Geology of Chengalpattu District

Age		Rock Type
	Recent to late Pleistocene	Laterite
Cenozoic	Early to middle Pleistocene	Kancheepuram Gravels
	Mio-Pliocene	Sandstone
Mesozoic	Lower Cretaceous	Sandstone, Shale, Conglomerate
Paleozoic	Permian	Lower Gondwana
Archaean		Khondalite Group, Charnockite Group, Migmatite Group and Basic dykes

Mineral occurrences in Chengalpattu District

Mineral Wealth
Granite	Rough Stone	Ordinary Earth	Silica Sand	River Sand	Major Mineral
Palur & Kadugupattu, Pachampakkam Villages in Cheyyur Taluk	Cheyyur, Madhuranthagam, Thirukazhukundram Taluks.	In PWD / Panchayath tanks	Mudaliyarkuppam, Pallampakkam in Cheyyur Taluk.	Palar, Cheyyar Rivers	Nil

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