Records of the Geological Survey of India, Volume 100Government of India, 1972 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 30
... pegmatite veins vary- ing in size from small stringers to more than 1,000 m . in length and from a few centimetres to 3,000 m . in width . Except for a few with central quartz - cores the pegmatites are generally homo- geneous . Mica ...
... pegmatite veins vary- ing in size from small stringers to more than 1,000 m . in length and from a few centimetres to 3,000 m . in width . Except for a few with central quartz - cores the pegmatites are generally homo- geneous . Mica ...
Page 168
... pegmatite veins between Bhujwa ( 24 ° 35 ′ : 85 ° 48 ′ ) and Kunjia mica mine of Semritanr area . Kerala A. Ernakulam district . - According to G. B. Nair and T. Selvan , the pegmatite dyke exposed in a well near Cheradi , 1.5 km ...
... pegmatite veins between Bhujwa ( 24 ° 35 ′ : 85 ° 48 ′ ) and Kunjia mica mine of Semritanr area . Kerala A. Ernakulam district . - According to G. B. Nair and T. Selvan , the pegmatite dyke exposed in a well near Cheradi , 1.5 km ...
Page 169
... pegmatite . M. K. Kar Ray reports a north - south trending mica - bearing pegmatite vein south of Jamaguda ( 19 ° 19 ′ : 84 ° 02 ' ) close to Hari- band nala . The veins is one metre thick eight metres long . Clear ruby mica , 6 cm . by ...
... pegmatite . M. K. Kar Ray reports a north - south trending mica - bearing pegmatite vein south of Jamaguda ( 19 ° 19 ′ : 84 ° 02 ' ) close to Hari- band nala . The veins is one metre thick eight metres long . Clear ruby mica , 6 cm . by ...
Contents
GEOLOGICAL SURVEYS | 1 |
NORTHERN REGION | 16 |
SOUTHERN REGION | 46 |
Copyright | |
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alignment alluvium amphibolite Andhra Pradesh aquifers Archaean Asstt bands Banerjee basalt Basu bauxite Bihar boreholes Calcutta carried out systematic cent charnockites Chatterjee chemical Chowdhury Circle Office clay coal coalfield copper Deccan Traps deposits depth dips district Ditto Ditto dolerite dolomite drilling dykes examined folded foliation formations fossils geochemical Geol geological mapping Geological Survey Geologists Geologists Junior Geophysics Ghosh gneiss Gondwana grade granite gneiss graphite groundwater Gupta indicated investigation iron-ore laboratory laterite limestone longitudes Madhya Pradesh Madras Maharashtra mapping scale metamorphism metres mica mica-schist million tonnes mineralisation minerals Murthy occurs Orissa pegmatite Petrology phyllites Project proposed Punjab quartz veins quartzite Rajasthan Regional reported river bed rock types samples sand sandstone Sarvashri schist seams sediments shales Sharma sheet Shri Singh Sinha spillway Srivastava studies Surv Survey of India Tertiary thickness thrust tion topo-sheet trend tubewells tunnel upto varies West Bengal zone