Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-020-17193-6 |
Limited and localized magmatism in the Central Atlantic Magmatic Province | |
Marzen, R. E.1; Shillington, D. J.1,6; Lizarralde, D.2; Knapp, J. H.3; Heffner, D. M.4,7; Davis, J. K.1,8; Harder, S. H.5 | |
2020-07-07 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Central Atlantic Magmatic Province (CAMP) is the most aerially extensive magmatic event in Earth's history, but many questions remain about its origin, volume, and distribution. Despite many observations of CAMP magmatism near Earth's surface, few constraints exist on CAMP intrusions at depth. Here we present detailed constraints on crustal and upper mantle structure from wide-angle seismic data across the Triassic South Georgia Rift that formed shortly before CAMP. Lower crustal magmatism is concentrated where synrift sedimentary fill is thickest and the crust is thinnest, suggesting that lithospheric thinning influenced the locus and volume of magmatism. The limited distribution of lower crustal intrusions implies modest total CAMP volumes of 85,000 to 169,000 km(3) beneath the South Georgia Rift, consistent with moderately elevated mantle potential temperatures (<1500 degrees C). These results suggest that CAMP magmatism in the South Georgia Rift is caused by syn-rift decompression melting of a warm, enriched mantle. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000548309100016 |
WOS关键词 | COINCIDENT OCEAN-BOTTOM ; CRUSTAL STRUCTURE ; FLOOD-BASALT ; CONTINENTAL-CRUST ; CAROLINA TROUGH ; MANTLE ; BENEATH ; CAMP ; RIFT ; EVOLUTION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/282723 |
专题 | 资源环境科学 |
作者单位 | 1.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA; 2.Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA; 3.Oklahoma State Univ, Stillwater, OK 74078 USA; 4.Univ South Carolina, Columbia, SC 29208 USA; 5.Univ Texas El Paso, El Paso, TX 79902 USA; 6.No Arizona Univ, Flagstaff, AZ 86011 USA; 7.Occident Petr Corp, Houston, TX 77046 USA; 8.Drummond Carpenter PLLC, Orlando, FL 32801 USA |
推荐引用方式 GB/T 7714 | Marzen, R. E.,Shillington, D. J.,Lizarralde, D.,et al. Limited and localized magmatism in the Central Atlantic Magmatic Province[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Marzen, R. E..,Shillington, D. J..,Lizarralde, D..,Knapp, J. H..,Heffner, D. M..,...&Harder, S. H..(2020).Limited and localized magmatism in the Central Atlantic Magmatic Province.NATURE COMMUNICATIONS,11(1). |
MLA | Marzen, R. E.,et al."Limited and localized magmatism in the Central Atlantic Magmatic Province".NATURE COMMUNICATIONS 11.1(2020). |
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