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DOI | 10.1002/2017GL075822 |
Variable Melt Production Rate of the Kerguelen HotSpot Due To Long-Term Plume-Ridge Interaction | |
Bredow, Eva1; Steinberger, Bernhard1,2 | |
2018-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:1页码:126-136 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Norway |
英文摘要 | For at least 120 Myr, the Kerguelen plume has distributed enormous amounts of magmatic rocks over various igneous provinces between India, Australia, and Antarctica. Previous attempts to reconstruct the complex history of this plume have revealed several characteristics that are inconsistent with properties typically associated with plumes. To explore the geodynamic behavior of the Kerguelen hotspot, and in particular address these inconsistencies, we set up a regional viscous flow model with the mantle convection code ASPECT. Our model features complex time-dependent boundary conditions in order to explicitly simulate the surrounding conditions of the Kerguelen plume. We show that a constant plume influx can result in a variable magma production rate if the plume interacts with nearby spreading ridges and that a dismembered plume, multiple plumes, or solitary waves in the plume conduit are not required to explain the fluctuating magma output and other unusual characteristics attributed to the Kerguelen hotspot. |
英文关键词 | plume-ridge interaction Kerguelen mantle plume melt production rate hot spot track geodynamic model Indian Ocean |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423431800015 |
WOS关键词 | SOUTHERN INDIAN-OCEAN ; LARGE IGNEOUS PROVINCE ; FLOOD BASALTS ; DEEP-STRUCTURE ; ELAN BANK ; MANTLE PLUMES ; AR-40/AR-39 GEOCHRONOLOGY ; EXCESS TEMPERATURES ; CRUSTAL STRUCTURE ; NINETYEAST RIDGE |
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/25857 |
专题 | 气候变化 |
作者单位 | 1.GFZ German Res Ctr Geosci, Potsdam, Germany; 2.Univ Oslo, Ctr Earth Evolut & Dynam, Oslo, Norway |
推荐引用方式 GB/T 7714 | Bredow, Eva,Steinberger, Bernhard. Variable Melt Production Rate of the Kerguelen HotSpot Due To Long-Term Plume-Ridge Interaction[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(1):126-136. |
APA | Bredow, Eva,&Steinberger, Bernhard.(2018).Variable Melt Production Rate of the Kerguelen HotSpot Due To Long-Term Plume-Ridge Interaction.GEOPHYSICAL RESEARCH LETTERS,45(1),126-136. |
MLA | Bredow, Eva,et al."Variable Melt Production Rate of the Kerguelen HotSpot Due To Long-Term Plume-Ridge Interaction".GEOPHYSICAL RESEARCH LETTERS 45.1(2018):126-136. |
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