Records of the Geological Survey of India, Volume 94The Survey, 1959 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 268
... VESICULAR TRAP Hard vesicular prophyritic trap , amygdaloidal : phenocrysts of felspar are about 3 mm . long and show 1 2 breadth to length ratio . Base of flow is marked by 7.7 cm . thick red bole ( ? ) which at 544 and 539 metres ...
... VESICULAR TRAP Hard vesicular prophyritic trap , amygdaloidal : phenocrysts of felspar are about 3 mm . long and show 1 2 breadth to length ratio . Base of flow is marked by 7.7 cm . thick red bole ( ? ) which at 544 and 539 metres ...
Page 270
... vesicular trap , amygdaloidal : has 90 cm . thick lens of hard vesicular trap . One in - filled cracks is also seen . 2.7 Fine massive porphyritic trap : highly jointed . Phenocrysts of felspar show 1 : 3 breadth to length ratio . 2.4 ...
... vesicular trap , amygdaloidal : has 90 cm . thick lens of hard vesicular trap . One in - filled cracks is also seen . 2.7 Fine massive porphyritic trap : highly jointed . Phenocrysts of felspar show 1 : 3 breadth to length ratio . 2.4 ...
Page 273
... Vesicular Traps . - The vesicular traps constitute the major portion of the basalts in this area . Along the Ghat road the vesicular basalts account for 121 metres thickness out of a section of 199 metres measured between 578 and 379 ...
... Vesicular Traps . - The vesicular traps constitute the major portion of the basalts in this area . Along the Ghat road the vesicular basalts account for 121 metres thickness out of a section of 199 metres measured between 578 and 379 ...
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Common terms and phrases
Ajanta Caves amphibole amphibole bearing quartzites amygdaloidal assemblage Balasore Balasore coast basalts beds biotite calc-silicate rocks calcite cent chambers chondrules Coarse colour convolute laminations Cretaceous crystals Deccan Traps dipping district dolerites dune sands dykes east enstatite felspar ferruginous Figured specimen flows folds foraminifera formations G.S.I. Type garnet Genus Geol Geological Geologist Gir forest grade grains granites heavy mineral hematite hills hornblende ilmenite intergrowth kilometres kyanite length Lenticulina limestone magnetite manganese manganese content manganiferous khondalite Marginulina massive trap meta-sediments metamorphism meteorite metres metres long metres wide nala Nishkhal north-west occur old dunes olivine opaques Orissa outcrop phenocrysts plagioclase porphyritic porphyritic trap pyroxenes quartz quartzites Rajasthan Reuss ridge rutile samples sand dunes Sastry schistosity sediments shales siliceous sillimanite Soft vesicular species Subarnarekha river Surv sutures thickness thin trend Trichinopoly Utatur stage veins vesicles vesicular trap width zircon