Records of the Geological Survey of India, Volume 136, Parts 4-7Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 43
The pegmatites are often zoned with quartz cores. Some veins of pegmatite show graphic texture. Aprominent shear zone trending N20°W-S20°E, located towards east of Bukkapatnam, marks the contact between the granite gneisses (which are ...
The pegmatites are often zoned with quartz cores. Some veins of pegmatite show graphic texture. Aprominent shear zone trending N20°W-S20°E, located towards east of Bukkapatnam, marks the contact between the granite gneisses (which are ...
Page 43
The surveys were conducted over a traverse length of 500 m along the geological traverses. The area is occupied by pre-Aravalli basement complex (Mangalwar Complex) represented by tonalite, gneiss, pegmatite and amphibolite intruded ...
The surveys were conducted over a traverse length of 500 m along the geological traverses. The area is occupied by pre-Aravalli basement complex (Mangalwar Complex) represented by tonalite, gneiss, pegmatite and amphibolite intruded ...
Page 52
Veins of pegmatite, quartz and granite also concordantly intrude the adjoining calc-silicate rocks. The pegmatite veins that occur in granite and' calc-silicate rocks are unzoned as well as zoned in nature.
Veins of pegmatite, quartz and granite also concordantly intrude the adjoining calc-silicate rocks. The pegmatite veins that occur in granite and' calc-silicate rocks are unzoned as well as zoned in nature.
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Contents
EXTENDED ABSTRACTS OF PROGRESS REPORTS | 5 |
MEGHALAYA MINERAL INVESTIGATION PROJECT | 11 |
RECORDS VOLUME 136 PART5 | i |
Copyright | |
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Common terms and phrases
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
Bibliographic information
| Title | Records of the Geological Survey of India, Volume 136, Parts 4-7 |
| Author | Geological Survey of India |
| Publisher | Government of India, 2001 |
| Export Citation | BiBTeX EndNote RefMan |