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| Rao, Vp; Lamboy, M. |
| The phosphorite levels present in the ODP cores of the Oman margin are of two types: (a) sediment levels dominated by phosphate grains with a few white to light-brown nodules; these are sandy and predominantly occur in Upper Miocene to Early Pliocene sediments; and (b) sediment levels poor in phosphatic grains but consisting of several brown to dark-brown nodules; these mainly occur in Late Pliocene to Early Pleistocene sediments wherein some levels are sandy while others are clayey. The phosphate grains occur as coprolites, faecal pellets, spherical and coated grains, micronodules, foraminifer infillings and bone fragments. Ovoid to rod-shaped and botryoid-type apatite microparticles resembling phosphatized bacteria or coalesced bacteria are common in... |
| Tipo: Text |
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| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00097/20778/18402.pdf |
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