RESUMENAl oriente de la Cordillera Central Colombiana, en el municipio de San Luis-Tolima, afloran rocas ígneas plutónicas post-Triásico Tardío conocidas como Stock de Payandé. Los resultados de campo, petrográficos y geoquímicos revelan que estas rocas corresponden a un solo cuerpo con variaciones composicionales desde diorita gabróica a granodiorita, siendo ésta última la litología predominante en el área de estudio. Los diagramas de discriminación tectónica muestran que las rocas están asociadas a ambientes de arcos volcánicos formados en márgenes continentales activas. Las comparaciones químicas y posición de este intrusivo, permiten hacer una correlación a nivel regional con cuerpos plutónicos y volcano-sedimentarios reportados como Jurásicos en el Valle Superior del Magdalena (VSM) y en la Cordillera Central de Colombia. PETROGRAPHY AND GEOCHEMISTRY OF PAYANDÉ STOCK AND ITS RELATION TO JURASIC MAGMATISM OF THE SOUTHERN COLOMBIA ABSTRACTPost-Triassic plutonic rocks, known as Payande Stock, are outcropping in the eastern flank of the Colombian Central Cordillera nearby San Luis-Tolima town. Detailed cartographic, petrographic, and geochemical analyses carried out on these rocks reveal compositional variations from gabbroic diorite to granodiorite. Tectonic discrimination diagrams show that the Payande Stock is associated with volcanic arcs formed in active continental margins. The chemical characteristics and fieldwork allow us to make a comparison between this intrusive with volcanic and plutonic regional bodies originated during the Jurassic in the Central Cordillera and Upper Magdalena Valley.
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