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 35
... dykes intrusive into the biotite gneisses ( Peninsular gneisses ) in an area of about 60 sq km west of Hunsur , Mysore District , Karnataka . The dykes consist of dolerite with and without olivine and hypersthene which are in different ...
... dykes intrusive into the biotite gneisses ( Peninsular gneisses ) in an area of about 60 sq km west of Hunsur , Mysore District , Karnataka . The dykes consist of dolerite with and without olivine and hypersthene which are in different ...
Page 35
... dykes is N 20 ° W to N 40 ° W and is subparallel to the foliation of the gneisses . They are apparently steep and vertical and sometimes have dips varying to as much as 65 either to NE or to SW . Slight discordance between the foliation ...
... dykes is N 20 ° W to N 40 ° W and is subparallel to the foliation of the gneisses . They are apparently steep and vertical and sometimes have dips varying to as much as 65 either to NE or to SW . Slight discordance between the foliation ...
Page 35
... dykes Three dykes of this type are met with in this area . These are of small dimensions and about a metre or less in width and traceable for a few metres . They are characterised by vitrophyric and hyalopilitic textures , the ...
... dykes Three dykes of this type are met with in this area . These are of small dimensions and about a metre or less in width and traceable for a few metres . They are characterised by vitrophyric and hyalopilitic textures , the ...
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