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Problems of correlation of PreGondwana rock units of Arunachal Pradesh and adjoining areasa review
The Sung Valley alkaline ultramafic carbonatite complex East Khasi and Jaintia Hills districts Meghalaya
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anorthosite appears associated bands basalt basin beds belt block bodies bore holes brown chert clay coal complex contain deposits depth detailed developed direction district dykes east eastern exhibit exploration exposed fault flows fluorite folds Formation fragments Geol Geological Survey gneisses grade grains granite Group hills indicated laterite layers length lignite limestone lower major mapping material metres mineralisation minerals minor nature observed occur olivine phase phosphorite pigeonite places plagioclase Plate Pleistocene Pradesh present quartz quartzite range recorded reflected region Report represent river rocks samples sandstone schist seam sediments seen sequence sericite shale soil stream structure studies suggest surface Survey of India Table tectonic thickness thin tion Trap trending unit upper upto valley values varies veins volcanic weathering zone