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Geology of the Coal Measures in the Deccan Trap region
Photogeological Interpretation of Structure and Tectonics of
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amphibolites analysed Andaman anorthosites appears associated average bands base basin beds body carbonate Carboniferous carried chemical clay coal coalfield common composition concentration consists contain copper deposition depth described developed direction district east elements Eocene fauna field figs flows folds Formation fossil Geol Geological Survey given grade grained granite gray hill included indicate island later length less limestone lines lodes Lower marine material metal Middle mineral mineralisation nature observed occur older ortho-amphibolite oxidation peak Permian phase phosphate phosphorite plagioclase Plate present probably quartz quartzite range Records region reported represented river rocks samples sandstone sediments seen sericite Series shales shear shows similar soil South stage stream strike structures suggest surface Survey of India TABLE thickness tion trace Upper valley values varies veins younger zone