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Specialised thematic mapping in parts of Tyrsad Barapani zone East Khasi Hills and Ri Bhoi districts
Resource Survey for Dimension stones in Meghalaya
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alignment amphibolite Andhra Pradesh anomalies Arunachal Pradesh Assam bands basin bedrock biotite block boreholes Brahmaputra carried chamockite Chitradurga clay Cuddapah depth district drilled dykes east eastem excavation fault ﬁeld ﬁrst ﬂank ﬂood plain ﬂows folds foliation Formation foundation geochemical geological mapping Geotechnical Investigation gneiss gold mineralisation gold values granite granulite gravity grey ground water Group hills identiﬁed indicated joints KARNATAKA Kerala kimberlite lamproite limestone lineament located magnetic Meghalaya migmatite mineral Mizoram NE-SW northem NW-SE occur Peninsular Gneissic penstock phyllite pink powerhouse Project proposed quartz quartz veins quartzite regional river rock samples sand sandstone scale schist belt Serchhip shale shear zone signiﬁcant slope soil southem Specialised Thematic Mapping sq km stage geotechnical investigations stream sediment strike length structural studies sulphide surface surveys Tamil Nadu terrain thick traversed trench trending tunnel valley village weathered westem width