Records of the Geological Survey of India, Volume 129, Parts 4-5The Survey, 1994 - 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 7
... pyrite , amphibole in basic rock ; pyrope , quartz , plagioclase etc in granulites ; biotite , quartz , feldspar ... pyrite ) are observed in basic rock . In some brecciated and sheared granite / gneiss , sulphides ( mainly pyrite ) ...
... pyrite , amphibole in basic rock ; pyrope , quartz , plagioclase etc in granulites ; biotite , quartz , feldspar ... pyrite ) are observed in basic rock . In some brecciated and sheared granite / gneiss , sulphides ( mainly pyrite ) ...
Page 86
... pyrite . Two types of amphibolites are found ; one is massive with salt and pepper texture and the other is fine - grained , highly schistose . It occurs as bands within the horn- blende gneiss and quartzo - feldspathic gneiss . Banded ...
... pyrite . Two types of amphibolites are found ; one is massive with salt and pepper texture and the other is fine - grained , highly schistose . It occurs as bands within the horn- blende gneiss and quartzo - feldspathic gneiss . Banded ...
Page
... pyrite + marcastie ( ? ) + magnetite showing typical " birds eye " texture . It is also occurring as thin film along the margins of large arsenopyrite grains . Most of the pyrite found is seen in the alteration zone of pyrrhotite ...
... pyrite + marcastie ( ? ) + magnetite showing typical " birds eye " texture . It is also occurring as thin film along the margins of large arsenopyrite grains . Most of the pyrite found is seen in the alteration zone of pyrrhotite ...
Contents
Resource Survey for dimensional stones of Mylliem Granite East Khasi Hills District Meghalaya | 4 |
ASSAM PROJECT 6 GEOLOGICAL MAPPING | 12 |
An Overview | 1 |
Copyright | |
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amphibolite ANANTAPUR DISTRICT ANDHRA PRADESH anomaly Arunachal Pradesh Assam assessment auriferous banded iron formation beach bedrock BIF bands biotite block boreholes carried charnockite chert clay comprising delineated deposits depth dips dolerite drilling dykes east eastern emplaced ENE-WSW excavated exposed field season folds foliation Formation gabbro geochemical GEOLOGICAL MAP geophysical geotechnical investigations gneiss grade grained granite granite gneiss granulite gravity grey Group hill hornblende indicated intrusives joints KARNATAKA KERALA kimberlite laterite limestone lineament located mafic magnetic Meghalaya metabasalt migmatites mineral mineralised zones NE-SW NW-SE occur overburden pegmatite phyllite pink power house PROJECT pyrite quartz quartz veins quartzite regional ridge river rock types samples sand sandstone scale schist belt schistose sediments shale shear zone Shillong slope soil Specialised Thematic Mapping sq km strike length structural studies sulphides surface surveys TAMIL NADU thick traverses trenching trending tunnel ultramafic upto valley volcanics weathered width