A recent phase of accretion along the southern Costa Rican subduction zone
详细信息 查看全文
- 作者：Nathan L. Bangsa ; nathan@ig.utexas.edu" class="auth_mail" title="E-mail the corresponding author ; Kirk D. McIntosha ; Eli A. Silverb ; Jared W. Kluesnerc ; Cé ; sar R. Ranerod
- 关键词：subduction accretion ; tectonic erosion ; Costa Rican subduction zone ; 3D seismic imaging ; accretionary wedge deformation
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：1 June 2016
- 年：2016
- 卷：443
- 期：Complete
- 页码：204-215
- 全文大小：14345 K
文摘
- •
The Costa Rica margin, NW of Osa, appears to be composed of clastic sediments.
- •
Few structures within the Costa Rica margin are consistent with tectonic erosion.
- •
The margin wedge is composed of fault-propagation folds with no deep normal faults.
- •
The margin wedge has regularly been shortening over the past 2.0–4.5 m.y.