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084f2db8c6 India's geographical land area can be classified into Deccan trap, Gondwana and Vindhyan. ^ "Earthquake Hazards and the Collision between India and Asia". These sandstones have very few fossils. The author eschews a detailed account of the fold belts for a clear description of all the concepts that go into building models. Geology Survey India, 70 (1936 and 1940). This Memoir shows that Phanerozoic plate-tectonic and sequence stratigraphic principles can be applied to the Precambrian basins of large Archaean provinces. The next chapters describe the physical and chemical characteristics of certain mineral ores, as well as the mineral content of certain rock assemblages. The Indian Craton was once part of the supercontinent of Pangaea.
Maps. By the Late Cretaceous India had separated from Australia and Africa and was moving northward towards Asia. The metamorphic basement consists of gneisses which are further classified into the Bengal gneiss, the Bundelkhand gneiss and the Nilgiri gneiss. At the close of the Mesozoic one of the greatest volcanic eruptions in earth's history occurred, the Deccan lava flows. Phanerozoic. Finally there is a zone consisting of red or purple sandstones having a thickness of 250 feet (76m) to 400 feet (122m) called the Purple Sandstone. Early to Late Proterozoic(2.5 to 0.54 billion years) calcareous and arenaceous deposits, which correspond to humid and semi-arid climatic regimes, were deposited the Cuddapah and Vindhyan basins. Major rock groups.