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 41
... represented mainly by biotite granite . The youngest group of rocks exposed in the area is represented by isolated cappings of sub - horizontally disposed arenaceous sediments ( medium to coarse sandstone with ferruginous concretion ) ...
... represented mainly by biotite granite . The youngest group of rocks exposed in the area is represented by isolated cappings of sub - horizontally disposed arenaceous sediments ( medium to coarse sandstone with ferruginous concretion ) ...
Page 145
... represented by dark grey splintery shales . These shales are arenaceous in upper part of the sequence and are interbedded with thinly bedded and occasionally with thickly bedded to massive sandstones and few laminated to thinly bedded ...
... represented by dark grey splintery shales . These shales are arenaceous in upper part of the sequence and are interbedded with thinly bedded and occasionally with thickly bedded to massive sandstones and few laminated to thinly bedded ...
Page 146
... represented by light grey tone , fine texture in lower parts and banded texture in upper parts . Unit - III has been interpreted as " Predominantly Arenites " of Laisong Formation of Barail Group and represented by bright to light grey ...
... represented by light grey tone , fine texture in lower parts and banded texture in upper parts . Unit - III has been interpreted as " Predominantly Arenites " of Laisong Formation of Barail Group and represented by bright to light grey ...
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