Records of the Geological Survey of India, Volume 73, Parts 1-2Government of India, 1938 - Earthquakes Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 227
... quartz , then coarse crystals of cassiterite have grown out into the vugh , whilst cutting across such individual crystals minute quartz veinlets may be seen . On the whole it might be said of this first phase of mineralisa- tion that ...
... quartz , then coarse crystals of cassiterite have grown out into the vugh , whilst cutting across such individual crystals minute quartz veinlets may be seen . On the whole it might be said of this first phase of mineralisa- tion that ...
Page 236
... quartz ( Q ) . P. S. 243. X 54 . FIG . 4. - Schcelite ( dark grey ) , replacing wolfram ( light grey ) . P. S. 231. X 54 . PLATE 7 , FIG . 1. — Wolfram ( W ) crystal replaced by scheelite ( S ) . Cassiterite ( C ) and quartz ( Q ) ...
... quartz ( Q ) . P. S. 243. X 54 . FIG . 4. - Schcelite ( dark grey ) , replacing wolfram ( light grey ) . P. S. 231. X 54 . PLATE 7 , FIG . 1. — Wolfram ( W ) crystal replaced by scheelite ( S ) . Cassiterite ( C ) and quartz ( Q ) ...
Page 244
... quartz . In general , then , pyrite was earlier than quartz . Examples of quartz veining or replacing cassiterite are rare ( Pl . 13 , fig . 4 ) , but quartz quite commonly replaces and veins wol- fram . It is noticeable in several ...
... quartz . In general , then , pyrite was earlier than quartz . Examples of quartz veining or replacing cassiterite are rare ( Pl . 13 , fig . 4 ) , but quartz quite commonly replaces and veins wol- fram . It is noticeable in several ...
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Common terms and phrases
A. L. Coulson Abstract andradite anticline Aravalli bands beds Bengal Bihar biotite bismuthinite Bombay Burma calcareous calcite Calcutta cassiterite chaung coal collection colour conglomerate Congr Cretaceous crystalline Current Science Deccan trap deposits district earthquake east eastern Eastern States Agency Eocene fault feet felspar formation fossil galena garnet Geol Geological Survey Geologist Ghosh gneisses gneissic granite gravel grey hill intrusions Kashmir Khasi Kyaukse Lahiri Lameta laterite limestone mapped metamorphic metamorphosed meteorite miles minerals Mining Journ muscovite Nala North-West Frontier Province noted occur outcrops Panjal trap pegmatite phyllites Plateau Limestone Proc Punjab pyrite quartz quartzites replaced reports reservoir ridge river rocks Sahni sandstones scheelite schists Science and Culture shales sheet 93 shock Siwalik slates south-west southern specimens sphalerite Surv Survey of India tahsil Tertiary tons tourmaline Twenty-fourth Ind Upper Siwaliks valley veins Waziristan wolfram