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 37
... varies from 20 to 50 % ; in some cases even 65-70 % have been found . Ferromagnesian minerals are generally scanty varying from 5 to 15 % and comprise biotite , its alteration product of chlorite , sometimes hornblende , altering to ...
... varies from 20 to 50 % ; in some cases even 65-70 % have been found . Ferromagnesian minerals are generally scanty varying from 5 to 15 % and comprise biotite , its alteration product of chlorite , sometimes hornblende , altering to ...
Page 50
... varies from very fine to 5 mm and rarely upto 3 cm . Bigger and irregular vesicles are observed in flows associated with ... varying scales , constitute the youngest volcanic products . Two types of flows have been recognised in this ...
... varies from very fine to 5 mm and rarely upto 3 cm . Bigger and irregular vesicles are observed in flows associated with ... varying scales , constitute the youngest volcanic products . Two types of flows have been recognised in this ...
Page 85
... varying scales . The best development is , however , shown in the schistose horizons . The quartz - mica schist present in the area west of Mandawar , depicts the mesoscopic FULL SIZE Fig . 1. Small scale open fold with low plunge ...
... varying scales . The best development is , however , shown in the schistose horizons . The quartz - mica schist present in the area west of Mandawar , depicts the mesoscopic FULL SIZE Fig . 1. Small scale open fold with low plunge ...
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