Records of the Geological Survey of India, Volume 132, Part 2Government of India, 1996 - 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 17
... gneiss and biotite gneiss . The neosomes vary in width from few cm to 10 cm . The Rb / Sr ratio of the samples range from 0.0835 to 0.1414 . Rb - Sr whole rock isotopic studies of Isanatham migmatitic gneiss reveal an age of ca. 750 Ma ...
... gneiss and biotite gneiss . The neosomes vary in width from few cm to 10 cm . The Rb / Sr ratio of the samples range from 0.0835 to 0.1414 . Rb - Sr whole rock isotopic studies of Isanatham migmatitic gneiss reveal an age of ca. 750 Ma ...
Page 64
... gneiss , Grt - amphibolite gneiss , Grt - Bt gneiss and migmatites with late intrusives like granites and pegmatites . The layered paragneisses , comprising mainly garnet - sillimanite gneiss , garnetiferous quartzo - feldspathic gneiss ...
... gneiss , Grt - amphibolite gneiss , Grt - Bt gneiss and migmatites with late intrusives like granites and pegmatites . The layered paragneisses , comprising mainly garnet - sillimanite gneiss , garnetiferous quartzo - feldspathic gneiss ...
Page 77
... gneiss and leucogranite have been reported were selected for investigation . Rock types exposed in Goleng - Karat area are biotite gneiss , granite gneiss and mica schist belonging to the Thimphu Group . These are intruded by granites ...
... gneiss and leucogranite have been reported were selected for investigation . Rock types exposed in Goleng - Karat area are biotite gneiss , granite gneiss and mica schist belonging to the Thimphu Group . These are intruded by granites ...
Contents
Antarctica Division | 63 |
Bhutan Unit | 69 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 85 |
Copyright | |
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aeromagnetic Andhra assemblage band Barakar Barakar coal seams Barakar Formation Barren Measures basin bathymetric Bihar block borehole carbonaceous coarse comprises cores course was conducted Cruise Deccan Traps delineated deposits depth range district Dzongkhag EXPLORATION FOR COAL fault field season foraminifera geochemical Geological Map geophysical geotechnical gneiss Gondwana grade grained granite grey Group heavy mineral horizons Hyderabad INDEX indicate intersected investigation Kamthi lignite limestone lineament located Madhya Pradesh mainly metamorphic mineralisation nearshore NW-SE occur Orissa phyllite PRADESH Code programme quartz quartzite ranging in thickness Raniganj Raniganj Formation Regional exploration remote sensing ridge River rocks samples Samudra Manthan sand sandstone scale schist sea floor seabed seam zones sector sediments seismic sequence Shahdol shale shallow shear shelf silty clay Sohagpur Sohagpur Coalfield southern sq km strike structural studies Sub-basin subsurface surveys Talchir Formation Tamil Nadu Toposheet trending ultramafic upto Valley Coalfield water depth West Bengal zone