Records of the Geological Survey of India, Volume 83Geological Survey of India, 1950 - 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 35
... colour and are sometimes intruded by vein quartz . The horn- blende - schists are dark grey in colour , with black shining needle- like crystals of hornblende . The most prevalent rock types are massive granite and banded granite ...
... colour and are sometimes intruded by vein quartz . The horn- blende - schists are dark grey in colour , with black shining needle- like crystals of hornblende . The most prevalent rock types are massive granite and banded granite ...
Page 450
... colour ; it is strongly pleochroic in- X = pale yellowish buff to almost colourless ; Y = greenish blue ; Z deep ... colour , specially in the YZ section . The abnormal- ity of interference colour is least in the XZ section , which in ...
... colour ; it is strongly pleochroic in- X = pale yellowish buff to almost colourless ; Y = greenish blue ; Z deep ... colour , specially in the YZ section . The abnormal- ity of interference colour is least in the XZ section , which in ...
Page 465
... colour and containing some pyrite . The limestones and flagstones are in some places . traversed by veins of quartz and by minor stringers of calcite . The Palnad limestones are lithologically similar to the Narji limestones of the type ...
... colour and containing some pyrite . The limestones and flagstones are in some places . traversed by veins of quartz and by minor stringers of calcite . The Palnad limestones are lithologically similar to the Narji limestones of the type ...
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Common terms and phrases
abutment alignment alluvium amphibolites ANON ANON ANON Assam Assistant Geologist Auden Balasundaram bands bauxite beds Bihar biotite Bombay bore-holes cement cent charnockites cherts Circle and left clay coal coalfield colour Cuddapah dam-site days with effect deposits depth district dolerite drilling dykes east examined feet thick felspar furlongs garnetiferous geological mapping Geological Survey geophysical Ghosh gneisses gneissic Gondwana granite granulites grey Ground Water Division ground-water gypsum hills inches investigation iron-ore khondalites Kurnool laterite lignite limestone located M.Sc Madhya Pradesh Madras Messrs mineral Mining nala occur Orissa outcrops pegmatites phyllites quarries quartz quartz veins quartzites radiolarian railway reports Returned to headquarters river road rocks samples sand sandstone schists seams shales sheet 57 soil south-west Southern Circle square miles strike Subramanyam suitable Survey of India systematic mapping taluk Tertiary thin tion tons trap tunnel Uttar Pradesh valley village water supply West Bengal zone