Records of the Geological Survey of India, Volume 108Geological Survey of India, 1977 - Earthquakes |
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Page 80
... plagioclase laths and wedge shaped plagioclase phenocrysts , either partially or completely ( Plate 22 , Fig . C ) . Groundmass exhibits a variety of textures in different flows , as well as in parts of the same flow , often showing a ...
... plagioclase laths and wedge shaped plagioclase phenocrysts , either partially or completely ( Plate 22 , Fig . C ) . Groundmass exhibits a variety of textures in different flows , as well as in parts of the same flow , often showing a ...
Page 81
... plagioclase phenocrysts . Clinopyroxene phenocrysts commonly occur as sub - hedral prisms and plates . Some of the phenocrysts , especially in the glomeroporphyritic aggregates , show rounded crystal outline . Well formed prismatic ...
... plagioclase phenocrysts . Clinopyroxene phenocrysts commonly occur as sub - hedral prisms and plates . Some of the phenocrysts , especially in the glomeroporphyritic aggregates , show rounded crystal outline . Well formed prismatic ...
Page 93
... plagioclase felspar and augite set in an intergranular groundmass of laths of plagioclase felspar , grains of augite and opaque ore . Note the bow - tie shaped plagioclase crystal ophitically enclosed by pyroxene phenocrysts . A ...
... plagioclase felspar and augite set in an intergranular groundmass of laths of plagioclase felspar , grains of augite and opaque ore . Note the bow - tie shaped plagioclase crystal ophitically enclosed by pyroxene phenocrysts . A ...
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