Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL077555 |
Opening of Hess Deep Rift at the Galapagos Triple Junction | |
Smith, Deborah K.1; Schouten, Hans2 | |
2018-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:9页码:3942-3950 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | At the Galapagos triple junction, the westward propagating Cocos-Nazca (C-N) Rift breaks into similar to 0.5Ma crust accreted at the East Pacific Rise. Rifting transitions to full magmatic seafloor spreading in the wake of the propagating tip. The 25-km-long Hess Deep rift is the transitional segment from rifting to spreading. Intrarift ridge (IRR), located within Hess Deep rift, is interpreted as a detachment fault, which exhumes deep-seated rocks to the seafloor. Although transitional segments must have occurred throughout the westward propagation of C-N Rift, IRR is the only obvious detachment fault along the base of the Rift scarps in the last similar to 5Ma of its propagation. IRR formation may be in response to a decrease in spreading rate (similar to 40 to <20mm/yr) and presumed lower melt supply, resulting from the formation of the Galapagos microplate similar to 1.4Ma, which now controls the opening at the C-N Rift tip. |
英文关键词 | seafloor spreading mid-ocean ridges oceanic triple junctions oceanic detachment faults Galapagos Triple Junction Galapagos microplate |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434111700022 |
WOS关键词 | MID-ATLANTIC RIDGE ; EAST PACIFIC RISE ; PAPUA-NEW-GUINEA ; METAMORPHIC CORE COMPLEXES ; SEA-FLOOR ; EQUATORIAL PACIFIC ; OCEANIC-CRUST ; RED-SEA ; CONTINENTAL-MARGIN ; DETACHMENT FAULTS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28764 |
专题 | 气候变化 |
作者单位 | 1.Natl Sci Fdn, Alexandria, VA 22314 USA; 2.Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA |
推荐引用方式 GB/T 7714 | Smith, Deborah K.,Schouten, Hans. Opening of Hess Deep Rift at the Galapagos Triple Junction[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(9):3942-3950. |
APA | Smith, Deborah K.,&Schouten, Hans.(2018).Opening of Hess Deep Rift at the Galapagos Triple Junction.GEOPHYSICAL RESEARCH LETTERS,45(9),3942-3950. |
MLA | Smith, Deborah K.,et al."Opening of Hess Deep Rift at the Galapagos Triple Junction".GEOPHYSICAL RESEARCH LETTERS 45.9(2018):3942-3950. |
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