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 20
... colour , soft , friable and coarse grained . The shales are generally sandy , carbona- ceous and contain plant ... coloured sandstone . SYSTEMATIC DESCRIPTION FILICALES Genus - Cladophlebis Brongniart Cladophlebis kakadbhitensis sp . nov ...
... colour , soft , friable and coarse grained . The shales are generally sandy , carbona- ceous and contain plant ... coloured sandstone . SYSTEMATIC DESCRIPTION FILICALES Genus - Cladophlebis Brongniart Cladophlebis kakadbhitensis sp . nov ...
Page 33
... colour but at places it is also steel grey or purple . It is very fine grained . A thin section of limestone from near Mandaldah shows a mosaic of finely crystalline calcite grains . Limestones occurring about a kilometre northwest of ...
... colour but at places it is also steel grey or purple . It is very fine grained . A thin section of limestone from near Mandaldah shows a mosaic of finely crystalline calcite grains . Limestones occurring about a kilometre northwest of ...
Page 37
... colours ( clino- chlore ) . Some chlorite give inky blue anomalous interference colours ( penninite ) . Hornblende is present in a few cases , which is green in colour and pleochroic from yellowish green to dark green . The extinction ...
... colours ( clino- chlore ) . Some chlorite give inky blue anomalous interference colours ( penninite ) . Hornblende is present in a few cases , which is green in colour and pleochroic from yellowish green to dark green . The extinction ...
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