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Post-middle Eocene Stratigraphy

January 01, 2009

At the close of the middle Eocene, most of the strong orogenic deformation in Cuba had occurred, and the general distribution of the pre–upper Eocene structures and stratigraphic units was essentially as it is now. The younger Tertiary sediments began to accumulate over the now-essentially inactive, largely peneplained, submarine mountain chain, reflecting some large-scale deformation that included folding and faulting.

The overall movements during the remainder of the Tertiary have been of a slow, continuous uplift, with much of Cuba emerging by the Miocene. The younger Tertiary sedimentation consisted mostly of the filling of topographic depressions, although erosion of uplifts and filling of subsiding areas also occurred.

It should be noted that Gulf Oil, with the exception of a few areas in central Cuba, did little work on the younger Tertiary; therefore, much of the following is derived from published information, namely, Iturralde-Vinent (1977, 1988), Jakus (1983), and Fernandez et al. (1987).

As shown in Figure 148, the post–middle Eocene will be described according to the following areas:

Northern coast = Havana to Oriente Provinces

Southwestern basin = Los Palacios Basin, Habana-Matanzas, and western Las Villas

South-central basin = Central Depression (Gulf of Ana Maria)

Southeastern basins = Guanacayabo-Nipe Basin, central syncline, Guantanamo depression, and southern coast (only the stratigraphic unit of the Oriente southern coast will be listed).

A characteristic of most upper Eocene and later sediments is their richness in fossils, mostly large and small

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AAPG Studies in Geology

The Geology of Cuba

Georges Pardo
Georges Pardo
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American Association of Petroleum Geologists
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January 01, 2009




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