Abstract

SANTILLAN-PINA, N  and  AGUAYO-CAMARGO, J.E.. Lower Tertiary Sedimentary Turbidite Facies at the Chicontepec Basin, East-Central Mexico. Ing. invest. y tecnol. [online]. 2011, vol.12, n.3, pp.337-352. ISSN 2594-0732.

The study area comprises the northwestern portion of the Chicontepec Basin at southeastern San Luis Potosí and northeastern Hidalgo States. At the stratigraphy sequences of the Chicontepec Formation from Lower Paleocene in isolated outocrops, were herein interpreted two major sedimentary sub-environments into the fan model: the middle and the external sedimentary settings; the applied criteria for their identification were: (a) lithostratigraphic (thickness, geometry and distribution); (b) internal and external primary sedimentary structures, and (c) intraformational deformation structures. The sedimentary facies are composed of siliciclastic and calcareous particles sourced from the Sierra Madre Oriental, western; the Tuxpan paleo-island, eastern; and from the Teziutlan Massif, southern; the sediments were massively transported by slideing, slumping, flow debris and turbidity currents, then deposited as massive, tabular, lenticular and lobely in shape at the slope foot and on the sea marine floor.

Keywords : Gulf of Mexico; Chicontepec Basin; Paleogene; turbidite systems.

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