Records of the Geological Survey of India, Volume 123, Parts 3-4Government of India, 1990 - 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 xxii
... associated with the fine to medium grained meta pelitic rocks have been delineated . Several gossanisation zones containing crystals of galena and chalcopyrite have been identified . The presence of primary gold in metavolcanics and ...
... associated with the fine to medium grained meta pelitic rocks have been delineated . Several gossanisation zones containing crystals of galena and chalcopyrite have been identified . The presence of primary gold in metavolcanics and ...
Page 77
... associated metamorphosed basic / ultra - basic rocks ( amphibolite , cpidiorite ) included in the " Chaibasa State " of Dunn & Dey ( 1942 ) , ( 2 ) a group of sandstone - conglomerate and quartzite with associated basic volcanic rocks ...
... associated metamorphosed basic / ultra - basic rocks ( amphibolite , cpidiorite ) included in the " Chaibasa State " of Dunn & Dey ( 1942 ) , ( 2 ) a group of sandstone - conglomerate and quartzite with associated basic volcanic rocks ...
Page 17
... associated with quartzite , occurs as disseminations , stringers and veinlets . The sulphide minerals are mainly pyrite , chalcopyrite and pyrrhotite . Stains of malachite and azurite are also seen on the weathered surfaces . Sulphide ...
... associated with quartzite , occurs as disseminations , stringers and veinlets . The sulphide minerals are mainly pyrite , chalcopyrite and pyrrhotite . Stains of malachite and azurite are also seen on the weathered surfaces . Sulphide ...
Contents
CONTENTS | 1 |
Quaternary geological and geomorphological mapping of the ChandanBadua | 7 |
Quaternary geological mapping in KosiGandak interfluve tract North Bihar | 13 |
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alignment amphibolite anomaly anorthosite bands basin bed rock belt BIHAR BIHAR Code biotite block boreholes chromite clay CONSTRUCTION STAGE GEOTECHNICAL covered cut-off dam axis deposits depth Disang district drilling earth dam Engineering Geology Engineering Geology Division-IV excavation exposed EXTENDED ABSTRACTS field season folds foliation Formation foundation geochemical geological mapping Geology Division-II Ops geomorphological geophysical Geotechnical and Special GEOTECHNICAL INVESTIGATION gneiss gneissic Gondwana grained granite granite gneiss granitoid graphite grey grouting GSI Vol hill indicate irrigation khondalite lineaments located Meghalaya migmatites mineralisation minerals nala occur ORISSA ORISSA Code pegmatite phyllite plagioclase power house proposed Purulia Purulia district quartz veins quartzite Quaternary Regional Geology Division right bank samples sandstone scale schist sediments shale shear zone Shillong siltstone Singhbhum slope soil Special Investigation spillway sq km STAGE GEOTECHNICAL INVESTIGATION structure surface SURVEY OF INDIA thick toposheet traverse trending tunnel upto volcanic weathered West Bengal