Records of the Geological Survey of India, Volume 123, Part 7The Survey, 1990 - 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 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 29
... grained and displays grade bedding . The maxium thickness of this rock unit is 8 m ( Fig . 19 ) . A. C. Banerjee , A ... grained , sparsely porphyritic flows . The plagioclase and pyroxene phenocrysts are much smaller in size in contrast ...
... grained and displays grade bedding . The maxium thickness of this rock unit is 8 m ( Fig . 19 ) . A. C. Banerjee , A ... grained , sparsely porphyritic flows . The plagioclase and pyroxene phenocrysts are much smaller in size in contrast ...
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 ...
Contents
rock sequence | 1 |
Mangalwar Projec | 3 |
Geological mapping of the Aravalli Supergroup and the associated granitic rocks in Panchmahals district Gujarat | 7 |
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Common terms and phrases
aeolian Agucha Alluvium amphibolite amygdules anomalies Aravalli augite axial bands BASALT BASALT FLOW basin bedding belt Bethunmi biotite boreholes calcareous carbonate characterised chert clinopyroxene comprises conglomerate contains Deccan Traps deposits depth dolerite dolerite dykes dolomite drilling dunes eastern exploration exposed felsic Flow-II fluvial folds Formation geochemical Geological map geophysical surveys gneiss gossan granite grey Gujarat Hindoli INDEX indicated intersected intertrappean intruded Jahazpur Kalabar kmĀ² was mapped Magnetic Mangalwar Complex marble massive sulphide metamorphism metasediments mica schist migmatitic Miliolitic Limestone NE-SW NNE-SSW North Sindesar Ridge occur older olivine opaques overlying Pb-Zn pegmatite phase phenocrysts phyllite plagioclase porphyritic quartz quartz veins quartzite Rajasthan Rann Clay regional rock types samples sandstone Sawar scale schist sequence shale shear zone silt Sindesar Ridge block Sirohi district Sirohi Group skarns stratigraphic strike length structures Surendranagar texture thickness tion toposheet trending tuffaceous Udaipur UDAIPUR DISTRICT unconformably unit volcaniclastic volcanics Wadhwan western