Propagating buoyant mantle upwelling on the Reykjanes Ridge
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- 作者：Fernando Martinez ; fernando@hawaii.edu" class="auth_mail" title="E-mail the corresponding author ; Richard Hey
- 关键词：plate boundary processes ; mid-ocean ridges ; mantle plumes
- 刊名：Earth and Planetary Science Letters
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：457
- 期：Complete
- 页码：10-22
- 全文大小：5838 K
文摘
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The Reykjanes Ridge became segmented following an abrupt plate motion change.
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A persistent low-viscosity sub-axial conduit guided the reassembly of a linear axis.
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Shallow mantle buoyant upwelling instabilities propagate along the sub-axial conduit.
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Propagating instabilities replace ridge-orthogonal segmentation with V-shaped ridges.
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Mantle plume flow is not required to explain Reykjanes Ridge crustal structures.