Records of the Geological Survey of India, Volume 113, Parts 2-4Government of India, 1983 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 5
Geological Survey of India. GEOLOGY AND MINERALISATION ALONG THE NORTHERN SHEAR ZONE , PURULIA DISTRICT , WEST BENGAL - AN UP - TO - DATE APPRAISAL ( With Figure 1 ) M. N. KUMAR , N. DAS and S. DASGUPTA ... shear zone, Purulia district, West.
Geological Survey of India. GEOLOGY AND MINERALISATION ALONG THE NORTHERN SHEAR ZONE , PURULIA DISTRICT , WEST BENGAL - AN UP - TO - DATE APPRAISAL ( With Figure 1 ) M. N. KUMAR , N. DAS and S. DASGUPTA ... shear zone, Purulia district, West.
Page 7
... shear zone in the western and central part and along it in the easternmost part ( Fig . 1 ) show several petrographic and structural entities . Along the margin , gneissic banding is well developed in the granitic ... SHEAR ZONE , PURULIA.
... shear zone in the western and central part and along it in the easternmost part ( Fig . 1 ) show several petrographic and structural entities . Along the margin , gneissic banding is well developed in the granitic ... SHEAR ZONE , PURULIA.
Page 7
... zone , south of which is the Northern Shear Zone . Dominant members of this zone are faulted with angular blocks of various facies of granites . Sericite and muscovite rich cataclasites flanking the Melange zone on south and north show ...
... zone , south of which is the Northern Shear Zone . Dominant members of this zone are faulted with angular blocks of various facies of granites . Sericite and muscovite rich cataclasites flanking the Melange zone on south and north show ...
Contents
A Probable Zone of Carbonatite and Fenitic Rock Association | 7 |
Quantitative Correlation of Cyclic Stratigraphic Sequences | 17 |
On the Fossiliferous Ordovician Rocks of Black Mountain | 35 |
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alkali anomaly apatite Arunachal assemblage associated axial bands Beldih belt Bhutan Bihar biotite bore holes borehole Carbonaceous carbonatite Chaibasa chert chlorite chlorite schist chromite coal seam Coarse sandstone complex contours correlation Dalma Deccan basalts deformation deposits depth developed Dhanjori district Dubrajpur Dubrajpur Formation Eastern exploration F₁ fault feldspars folds foliation fossils geochemical Geol Geological Survey Ghosh gneiss Gondwana grade grains granite gneiss grey Group Hills Himalaya host rock ijolite limestone lineation magnetite Manipur Medium sandstone metamorphism metres migmatites mineralisation minerals muscovite nepheline Northern Shear Zone occur olivine ophiolite phyllites plagioclase Plate plunging Pradesh Precambrian pyrite quartz quartzite regional rock types S₁ S₂ samples sandstone Sarkar schist schistosity sector sedimentary sequence sericite serpentinite shale sillimanite Singhbhum stratigraphic structural studies sulphide Surv Survey of India tectonic texture thickness tholeiites tion trending ultramafic upto veins volcanic