Records of the Geological Survey of India, Volume 108Geological Survey of India, 1977 - Earthquakes |
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Page 13
to Upper Ordovician brachiopod fauna . But the conformable nature of the con- glomerate bearing horizon and its undisturbed nature could not be ascertained . Between Timarsain and Niti mostly terraced fields and scree cover the lower ...
to Upper Ordovician brachiopod fauna . But the conformable nature of the con- glomerate bearing horizon and its undisturbed nature could not be ascertained . Between Timarsain and Niti mostly terraced fields and scree cover the lower ...
Page 39
... nature of quartz grains well defined outcrops of this type of vein are rare , but abundant debris is quite common in the mica schist country . From the characters of quartz grains , the association of sulphide minerals , and nature of ...
... nature of quartz grains well defined outcrops of this type of vein are rare , but abundant debris is quite common in the mica schist country . From the characters of quartz grains , the association of sulphide minerals , and nature of ...
Page 71
... nature of vesicles in these flows is of mixed type , varying from spherical to highly irregular in shape . These flows are fairly thick with a top vesicular horizon overlying the compact central basalt layer and in contrast to the ...
... nature of vesicles in these flows is of mixed type , varying from spherical to highly irregular in shape . These flows are fairly thick with a top vesicular horizon overlying the compact central basalt layer and in contrast to the ...
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