Magmatic flare-ups in arcs controlled by fluctuations in subduction water flux
文献类型：期刊论文
| 作者 | Chapman, Timothy6; Milan, Luke A.6; Zahirovic, Sabin5; Merdith, Andrew S.3,4; Clarke, Geoffrey L.5; Sun, Mingdao2; Daczko, Nathan R.1 |
| 刊名 | TECTONOPHYSICS
 |
| 出版日期 | 2024-10-08 |
| 卷号 | 888页码:11 |
| 关键词 | Magmatic flare-ups Magma flux Continental arc Earth's tempo Global water budgets Phase equilibria |
| ISSN号 | 0040-1951 |
| DOI | 10.1016/j.tecto.2024.230457 |
| 英文摘要 | The tempo of subduction-related magmatic activity over geological time is episodic. Despite intense study and its importance to crustal growth, the fundamental drivers of this episodicity remains unclear. We demonstrate quantitatively a first order relationship between arc flare-up events and high subduction flux. The volume of oceanic lithosphere entering the mantle is the key parameter that regulates the proportion and rate of H2O 2 O entering the sub-arc. New estimates of subduction zone H2O 2 O flux over the last 150 million-years indicate a three- to five-fold increase in the proportion of H2O 2 O entering the sub-arc during the most recent global pulse of magmatism. Step changes in H2O 2 O flux enable proportionally greater partial melting in the sub-arc mantle leading to a flare-up episode. Similar magmatic flare-ups in the ancient Earth could be related to variability in slab flux associated with supercontinent cycles. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001294847800001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80587]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Chapman, Timothy |
| 作者单位 | 1.Macquarie Univ, Dept Earth & Environm Sci, Macquarie Pk, NSW 2109, Australia 2.Chinese Acad Sci, State Key Lab Isotope Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 3.Univ Adelaide, Sch Phys Chem & Earth Sci, Adelaide, SA, Australia 4.Univ Leeds, Sch Earth & Environm, Woodhouse, Leeds LS2 9JT, England 5.Univ Sydney, Sch Geosci, Sydney, NSW 2006, Australia 6.Univ New England, Sch Environm & Rural Sci, Earth Sci, Armidale, NSW 2351, Australia |
| 推荐引用方式 GB/T 7714 | Chapman, Timothy,Milan, Luke A.,Zahirovic, Sabin,et al. Magmatic flare-ups in arcs controlled by fluctuations in subduction water flux[J]. TECTONOPHYSICS,2024,888:11. |
| APA | Chapman, Timothy.,Milan, Luke A..,Zahirovic, Sabin.,Merdith, Andrew S..,Clarke, Geoffrey L..,...&Daczko, Nathan R..(2024).Magmatic flare-ups in arcs controlled by fluctuations in subduction water flux.TECTONOPHYSICS,888,11. |
| MLA | Chapman, Timothy,et al."Magmatic flare-ups in arcs controlled by fluctuations in subduction water flux".TECTONOPHYSICS 888(2024):11. |
入库方式： OAI收割
来源：广州地球化学研究所
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