Records of the Geological Survey of India, Volume 112, Part 5The Survey, 1979 - 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 15
... shear fractures in which they were involved . The largest of the shear zones is about 5 metres width located at the northern margin of the smaller body . While the fracture network hosts veins and veinlets of magnesite and opaline ...
... shear fractures in which they were involved . The largest of the shear zones is about 5 metres width located at the northern margin of the smaller body . While the fracture network hosts veins and veinlets of magnesite and opaline ...
Page 19
... Shear Zones A detailed examination of the CH - I along the railway cutting indicated the occurrence of a number of shear zones most of them of less than half a metre width . However , the shear zones towards the north -end of the body ...
... Shear Zones A detailed examination of the CH - I along the railway cutting indicated the occurrence of a number of shear zones most of them of less than half a metre width . However , the shear zones towards the north -end of the body ...
Page 21
... shearing , get reduced into an aggregate of smaller grains . This is characteristic of rocks occurring involved in the shear zones . The olivine grains show some extreme fract- uring and a gross directional alignment before becoming ...
... shearing , get reduced into an aggregate of smaller grains . This is characteristic of rocks occurring involved in the shear zones . The olivine grains show some extreme fract- uring and a gross directional alignment before becoming ...
Contents
RECORDS | 1 |
Petrology of the Ultramafic Rocks of Chalk Hills Salem Tamil Nadu | 15 |
Studies on the Dolerite Dykes of Hunsur Periyapatna area Mysore District | 35 |
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amphibole aquifers Auroville banded ferruginous barytes beds biotite borehole carbonate Chalk Hills charnockitic chemical chert chert/quartzite chlorite clay clinopyroxene colour Cretaceous Cuddapah basin Dharwar diopside dips district dolerite dolomite drilled dunites dykes East lode electrical log faults feldspars formation Gadag Geol Surv Ind GEOLOGICAL SURVEY geomorphic gms/tonne gneisses goethite gold grains granite granulites Groundwater hematite hornblende hornblendite igneous indicates iron Kabuliyatkatti Karnataka Kerala lapilli laterite layers limestone magma magnesite Mangampeta mapping metamorphism metres minerals Murthy Mysore Nilgiri occur olivine outcrops peridotites plagioclase present pyroxene pyroxenite quartz quartzite Quilon range Rec Geol Surv Red Oxide Salem samples sands sandstone Sandur schist sedimentary sediments serpentinite shear zone shonkinite silica strike length studies surface Survey of India taluk Tamil Nadu tectonic Tertiary thickness tonnes trend ultrabasic ultramafic bodies ultramafic rocks Unpublished GSI Report upto a depth varies vein barytes Vempalle Warkalli