Records of the Geological Survey of India, Volume 123, Part 7The Survey, 1990 - 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 21
... mainly comparise quartz , natrolite , calcite , stilbite . Quartz and zeolities also occur as veins as is seen in Amarsar area ( 41J / 14 ) , ' Aa ' type flows are characterised by flow breccia in the top part of the flow , the contact ...
... mainly comparise quartz , natrolite , calcite , stilbite . Quartz and zeolities also occur as veins as is seen in Amarsar area ( 41J / 14 ) , ' Aa ' type flows are characterised by flow breccia in the top part of the flow , the contact ...
Page 22
... Mainly amygdular basalt . ( Flow - IX ) IT5 Intertrappean siltstone and chert etc. Porphyritic basalt . ( Flow - VIII ) IT4 Intertrappean chert . Sequence of amygdular and compact basalt . ( Flow - VII ) Intertrappean- siltstone and ...
... Mainly amygdular basalt . ( Flow - IX ) IT5 Intertrappean siltstone and chert etc. Porphyritic basalt . ( Flow - VIII ) IT4 Intertrappean chert . Sequence of amygdular and compact basalt . ( Flow - VII ) Intertrappean- siltstone and ...
Page 104
... mainly less than 10 ppm and occasionally 10 to 15 ppm , indicating that the granites are not stanniferous . The tungsten values are mainly < 50 ppm , Nb < 20 ppm , La < 100 to 100 ppm , Y < 100 ppm and Ce < 500 ppm . PRELIMINARY ...
... mainly less than 10 ppm and occasionally 10 to 15 ppm , indicating that the granites are not stanniferous . The tungsten values are mainly < 50 ppm , Nb < 20 ppm , La < 100 to 100 ppm , Y < 100 ppm and Ce < 500 ppm . PRELIMINARY ...
Contents
rock sequence | 1 |
Mangalwar Projec | 3 |
Geological mapping of the Aravalli Supergroup and the associated granitic rocks in Panchmahals district Gujarat | 7 |
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aeolian Agucha Alluvium amphibolite amygdules anomalies Aravalli augite axial bands BASALT BASALT FLOW basin bedding belt Bethunmi biotite boreholes calcareous carbonate characterised chert clinopyroxene comprises conglomerate contains Deccan Traps deposits depth dolerite dolerite dykes dolomite drilling dunes eastern exploration exposed felsic Flow-II fluvial folds Formation geochemical Geological map geophysical surveys gneiss gossan granite grey Gujarat Hindoli INDEX indicated intersected intertrappean intruded Jahazpur Kalabar kmĀ² was mapped Magnetic Mangalwar Complex marble massive sulphide metamorphism metasediments mica schist migmatitic Miliolitic Limestone NE-SW NNE-SSW North Sindesar Ridge occur older olivine opaques overlying Pb-Zn pegmatite phase phenocrysts phyllite plagioclase porphyritic quartz quartz veins quartzite Rajasthan Rann Clay regional rock types samples sandstone Sawar scale schist sequence shale shear zone silt Sindesar Ridge block Sirohi district Sirohi Group skarns stratigraphic strike length structures Surendranagar texture thickness tion toposheet trending tuffaceous Udaipur UDAIPUR DISTRICT unconformably unit volcaniclastic volcanics Wadhwan western