Micropaleontología del Cretácico al NW de Bogotá (Colombia).
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Universidad Industrial de Santander
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Se estudiaron diecisiete muestras cretácicas procedentes de la región entre Bogotá y Guaduas. En la parte inferior (Hauteriviense) se observa predominio terrígeno. A partir del albiense medio aparecen radiolarios y con ellos un predominio del régimen pelágico. En el turoniense y coniaciense vuelven a aparecer facies más litorales, con la aparición de foraminíferos bentónicos, que alternan con facies pelágicas. Las series pelágicas de Bogotá no representan depósitos de gran profundidad.
From a region between Bogotá and Guaduas seventeen Cretaceous samples were studied. In the lower part (Hauterivian) the terrigenous materials are the predominant. In the Middle Albian, Radiolaria are present giving a predominious of the pelagic regime. In the Turonian and Coniacian, facies with more litoral character appear with the presence of benthonic Foraminifera which alternate with pelagic facies. The pelagic series of Bogotá do not represent too deep deposits.
From a region between Bogotá and Guaduas seventeen Cretaceous samples were studied. In the lower part (Hauterivian) the terrigenous materials are the predominant. In the Middle Albian, Radiolaria are present giving a predominious of the pelagic regime. In the Turonian and Coniacian, facies with more litoral character appear with the presence of benthonic Foraminifera which alternate with pelagic facies. The pelagic series of Bogotá do not represent too deep deposits.