Records of the Geological Survey of India, Volume 124, Part 6The Survey, 1991 - 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 20
... medium to very large size phenocrysts forming basal megapor- phyritic marker flow . Top is marked by intertrappean Pahoehoe ( 2 ) , simple ( 2 ) , ' aa ' ( 1 ) . Fine to medium grained sparsely por- phyritic . Top is marked by wide ...
... medium to very large size phenocrysts forming basal megapor- phyritic marker flow . Top is marked by intertrappean Pahoehoe ( 2 ) , simple ( 2 ) , ' aa ' ( 1 ) . Fine to medium grained sparsely por- phyritic . Top is marked by wide ...
Page 71
... medium grained and aphyric 360-320 m Impersistent green / brown bole 0.1 to 0.3 m 3-15 m Vesicular top 1-2 m thick . Middle part is fine grained and sparsely porphyritic . Basal vesicular zone 0.1- 0.2 m thick , with / without pipe ...
... medium grained and aphyric 360-320 m Impersistent green / brown bole 0.1 to 0.3 m 3-15 m Vesicular top 1-2 m thick . Middle part is fine grained and sparsely porphyritic . Basal vesicular zone 0.1- 0.2 m thick , with / without pipe ...
Page 83
... medium size phenocrysts set in a fine- medium grained groundmass . The flow No. 9A which exhibits aa characters pinches out in Ane ghat . Flow No. 9A and 10 contain modal olivine . Flow No. 13 exhibits well developed columnar joints ...
... medium size phenocrysts set in a fine- medium grained groundmass . The flow No. 9A which exhibits aa characters pinches out in Ane ghat . Flow No. 9A and 10 contain modal olivine . Flow No. 13 exhibits well developed columnar joints ...
Contents
GEOLOGICAL MAPPING 1 to 106 | 13 |
MINERAL INVESTIGATIONS 107 to 154 | 113 |
GEOTECHNICAL INVESTIGATIONS 155 to | 169 |
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aa flows Alluvium bands basalt flows basemetal basin Bastar district Bhander block borehole chert clay compound pahoehoe flows comprises Deccan Trap Denwa deposits depth drilling dykes Economic Geology Division ENE-WSW exposed faults felspar field season flow groups fossils fragmentary top geochemical Geologist Jr geophysical gneiss Gondwana gradient holes indicate intrusive Jabalpur joints Lameta laterite lava pile limestone lineament Madhya Pradesh MADHYA PRADESH Code MAHARASHTRA MAHARASHTRA Code massive medium grained metabasic mineralisation minerals moderately porphyritic Nagpur Narmada non-porphyritic occur pahoehoe Parsora pegmatites phenocrysts phyllite plagioclase porphyritic Precambrian Project pyrite quartz quartz reefs quartz veins quartzite red bole Regional Geology Division Rewa river rock Sakoli samples sandstone Sausar scale scheelite schist sediments sequence shale shear zone sparsely porphyritic sq km stratigraphic structure studies Supergroup Systematic geological mapping thick Tiki tion toposheet trending Unconformity Upper upto vesicular Vindhyan Supergroup volcanic Yavatmal YAVATMAL DISTRICTS