International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Since Year 2012 | Open Access | Double Blind Reviewed

ISSN: 2319-7064




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Research Paper | Geology | Djibouti | Volume 4 Issue 11, November 2015


Biostratigraphic and Palaeoenvironmental Study of the Tob?ne Phosphatic Series (Western Senegal)

Moustapha DIAGNE [2] | Mamadou Fall [2] | Raphal SARR | Mouhamadou Bachir Diouf [2] | Ndye Penda Dione


Abstract: The geological section of the phosphate quarry of Tobne associated with the boreholes of prospecting, carried out by miners, confirms the Tobnes lithostratigraphic and biostratigraphic settings. A lithostratigraphic analysis [1], [2] highlights three sedimentary formations, in agreement with previous results [3] From a biostratigraphic point of view, the planktonic microfauna highlighted E8 to E13 biozones in the phosphatic group, dating it to the early Lutetian to Bartonian age and helping to develop a more complete biozonation throughout the deposit. The pelagism index indicates an evolution of sedimentary environment between a slightly opened internal platform, favourable to detrital and siliceous deposits, and an intermediate platform more conducive to calcium phosphate deposits.


Keywords: Tobne, Taba, phosphate, lithostratigraphy, biostratigraphy


Edition: Volume 4 Issue 11, November 2015,


Pages: 303 - 315


How to Cite this Article?

Moustapha DIAGNE, Mamadou Fall, Raphal SARR, Mouhamadou Bachir Diouf, Ndye Penda Dione, "Biostratigraphic and Palaeoenvironmental Study of the Tob?ne Phosphatic Series (Western Senegal)", International Journal of Science and Research (IJSR), Volume 4 Issue 11, November 2015, pp. 303-315, https://www.ijsr.net/get_abstract.php?paper_id=SUB159052

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