| A record of spontaneous subduction initiation in the Izu-Bonin-Mariana arc | |
| Arculus, Richard J.1; Ishizuka, Osamu2,3; Bogus, Kara A.4; Gurnis, Michael5; Hickey-Vargas, Rosemary6; Aljahdali, Mohammed H.7; Bandini-Maeder, Alexandre N.8; Barth, Andrew P.9; Brandl, Philipp A.1,10; Drab, Laureen11; Guerra, Rodrigo do Monte12; Hamada, Morihisa13; Jiang, Fuqing14; Kanayama, Kyoko15; Kender, Sev16,17; Kusano, Yuki18; Li, He18; Loudin, Lorne C.19; Maffione, Marco20; Marsaglia, Kathleen M.21; McCarthy, Anders22; Meffre, Sebastien23; Morris, Antony24; Neuhaus, Martin25; Savov, Ivan P.26; Sena, Clara27; Tepley, Frank J., III; van der Land, Cees29; Yogodzinski, Gene M.30; Zhang, Zhaohui31 | |
| 2015-09-01 | |
| 发表期刊 | NATURE GEOSCIENCE
 |
| 卷号 | 8期号:9页码:728-733 |
| 文章类型 | Article |
| 摘要 | The initiation of tectonic plate subduction into the mantle is poorly understood. If subduction is induced by the push of a distant mid-ocean ridge or subducted slab pull, we expect compression and uplift of the overriding plate. In contrast, spontaneous subduction initiation, driven by subsidence of dense lithosphere along faults adjacent to buoyant lithosphere, would result in extension and magmatism. The rock record of subduction initiation is typically obscured by younger deposits, so evaluating these possibilities has proved elusive. Here we analyse the geochemical characteristics of igneous basement rocks and overlying sediments, sampled from the Amami Sankaku Basin in the northwest Philippine Sea. The uppermost basement rocks are areally widespread and supplied via dykes. They are similar in composition and age-as constrained by the biostratigraphy of the overlying sediments-to the 52-48-million-year-old basalts in the adjacent Izu-Bonin-Mariana fore-arc. The geochemical characteristics of the basement lavas indicate that a component of subducted lithosphere was involved in their genesis, and the lavas were derived from mantle source rocks that were more melt-depleted than those tapped at mid-ocean ridges. We propose that the basement lavas formed during the inception of Izu-Bonin-Mariana subduction in a mode consistent with the spontaneous initiation of subduction. |
| DOI | 10.1038/NGEO2515 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360392000020 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/50262 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia 2.Geol Survey Japan AIST, Tsukuba, Ibaraki 3058567, Japan 3.Japan Agcy Marine Earth Sci & Technol, Res & Dev Ctr Ocean Drilling Sci, Yokosuka, Kanagawa 2370061, Japan 4.Texas A&M Univ, Int Ocean Discovery Program, College Stn, TX 77845 USA 5.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA 6.Florida Int Univ, Earth & Environm Dept, Miami, FL 33199 USA 7.Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA 8.Univ Western Australia, Sch Earth & Environm, Ctr Energy Geosci, Perth, WA 6009, Australia 9.Indiana Univ Purdue Univ, Dept Earth Sci, Indianapolis, IN 46202 USA 10.Univ Erlangen Nurnberg, Geozentrum Nordbayern, D-91054 Erlangen, Germany 11.Columbia Univ, Lamont Doherty Earth Observ, Borehole Res Grp, Palisades, NY 10964 USA 12.Univ Vale Rio dos Sinos, Technol Inst Micropaleontol, BR-93022 Sao Leopoldo, Brazil 13.Japan Agcy Marine Earth Sci & Technol, Dept Solid Earth Geochem, Yokosuka, Kanagawa 2370061, Japan 14.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 15.Kanazawa Univ, Coll Sci & Engn, Kanazawa, Ishikawa 9201192, Japan 16.Univ Nottingham, Sch Geog, Nottingham NG7 2RD, England 17.British Geol Survey, Keyworth NG12 5GG, Notts, England 18.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 19.Univ New Hampshire, Dept Earth Sci, Durham, NH 03824 USA 20.Univ Utrecht, Inst Earth Sci, NL-3584 Utrecht, Netherlands 21.Calif State Univ Northridge, Dept Geol Sci, Northridge, CA 91330 USA 22.Univ Lausanne, Inst Earth Sci, CH-1015 Lausanne, Switzerland 23.Univ Tasmania, Sch Earth Sci, Hobart, Tas 7001, Australia 24.Univ Plymouth, Sch Geog Earth & Environm Sci, Plymouth PL4 8AA, Devon, England 25.Tech Univ Carolo Wilhelmina Braunschweig, Inst Geophys & Extraterrestr Phys, D-38106 Braunschweig, Germany 26.Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England 27.Univ Aveiro, Geosci Dept CESAM, P-3810193 Aveiro, Portugal 28.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA 29.Univ Newcastle, Sch Civil Engn & Geosci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England 30.Univ S Carolina, Dept Earth & Ocean Sci, Columbia, SC 29208 USA 31.Nanjing Univ, Earth Sci, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Arculus, Richard J.,Ishizuka, Osamu,Bogus, Kara A.,et al. A record of spontaneous subduction initiation in the Izu-Bonin-Mariana arc[J]. NATURE GEOSCIENCE,2015,8(9):728-733. |
| APA | Arculus, Richard J..,Ishizuka, Osamu.,Bogus, Kara A..,Gurnis, Michael.,Hickey-Vargas, Rosemary.,...&Zhang, Zhaohui.(2015).A record of spontaneous subduction initiation in the Izu-Bonin-Mariana arc.NATURE GEOSCIENCE,8(9),728-733. |
| MLA | Arculus, Richard J.,et al."A record of spontaneous subduction initiation in the Izu-Bonin-Mariana arc".NATURE GEOSCIENCE 8.9(2015):728-733. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| A record of spontane（1484KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论