The Fragmented Death of the Farallon Plate
The Fragmented Death of the Farallon Plate
复制标题
法拉隆板的碎片死亡
DOI：
10.1029/2019gl083437
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发表时间：
2019
影响因子：
5.2
通讯作者：
R. Allen
中科院分区：
文献类型：
--
作者：
W. Hawley;R. Allen
伴随海洋板块死亡的过程，就像山脊靠近海沟一样，仍然是个谜。板块如何重组、破碎，并最终被其中一个边界板块捕获，是尚未解决的细节之一。我们从陆上和海上地震数据中提出了太平洋西北地区的层析模型，该模型显示了俯冲的胡安德富卡板块上的一个孔。我们认为，这个洞是沿着先前存在的软弱带撕裂的结果，导致了北美板块的火山活动，并导致了离岸的胡安·德·富卡板块的变形。我们提出，在海洋板块生命的最后阶段，表面的变形可能是由更深层次的动力学驱动的，海洋板块碎片的破碎和最终的捕获可能是由一个自下而上的过程控制的。
The processes that accompany the death of an oceanic plate, as a ridge nears a trench, remain enigmatic. How the plate might reorganize, fragment, and eventually be captured by one of the bounding plates are among the unresolved details. We present a tomographic model of the Pacific Northwest from onshore and offshore seismic data that reveals a hole in the subducted Juan de Fuca plate. We suggest that this hole is the result of a tear along a preexisting zone of weakness, is causing volcanism on the North American plate, and is causing deformation in the Juan de Fuca plate offshore. We propose that in the final stages of an oceanic plate's life, deformation on the surface can be driven by deeper dynamics and that the fragmentation and the eventual capture of oceanic plate fragments may be governed by a process that operates from the bottom up.
影响因子：
5.3
作者：
Quan Zhou;Jiashun Hu;Lijun Liu;T. Chaparro;D. Stegman;M. Faccenda
通讯作者：
Quan Zhou;Jiashun Hu;Lijun Liu;T. Chaparro;D. Stegman;M. Faccenda
DOI：
10.1016/s0022-5347(17)75525-5
发表时间：
1987-06-01
期刊：
Conference abstract
影响因子：
--
作者：
A. Morales;G.F. VanCott
通讯作者：
G.F. VanCott