Records of the Geological Survey of India, Volume 111The Survey, 1982 - 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 230
... flows were demarcated . The flows are nonporphyritic to moderately porphyritic with coarse phenocrysts of felspars . The basalt flows exhibit a regional dip of 1 in 160 to southeast . The area is intruded by seven dykes of ...
... flows were demarcated . The flows are nonporphyritic to moderately porphyritic with coarse phenocrysts of felspars . The basalt flows exhibit a regional dip of 1 in 160 to southeast . The area is intruded by seven dykes of ...
Page 11
... flows bear olivine and in some flows augite and olivine also occur as phenocrysts . Olivine is found in fairly large percentages in some of the flows . Some of the flows bear giant phenocrysts of felspars . The majority of the flow ...
... flows bear olivine and in some flows augite and olivine also occur as phenocrysts . Olivine is found in fairly large percentages in some of the flows . Some of the flows bear giant phenocrysts of felspars . The majority of the flow ...
Page 202
Geological Survey of India. 472-505 III TABLE 4 Petrography of individual Flow , Semalkheri area ,. Description of Flows Although the traps are of widespread occurrence the sections where the flows are well exposed are limited . In the ...
Geological Survey of India. 472-505 III TABLE 4 Petrography of individual Flow , Semalkheri area ,. Description of Flows Although the traps are of widespread occurrence the sections where the flows are well exposed are limited . In the ...
Contents
ENGINEERING AND TRANSPORT DIVISION | 1 |
GEOSCIENCE DATA CENTRE | 9 |
WESTERN REGION | 17 |
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alignment amphibolite analysis Andhra Pradesh anomaly zone bands basalt basin bauxite bed rock Bihar biotite block boreholes carried out geological chalcopyrite Circle clay coal comprising Deccan Trap delineated deposits depth dipping Director dist district Division drill cores drill holes excavation fault folds Formation fossils geochemical geological mapping Geologist Geophysical surveys geotechnical geothermal glacier gneiss Gondwana grade Group grouting Headquarters indicated investigation laboratory laterite limestone line km located logged Madhya Pradesh magnetic magnetite Meghalaya metres mica schist migmatites million tonnes mineralisation minerals nala NE-SW NW-SE occurs Orissa pegmatite phyllite pits power house Project proposed pyrite quartz quartz veins quartzite Rajasthan regional resistivity river rock types S/Shri samples were collected sand sandstone Sarvashri scale schist seams sediments seismic shale shear zone Shri sillimanite soil spillway sq km strike length studies sulphide thickness tion Toposheet traverse trending tunnel upto Valley varying Vindhyan