Records of the Geological Survey of India, Volume 123, Parts 7-8Government of India, 1988 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 24
... grained aphanitic to porphyritic , at places . Flow - II is fine to medium grained , grey to greenish grey megaporphyritic basalt with large- sized ( 1cm to 3 cm ) phenocrysts of plagioclase which often show glomeroporphyritic texture ...
... grained aphanitic to porphyritic , at places . Flow - II is fine to medium grained , grey to greenish grey megaporphyritic basalt with large- sized ( 1cm to 3 cm ) phenocrysts of plagioclase which often show glomeroporphyritic texture ...
Page 117
... grained granite . In the apical portion , the pluton has a brecciated look which can be described as migmatite with immo- bile component as phyllite and coarse grained granite being profusely intruded by the porphyry granite and related ...
... grained granite . In the apical portion , the pluton has a brecciated look which can be described as migmatite with immo- bile component as phyllite and coarse grained granite being profusely intruded by the porphyry granite and related ...
Page 63
... grained granite and medium grained granite and augen gneiss . The formation has a wide range of occurrence in the area . Riund Digara Formation : The formation comprises diorite and associated with medium grained and rarely syenite ...
... grained granite and medium grained granite and augen gneiss . The formation has a wide range of occurrence in the area . Riund Digara Formation : The formation comprises diorite and associated with medium grained and rarely syenite ...
Contents
GEOLOGICAL MAPPING Page 1 Highgrade sequence and associated rocks of the Sandmata Complex 1 | 1 |
Mangalwar Project 3 | 3 |
Geological mapping of the Aravalli Supergroup and the associated granitic rocks in Panchmahals district Gujarat 7 | 7 |
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Common terms and phrases
aeolian alluvial Alluvium amphibolite bands basalt basin bedrock belt biotite block boreholes calcareous CHAMOLI DISTRICT channel clay comprises conglomerate covered crystalline deposits depth dipping DISTRICT dolomite downstream dunes dykes excavation exposed fault field season flood plain flows fluvial folds foliation Formation fossils foundation grade Ganga geochemical GEOENVIRONMENTAL geological mapping Geology Division geomorphological geophysical geotechnical gneiss grained granite Granitoid grey Group HIMACHAL PRADESH Himalaya HYDEL indicated intrusive JAMMU joints KASHMIR kmē Krol Ladakh limestone lineament located Mangalwar metre mineral mineralisation nala Older Alluvium pegmatite phyllite porphyritic power house Proterozoic quartz quartz veins quartzite Quaternary Rajasthan regional river rocks samples sand sandstone scale schist sediments sequence shale shear zone silt siltstone Sirohi district Siwalik skarns slate slope spillway sq.km STAGE GEOLOGICAL INVESTIGATION structural studies sulphide surface tectonic terrace thick Thrust toposheet traverse trending tunnel Udaipur district Upper upto UTTAR PRADESH valley Vindhyan volcanics