Records of the Geological Survey of India, Volume 108Geological Survey of India, 1977 - Earthquakes |
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Page 110
... zone around the Batholith and the roof pendants , ( 7 ) the pre- sence of foreign as well as cognate xenoliths , ( 8 ) overwhelmingly porphyritic nature of the granites , ( 9 ) the presence of biotite within the potash felspar pheno ...
... zone around the Batholith and the roof pendants , ( 7 ) the pre- sence of foreign as well as cognate xenoliths , ( 8 ) overwhelmingly porphyritic nature of the granites , ( 9 ) the presence of biotite within the potash felspar pheno ...
Page 140
... zone of the Patkoi region in Eastern India , might indicate a subduction zone , a continuation from the Arakan Yoma - Andaman - Sumatra - Java belt . This is perhaps corro- borated by the east - deepening Tertiary başin characters in ...
... zone of the Patkoi region in Eastern India , might indicate a subduction zone , a continuation from the Arakan Yoma - Andaman - Sumatra - Java belt . This is perhaps corro- borated by the east - deepening Tertiary başin characters in ...
Page 187
... zone extending for a length of about 4 km with an average width of 150 metres was traced and it is along this fault zone that several large patches of gossan are found distributed . The study of these outcrops ( gossan ) with regard to ...
... zone extending for a length of about 4 km with an average width of 150 metres was traced and it is along this fault zone that several large patches of gossan are found distributed . The study of these outcrops ( gossan ) with regard to ...
Contents
OF | 1 |
On the leadzinc mineralisation around Kushbani Purulia district | 36 |
Eocene ostracoda from Kolayatji area Rajasthan by V D Mamgain | 42 |
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Amboli Amilia Aravalli Bandal granite bands Barakar basalt flows beds belt biotite brachiopod brown carbonatite Champaner Chorhoti clay clinopyroxene coal seams coalfield collapse conglomerate cracks crinoid damage Deccan Basalt Deccan Traps deposits Dhauli diamonds district earthquake east epicentre exposed fault fauna felspar fibrolite folding formations fossils Gansser Geol Geological Survey Ghat gneisses grained granite granitisation grey Griesbach groundmass Haora river Himalayas horizon isoseismal Karewa Kashmir kimberlite kutcha kutcha-pucca lava limestone lower Mahabaleshwar Main sub-basin masonry metamorphic metres mica minerals Moher sub-basin Muth Quartzite Niti Pass nodules observed occur olivine Ordovician outcrops pahoehoe Permian phenocrysts phyllites plagioclase Plate porphyritic Pradesh present Purewa quartz quartzite river rocks samples sandstone schists sediments seen sequence shales shock Silurian Spiti storeyed stratigraphic structures Surv Survey of India tectonic thickness thin trend Triassic ultrabasic Upper upto valley vertical vesicles village zone