Records of the Geological Survey of India, Volume 112, Parts 2-5Government of India, 1979 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 78
... nature ; minera- logically composed essentially of calcite grains embedded In a fine - grained matrix of calcareous material . The rock is highly fractured . Irregular cracks and fractures are filled up with fine - grained calcite . The ...
... nature ; minera- logically composed essentially of calcite grains embedded In a fine - grained matrix of calcareous material . The rock is highly fractured . Irregular cracks and fractures are filled up with fine - grained calcite . The ...
Page 81
... nature and varies in thickness from 1-10 m . The nature of pebbles varies from place to place . Near Pukhpur the dominant pebbles are those of gabbro , chert while those exposed near Zipu , Weshello and Reguri are those of dominantly ...
... nature and varies in thickness from 1-10 m . The nature of pebbles varies from place to place . Near Pukhpur the dominant pebbles are those of gabbro , chert while those exposed near Zipu , Weshello and Reguri are those of dominantly ...
Page 93
... nature of the magma giving rise to these rocks . Plagioclase , which occurs as a minor intercumulus phase at the top of the ultramafic cumulates , becomes , the dominant mode in the mafic members ; this is suggested by the sudden ...
... nature of the magma giving rise to these rocks . Plagioclase , which occurs as a minor intercumulus phase at the top of the ultramafic cumulates , becomes , the dominant mode in the mafic members ; this is suggested by the sudden ...
Contents
Stratigraphic position of the Jungel Group of Central India | 7 |
Palaeontological Data System in the Geological Survey of India | 13 |
Chemical Behavior of Chromian Spinels from Ultrabasic Nodules | 21 |
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Arunachal Assam assemblage axial bands Barail barytes basaltic basin beds belt borehole Chalk Hills chert chlorite chromite clay clinopyroxene coal coalfield colour conglomerate Cretaceous Cuddapah deposits depth Dhanjori diamictite dipping district dolerite dunite dykes east Eastern Eocene Eurydesma facies fault fauna folds Formation fossil fractures Gangpur garnet Garo Hills Geol Geological Survey gneisses Gondwana grains granite Himalaya hornblende India indicate Jaintia Jungel laterite limestone lower magnetite Manipur Meghalaya metamorphic metres mineralisation minerals Miocene Naga Hills Nagaland occur olivine ophiolite outcrops peridotite phyllite plagioclase Plate Pradesh present pyroxene quartz quartzite range recorded region rocks samples sand sandstone schist seam sedimentary sediments sequence shale shear spinels stratigraphic structures studies sulphide Surma Surv Survey of India tectonic Tertiary texture thickness tion traverse trend ultrabasic ultramafic Unconformity Unpublished GSI Report Upper upto uranium veins volcanics zone