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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Results 1-3 of 18
Page 21
... compositions of 7 samples of pyroxenite plotted in Fig.1 suggest that they are olivine clino- pyroxenites . From the table of modal composition it is evident that the content of clinopyroxene in these rocks ranges from 62 to 80 percent ...
... compositions of 7 samples of pyroxenite plotted in Fig.1 suggest that they are olivine clino- pyroxenites . From the table of modal composition it is evident that the content of clinopyroxene in these rocks ranges from 62 to 80 percent ...
Page 29
... composition of the magma indicated at si about 60 is the chemistry of the system to commence with , then the differentiation of peridotite , recorded by relatively higher values of fm and lower values of c , al and alk suggests that the ...
... composition of the magma indicated at si about 60 is the chemistry of the system to commence with , then the differentiation of peridotite , recorded by relatively higher values of fm and lower values of c , al and alk suggests that the ...
Page 66
... composition and texture . It is coarse - grained , dark , compact rock in hand specimen . Under the microscope , the rock is dark green in colour and coarse - grained . Prismatic sections of plagioclase ( An about 60 ) giving rise to ...
... composition and texture . It is coarse - grained , dark , compact rock in hand specimen . Under the microscope , the rock is dark green in colour and coarse - grained . Prismatic sections of plagioclase ( An about 60 ) giving rise to ...
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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Common terms and phrases
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