percent . plagioclase Abs . Anso to 30 ...
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