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    • Origin of cretaceous phosphorites from the onshore of Tamil Nadu, India 

      Rao, V.P.; Kessarkar, P.M.; Nagendra, R.; Babu, E.V.S.S.K. (Indian Academy of Science, 2007)
      Cretaceous phosphorites from the onshore of Tamil Nadu have been investigated for their origin and compared with those in the offshore. Cretaceous phosphorites occur as light brown to yellowish brown or white nodules in ...