Revista geológica de América central ISSN Impreso: 0256-7024 ISSN electrónico: 2215-261X

OAI: https://revistas.ucr.ac.cr/index.php/geologica/oai
Sedimentología de algunas facies de la Formación Coris (Mioceno Medio, Mioceno Superior), Valle Central, Costa Rica, América Central
PDF (Español (España))

How to Cite

Obando, L. G., Bottazzi, G., & Alvarado, F. (2011). Sedimentología de algunas facies de la Formación Coris (Mioceno Medio, Mioceno Superior), Valle Central, Costa Rica, América Central. Revista geológica De América Central, 13. https://doi.org/10.15517/rgac.v0i13.13075

Abstract

In the Central Valley of Costa Rica exists a principal sandy- quartz sequence (Middle Miocene to Upper Miocene). Occasionally this rocks are inter-bedded with coal seams (lignite 0.3 to 1 m thick) and silstones very riches in organic matter. 

The new data and reinterpretation of the sequences, permitted defined the sedimentary facies: Silicoclastic Platform (mixed facies), Open Bay Facies, Bar Facies (bar front (middle shoreface) and upper shoreface). 

Those facies represent a Strand Plain, generated by Miocene inter-ceanic currents, through the channel genetic related with the Sinistral Costa Rica Transcurrent Fault System. That fault,  has segmented the national territory and generated the pull-apart Basin in the Central Valley. The rapidly susidence accumulated thick shallow deposits. 

https://doi.org/10.15517/rgac.v0i13.13075
PDF (Español (España))

Comments

Downloads

Download data is not yet available.