Records of the Geological Survey of India, Volume 100The Survey, 1972 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Results 1-3 of 67
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 Ernakulam district . - According to G : B. Nair and T. T. A. 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 Ernakulam district . - According to G : B. Nair and T. T. A. 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 anticline Archaean Assistant Geologists Asstt bands Banerjee basalt bauxite Bihar boreholes Calcutta carried out systematic cent charnockites Circle Office clay coal coalfield covered an area Deccan Traps Delhi deposits depth dips district Ditto Ditto dolerite dolomite dykes examined exposed fault folded foliation formations fossils geochemical geological mapping Geologists Geologists Junior Geophysics Ghosh gneiss Gondwana grade granite gneiss graphite ground level groundwater Gujarat Gupta intrusive investigation iron-ore Jammu laboratory laterite latitudes limestone longitudes Madhya Pradesh Madras Maharashtra mapped an area mapping scale metres mica-schist million tonnes mineralisation minerals nala occurs Orissa pegmatite phyllites power house Project proposed quartz quartz veins quartzite Rajasthan recommended Regional river bed rock types samples sandstone Sarvashri schist seams shales Sharma sheet Shri Singh Sinha slates spillway Srivastava strike studies Superintending Geologist-in-Charge syncline taluk thickness thrust tion topo-sheet trend tubewells tunnel upto varies West Bengal zone