Records of the Geological Survey of India, Volume 136, Parts 4-7Government of India, 2001 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 16
... NW-SE trending mafic dykes. Most of them are fine to medium grained dolerite dykes, comprising mainly of plagioclase and clinopyroxene (diop-augite) with minor amounts of iron oxides, sphene and zircon. A few are gabbroic with coarse ...
... NW-SE trending mafic dykes. Most of them are fine to medium grained dolerite dykes, comprising mainly of plagioclase and clinopyroxene (diop-augite) with minor amounts of iron oxides, sphene and zircon. A few are gabbroic with coarse ...
Page 131
... NW-SE. Joints are well developed, trending NNE-SSW to NE-SW and NW-SE. Two sets of faults are delineated in the area, along NW-SE and ENE-WSW to E-W directions. The work has brought out shear zones in the northern part of the area ...
... NW-SE. Joints are well developed, trending NNE-SSW to NE-SW and NW-SE. Two sets of faults are delineated in the area, along NW-SE and ENE-WSW to E-W directions. The work has brought out shear zones in the northern part of the area ...
Page 29
... NW-SE and NNW-SSE trending shears. The regional trend of the lithounits in the area swerves from NNW-SSE to NW-SE with moderate to steep dips towards southwest. The lithounits have suffered at least three generations of deformations ...
... NW-SE and NNW-SSE trending shears. The regional trend of the lithounits in the area swerves from NNW-SSE to NW-SE with moderate to steep dips towards southwest. The lithounits have suffered at least three generations of deformations ...
Contents
EXTENDED ABSTRACTS OF PROGRESS REPORTS | 5 |
MEGHALAYA MINERAL INVESTIGATION PROJECT | 11 |
RECORDS VOLUME 136 PART5 | i |
Copyright | |
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amphibolite Andhra Pradesh anomaly auriferous bands basalt base metals basin bedrock biotite block boreholes carried charnockite clay collected comprising Construction stage geotechnical covered Cuddapah deformation delineated depth district dolerite dolomite drilling dykes east excavation exploration exposed fault feldspar field field season folds foliation Formation foundation fracture geoenvironmental geological mapping geophysical geotechnical investigation gneiss gneissic gold values grained granite granite gneiss granitoids gravity grey grouting indicated intersected intrusive joints kimberlite limestone lineaments lithounits located magnetic Meghalaya migmatite mineralised zone minerals NE-SW NNW-SSE NW-SE occur overburden pegmatite phyllite plagioclase porphyritic quartz quartz veins quartzite Rajasthan regional River rock samples sand sandstone scale schist schist belt shear zone slope soil sq km stage geotechnical investigation stream sediment strike length structural studies sulphide Supergroup surface surveys syenite Tamil Nadu tectonic thick toposheet traverse trench trending Udaipur district ultramafic village volcanics weathered width