Changes

===Aptian===

===Aptian===

During the Aptian (110 Ma; [[:file:St58OverviewFG28.JPG|Figure 8]]), deposition continued to be shallow-water marine along the north coast (Yaguajay* belt) with, farther to the north (Cayo Coco area) and as far as Oriente (Gibara area), some pelagic influence (Casablanca Group). Toward central and western Cuba, conditions continued to be pelagic. The pelagic and shallow-water conditions were separated by a conglomeratic breccia zone (Sagua la Chica* belt) representing a forereef facies, although reefs themselves are not common in outcrops.

During the [[Aptian]] (110 Ma; [[:file:St58OverviewFG28.JPG|Figure 8]]), deposition continued to be shallow-water marine along the north coast (Yaguajay* belt) with, farther to the north (Cayo Coco area) and as far as Oriente (Gibara area), some pelagic influence (Casablanca Group). Toward central and western Cuba, conditions continued to be pelagic. The pelagic and shallow-water conditions were separated by a conglomeratic breccia zone (Sagua la Chica* belt) representing a [[forereef]] facies, although reefs themselves are not common in outcrops.

There was an influx of quartz- and mica-rich turbiditic detritus, possibly from the erosion of the previously formed basement high, which formed the La Esperanza, Polier, and Constancia* formations. A southern Guajaibon–Sierra Azul carbonate bank may have been deposited.

There was an influx of quartz- and mica-rich [[Turbidite|turbiditic]] detritus, possibly from the erosion of the previously formed basement high, which formed the La Esperanza, Polier, and Constancia* Formations. A southern Guajaibon–Sierra Azul carbonate bank may have been deposited.

Toward the south, the close of the Early Cretaceous was characterized by a great outpouring of basaltic flows (Matagua* Formation) over rifted basement. This activity was accompanied toward the north and west (Cifuentes*, southern Rosario, northern Rosario, and La Esperanza belts) by abundant and extensive [[chert]] deposits (Calabazar*, Carmita*, and Santa Teresa* formations).

Toward the south, the close of the Early Cretaceous was characterized by a great outpouring of basaltic flows (Matagua* Formation) over rifted basement. This activity was accompanied toward the north and west (Cifuentes*, southern Rosario, northern Rosario, and La Esperanza belts) by abundant and extensive [[chert]] deposits (Calabazar*, Carmita*, and Santa Teresa* Formations).

===Albian-Cenomanian===

===Albian-Cenomanian===