Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene)

Detalles Bibliográficos
Autores principales:	Bolz, Angela, Calvo, Claudio
Formato:	Online
Idioma:	eng
Publicado:	Universidad de Costa Rica 2018
Acceso en línea:	https://revistas.ucr.ac.cr/index.php/geologica/article/view/32845

id	RGAC32845
record_format	ojs
spelling	RGAC328452023-09-13T01:07:28Z Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene) Bolz, Angela Calvo, Claudio Costa Rica carbonate platform larger foraminifera intraoceanic arc Eocene Oligocene The limestones of the Fila de Cal Formation build the largest carbonate platform sequence of Costa Rica extending over 180 km from southern Costa Rica into the Panamanian boarder area of David. The detailed limestone microfacies analysis and micropaleontologic dating based on the contained larger foraminiferal assemblages of 22 samples selected from the most representative exposures reveal three main carbonate facies: (1) Eoannularia eocenica-bearing spiculite facies from the Middle Eocene, (2) large lepidocyclinid-nummilitid facies from the Upper Eocene lead by the Lepidocyclina chaperi-Lepidocyclina tobleri panamensis assemblage and (3) dominant Lower Oligocene Lepidocyclina yurnagunensis-Lepidocyclina undosa assemblage. These three biostratigraphically successive facies record circa 14 to 19 m.y. of continuous shallow-marine carbonate sedimentation in the Pacific frontal arc region of southern Costa Rica. During this time large communities of benthic organisms: larger foraminifera, calcareous algae, corals, bryozoans, mollusks and equinoderms rapidly grew in warm tropical waters to build the largest and long-lasting carbonate platform on the Costa Rican arc. The carbonate sedimentation ended abruptly with accumulation of thick volcaniclastic marine platform-to-slope deposits of the Térraba Formation. Tectonically, the Fila de Cal carbonate platform development coincides with rapid convergence rates of the Farallón plate beneath southern Central America leading to strong arc uplift and new widespread neritic environments. The correlation with contemporaneous carbonate arc sequences clearly indicates that primarily their proximity to the inner volcanic arc areas and strong subsidence in response to emerging volcanic edifices are probably the main factors that controlled growing and persistence of carbonate environments within the arc setting. Universidad de Costa Rica 2018-04-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/geologica/article/view/32845 10.15517/rgac.v58i0.32845 Revista geológica de América central; Vol. 58 (2018): January-June Revista geológica de América central; Vol. 58 (2018): Enero-Junio 2215-261X 0256-7024 eng https://revistas.ucr.ac.cr/index.php/geologica/article/view/32845/32518 Derechos de autor 2018 Revista Geológica de América Central
institution	Universidad de Costa Rica
collection	Revista Geológica de América Central
language	eng
format	Online
author	Bolz, Angela Calvo, Claudio
spellingShingle	Bolz, Angela Calvo, Claudio Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene)
author_facet	Bolz, Angela Calvo, Claudio
author_sort	Bolz, Angela
title	Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene)
title_short	Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene)
title_full	Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene)
title_fullStr	Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene)
title_full_unstemmed	Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene)
title_sort	carbonate platform development in an intraoceanic arc setting: costa rica’s largest limestone sequence - the fila de cal formation (middle eocene to lower oligocene)
publisher	Universidad de Costa Rica
publishDate	2018
url	https://revistas.ucr.ac.cr/index.php/geologica/article/view/32845
work_keys_str_mv	AT bolzangela carbonateplatformdevelopmentinanintraoceanicarcsettingcostaricaslargestlimestonesequencethefiladecalformationmiddleeocenetoloweroligocene AT calvoclaudio carbonateplatformdevelopmentinanintraoceanicarcsettingcostaricaslargestlimestonesequencethefiladecalformationmiddleeocenetoloweroligocene
_version_	1811746997050277888

Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila de Cal Formation (Middle Eocene to Lower Oligocene)

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