Elements of Indian Stratigraphy |
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Page 21
... dark coloured gneiss with porphyritic crystals of felspar and ( c ) a highly crumpl- ed and foliated dark - grey biotite gneiss . The second is the most important . Some of the intrusions form comparatively homoge- neous granite masses ...
... dark coloured gneiss with porphyritic crystals of felspar and ( c ) a highly crumpl- ed and foliated dark - grey biotite gneiss . The second is the most important . Some of the intrusions form comparatively homoge- neous granite masses ...
Page 94
... dark foetid limestone No. 2 of above , is referable to the upper part of the Ordovician ( Caradocian age ) . The overlying dark grey limestone with cystids and brachiopods indicates a passage from the Ordovician to the Silurian . The ...
... dark foetid limestone No. 2 of above , is referable to the upper part of the Ordovician ( Caradocian age ) . The overlying dark grey limestone with cystids and brachiopods indicates a passage from the Ordovician to the Silurian . The ...
Page 141
... Dark concretionary lime- stone Dark blue shale Lower Trias Dark limestone with Otoceras woodwardi Dark hard clay with concretions containing Episageceras Dark blue limestone with Otoceras woodwardi and Ophiceras sakuntala . PLATE 9 ...
... Dark concretionary lime- stone Dark blue shale Lower Trias Dark limestone with Otoceras woodwardi Dark hard clay with concretions containing Episageceras Dark blue limestone with Otoceras woodwardi and Ophiceras sakuntala . PLATE 9 ...
Common terms and phrases
Ajabgarh Aravalli Archaean Assam Assilina Baluchistan bands Barail basal basin Belemnites Bhander Boulder Bed Brachiopods calcareous Cambrian carbonaceous Carboniferous Cephalopods Charnockites clays coal seams colour conglomerates consists corals Cretaceous Cuddapah Cuddapah system deposits developed Devonian Dharwar district dolomitic east Eastern Ghats Eocene exposed facies fauna feet thick Fenestella ferruginous Flysch folding foliated formations fossils Gastropods geosyncline gneiss Gondwana granite greenish grey Hazara hills Himalayas igneous India indicating intercalated intrusion Iron-ore series Jurassic Kashmir Kirthar Kumaon Kutch Laki Lamellibranchs layers limestone limestone and shales Lower Cretaceous Madhya Pradesh marine marls metamorphism MICHIGAN LIBRARIES Middle miles Miocene Nummulites oolite Ordovician Orissa orogenic outcrops overlain overlying Panjal Peninsular Permian phyllites plateau Productus purple quartzites Rajasthan Ranikot region rocks Salt Range sandstone Sausar schists sediments shales Silurian Siwalik slates Spirifer Spiti valley stage succession syncline TABLE Tertiary Tethys thin Trias Triassic unconformity unfossiliferous Upper Cretaceous Vindhyan volcanic western zone