Records of the Geological Survey of India, Volume 112, Part 7The Survey, 1982 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 38
... sericite are seen . A few grains of magnetite , sphene , apatite , zoisite and epidote are present as accessory . The granite 600 m southeast of Bhotia shows oligoclase , orthoclase and microcline . Oligoclase shows lamellar twinning on ...
... sericite are seen . A few grains of magnetite , sphene , apatite , zoisite and epidote are present as accessory . The granite 600 m southeast of Bhotia shows oligoclase , orthoclase and microcline . Oligoclase shows lamellar twinning on ...
Page 54
... sericite , muscovite and altered felspars . Iron oxide is abundant , either coating the grain boundaries of quartz or in cubic form . Blue tourmaline and minor zircon are present . The conglomerate bed intercalated with this member is ...
... sericite , muscovite and altered felspars . Iron oxide is abundant , either coating the grain boundaries of quartz or in cubic form . Blue tourmaline and minor zircon are present . The conglomerate bed intercalated with this member is ...
Page 56
... sericite rock ) , mus- covite , sericite and felspars . Sphene and perfectly rounded and spherical grains of tourmaline are common . The rock is strained and crushed at places . Potash felspar is mostly altered to sericite and muscovite ...
... sericite rock ) , mus- covite , sericite and felspars . Sphene and perfectly rounded and spherical grains of tourmaline are common . The rock is strained and crushed at places . Potash felspar is mostly altered to sericite and muscovite ...
Contents
Coastal geomorphology of Bhavnagar Gujarat India O | 1 |
Sediments of river Mendhaan admixture of humid and arid epoch | 11 |
CONTENTS | 16 |
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Ajabgarh Group albite Alwar Group Aravalli Aund axial Banded Gneissic Complex Bari Sadri basin Bayana beds Berach Granite Bhadesar Bhavnagar biotite Buchara Bundelkhand Gneiss calcite chert chlorite colour conglomerate country rocks cross-bedding Delhi Delhi Supergroup deposits district dolomite east eastern emplacement epidote facies fault felsite felspar felspathic ferruginous folds foliation fractures Geol Geological Survey geosynclinal cycle Gneiss grade grains of quartz granite porphyry grey Gujarat hornblende intrusive Jahaj Jaipur Jogipura Formation Khardeola Khareri Khetri Kushalgarh Kutch limestone magmatic matrix metamorphism metasediments mica schist microcline migmatites mineralisation minerals muscovite NE-SW Nithar northeastern Rajasthan occur oligoclase oolites orthoclase pebbles pegmatite phase phenoclasts phyllites places Pre-Aravalli pre-Delhi quartz quartz felsite quartzite Raialo Rajasthan ripple marks Salenia sand sandstone schist sedimentary sedimentation seen sequence sericite shale shows siliceous Sita slates specimen stratigraphic Supergroup surface Surv Survey of India tectonic terrace thick trend unconformity veins Vindhyan western zone