The Costa Rican Pacific margin: from accretion to erosion.

Flueh, Ernst R., Ranero, Cesar and von Huene, Roland (2000) The Costa Rican Pacific margin: from accretion to erosion. Zentralblatt für Geologie und Paläontologie / Teil 1, 1999 (7-8). pp. 669-678.

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Abstract

The understanding of the tectonic processes shaping the Pacific margin off Costa Rica has undergone a dramatic evolution during the past 25 years. The margin, initially interpreted to be built by accretion of sediment from the ocean plate, is now interpreted as made of ophiolitic rocks that are exposed onshore, with no net accretion currently active. New seismic images indicate that upper plate tectonic erosion might be the dominant process. Erosion is accomplished in some cases through transport of large bodies from upper to lower plate by plate boundary readjustment. Subduction of seamounts locally accelerates tectonic erosion.

Document Type: Article
Keywords: Costa Rican Pacific margin
Research affiliation: OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-GDY Marine Geodynamics
Refereed: Yes
Open Access Journal?: No
ISSN: 0340-5109
Date Deposited: 27 Jan 2016 11:32
Last Modified: 21 Jan 2019 15:43
URI: http://oceanrep.geomar.de/id/eprint/31190

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