Elements of Indian Stratigraphy |
From inside the book
Results 1-3 of 11
Page 26
... orogenic movement took place during this period viz . the Manitoba ( 1,800 m . y . ) Old Black Hill ( 1,600 m . y ) , Great Bear Lake ( 1,300 m y . ) , Laurentia ( St. Lawrence 1,050 m . y . ) Killarnean ( 750 m . y . ) and the Lake ...
... orogenic movement took place during this period viz . the Manitoba ( 1,800 m . y . ) Old Black Hill ( 1,600 m . y ) , Great Bear Lake ( 1,300 m y . ) , Laurentia ( St. Lawrence 1,050 m . y . ) Killarnean ( 750 m . y . ) and the Lake ...
Page 27
... orogenic belts towards the close of each orogenic revolution and it will be possible to date these granites from the Lead - uranium ratios as in case of the granites of Canada and Africa . 2. 1. Nellore , Guntur , Vizagapatam , Koraput ...
... orogenic belts towards the close of each orogenic revolution and it will be possible to date these granites from the Lead - uranium ratios as in case of the granites of Canada and Africa . 2. 1. Nellore , Guntur , Vizagapatam , Koraput ...
Page 67
... orogenic compression of the whole belt and 5 . During the climax of the orogenic revolu- tion the downfolded metamorphased ; and migmatites are formed by rocks are intensely hot migrating granitic fluids and large granitic batholiths ...
... orogenic compression of the whole belt and 5 . During the climax of the orogenic revolu- tion the downfolded metamorphased ; and migmatites are formed by rocks are intensely hot migrating granitic fluids and large granitic batholiths ...
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