History of the geological development of Cuba during the late Cenozoic
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Abstract
This paper presents the geological development history of Cuba during the Late Cenozoic, beginning in the Late Miocene and covering the entire Quaternary. In the first stage, encompassing the Late Miocene and Pliocene, Cuba's total land area was larger than it is today. It is estimated that during this period there were almost no marine transgressions affecting the emerged territory. In a second stage, linked to the Quaternary, a series of glacio-eustatic transgressions and regressions of sea level are recognized, associated with the glaciations and interglacials recognized globally for this period. During this second stage, a radical change occurred in Cuba's climate, characterized by an initial, wetter phase and a subsequent, drier phase. The boundary between these two phases appears to coincide with the Brunhes/Matuyama paleomagnetic inversion, which occurred 780,000 years ago. The wetter phase is associated with the Early Pleistocene, and the drier phase with the Middle-Late Pleistocene. Several paleogeographic schemes for the Cuban territory are presented, linked to different transgressions, and the general characteristics that predominated in each case are described.
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References
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