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 35
... Group . The Singhbhum Group comprises medium grade pelitic and metabasic schist while the Bonai Group is represented by low grade pelites , carbonaceous and tuffaceous metasedi- ments , BHQ , chert and metabasic volcanics . There is a ...
... Group . The Singhbhum Group comprises medium grade pelitic and metabasic schist while the Bonai Group is represented by low grade pelites , carbonaceous and tuffaceous metasedi- ments , BHQ , chert and metabasic volcanics . There is a ...
Page 62
... Groups . Jenam Formation of Barail Group is exposed in the westernmost part of the mapped area and has a thrusted contact with the Disang Group . Laisong Formation , the lower unit of Barails , is not encountered . Renji Formation of Barail ...
... Groups . Jenam Formation of Barail Group is exposed in the westernmost part of the mapped area and has a thrusted contact with the Disang Group . Laisong Formation , the lower unit of Barails , is not encountered . Renji Formation of Barail ...
Page 145
... Group , Laisong and Jenam Formations of Barail Group are exposed . Disang Group ( Unit - I ) comprises slates , phyllites and shales in lower parts along Sidzu river , where the veins and nodules of pyrite and criss crossing quartz ...
... Group , Laisong and Jenam Formations of Barail Group are exposed . Disang Group ( Unit - I ) comprises slates , phyllites and shales in lower parts along Sidzu river , where the veins and nodules of pyrite and criss crossing quartz ...
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