Records of the Geological Survey of India, Volume 127, Parts 7-8Government of India, 1993 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 15
... porphyritic / granite / rhyolite dykes ( Peralkaline ) . Granite porphyry dykes Dolerite dykes / pegmatites / aplites Fine - grained , porphyritic to non- porphyritic biotite granite ; medium- grained biotite granite . Amphibole ...
... porphyritic / granite / rhyolite dykes ( Peralkaline ) . Granite porphyry dykes Dolerite dykes / pegmatites / aplites Fine - grained , porphyritic to non- porphyritic biotite granite ; medium- grained biotite granite . Amphibole ...
Page 19
... porphyritic massive rhyolite . F7 Massive to flow banded porphyritic rhyolite . P5 Tuff and volcanic breccia F6 Flow banded aphyric rholite . P4 P6 Ash , lapilli tuff & bombs bearing volcanic breccia . FsMassive , vesicular rhyotite ...
... porphyritic massive rhyolite . F7 Massive to flow banded porphyritic rhyolite . P5 Tuff and volcanic breccia F6 Flow banded aphyric rholite . P4 P6 Ash , lapilli tuff & bombs bearing volcanic breccia . FsMassive , vesicular rhyotite ...
Page 149
... porphyritic granite with hornblende biotite Fine grained , pink - chocolate brown - grey , porphyritic , foliated microgranite with phenocrysts of feldspar in dominantly siliceious , microphyric groundmass Pegmatite ( Quartz + feldspar ...
... porphyritic granite with hornblende biotite Fine grained , pink - chocolate brown - grey , porphyritic , foliated microgranite with phenocrysts of feldspar in dominantly siliceious , microphyric groundmass Pegmatite ( Quartz + feldspar ...
Contents
GEOLOGICAL MAPPING Page | 1 |
Studies on coastal dynamics during the Quaternary | 20 |
Exploration for leadzinc in the South Sindesar Ridge LatiokaKhera | 24 |
Copyright | |
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Common terms and phrases
aeolian Alluvial Plain Alluvium anomaly bands base metal basin bedrock belt biotite block boreholes carried clay comprising conglomerate covered Dehradun district deposits depth dipping district dolomite exposed facies fault Field Season Flood Plain folds foliation Formation foundation Ganga geochemical geoenvironmental geological investigations geological mapping geomorphological geophysical geotechnical geothermal gneiss gold grained granite granitoids gravity grey Group Haryana Himachal Pradesh indicated intrusive km² limestone lithounits located logging magnetic mineral mineralised zone nala occur Older Alluvium pegmatite phyllite porphyritic Project Proterozoic quartz quartz veins quartzite Quaternary Rajasthan Region river rocks samples sand sandstone scale schist sediments sequence shale shear zone Singh Siwalik slope Sonbhadra district sq km strike length structure studies Subathu sulphide Supergroup surface tectonic terrace thick tion toposheet traverse trending tunnel Upper upto Uttar Pradesh Uttarkashi district valley volcanics Yamuna एवं का की के तथा में से है