Terrazas marinas pleistocenas en la costa oriental de la Península de Bahoruco (SO de República Dominicana)
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Abstract
Se describe una sucesión cuaternaria formada por facies costeras y continentales
que registran fluctuaciones del nivel del mar en la costa Este de
la Península de Bahoruco (SO de República Dominicana). La base de esta
sucesión está formada por calizas coralinas que se han interpretado como
sistemas arrecifales franjeantes cuya edad más probable se corresponde con
el inicio y progreso del Último Interglacial (132-120 Ka). Estos depósitos
aparecen cubiertos y erosionados por dunas rampantes y abanicos aluviales
que registran un brusco descenso del nivel del mar. Secuencias de facies muy
similares han sido descritas por diversos autores en Bahamas y otras zonas
del Caribe, evidenciando los cambios del nivel del mar que tuvieron lugar al
principio del Estadio Isotópico Marino 5
We describe a Quaternary succession consisting of coastal and teuvestrial facies which record sea level fluctuations in the Eastern coast of Bahoruco peninsula (SW of Dominican Republic). The bottom of this sequence is formed by coral limestone deposit interpreted as fringing reef with a most likely age corresponding to the onset and progress of Last Interglacial (132- 120 kyrago). This deposit is covered and eroded by rampant dunes and alluvial fans that recorded a rapid sea-level drop.A very similar sequence of facies have been described by several authors in the Bahamas and other Caribbean areas, showing rapid and abrupt sea- level fluctuations that occurred within the beginning of Marine Isotope Stage 5
We describe a Quaternary succession consisting of coastal and teuvestrial facies which record sea level fluctuations in the Eastern coast of Bahoruco peninsula (SW of Dominican Republic). The bottom of this sequence is formed by coral limestone deposit interpreted as fringing reef with a most likely age corresponding to the onset and progress of Last Interglacial (132- 120 kyrago). This deposit is covered and eroded by rampant dunes and alluvial fans that recorded a rapid sea-level drop.A very similar sequence of facies have been described by several authors in the Bahamas and other Caribbean areas, showing rapid and abrupt sea- level fluctuations that occurred within the beginning of Marine Isotope Stage 5














