Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1038/s41467-019-13117-1 |
| Cr-spinel records metasomatism not petrogenesis of mantle rocks | |
| El Dien, Hamed Gamal1,2; Arai, Shoji3; Doucet, Luc-Serge1; Li, Zheng-Xiang1; Kil, Youngwoo4; Fougerouse, Denis5,6; Reddy, Steven M.5,6; Saxey, David W.6; Hamdy, Mohamed2 | |
| 通讯作者 | El Dien, Hamed Gamal |
| 来源期刊 | NATURE COMMUNICATIONS
 |
| ISSN | 2041-1723 |
| 出版年 | 2019 |
| 卷号 | 10 |
| 英文摘要 | Mantle melts provide a window on processes related to global plate tectonics. The composition of chromian spinel (Cr-spinel) from mafic-ultramafic rocks has been widely used for tracing the geotectonic environments, the degree of mantle melting and the rate of midocean ridge spreading. The assumption is that Cr-spinel's core composition (Cr# = Cr/(Cr + Al)) is homogenous, insensitive to post-formation modification and therefore a robust petrogenetic indicator. However, we demonstrate that the composition of Cr-spinel can be modified by fluid/melt-rock interactions in both sub-arc and sub-mid oceanic mantle. Metasomatism can produce Al-Cr heterogeneity in Cr-spinel that lowers the Cr/Al ratio, and therefore modifies the Cr#, making Cr# ineffective as a geotectonic and mantle melting indicator. Our analysis also demonstrates that Cr-spinel is a potential sink for fluid-mobile elements, especially in subduction zone environments. The heterogeneity of Cr# in Cr-spinel can, therefore, be used as an excellent tracer for metasomatic processes. |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Australia ; Egypt ; Japan ; South Korea |
| 开放获取类型 | Green Published, gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000495393400003 |
| WOS关键词 | MID-ATLANTIC RIDGE ; ANDESITIC AVACHA VOLCANO ; MARIANA FORE-ARC ; PERIDOTITE XENOLITHS ; SERPENTINIZED PERIDOTITES ; ABYSSAL PERIDOTITES ; SPREADING RIDGE ; EASTERN DESERT ; WEDGE BENEATH ; KAMCHATKA ARC |
| WOS类目 | Multidisciplinary Sciences |
| WOS研究方向 | Science & Technology - Other Topics |
| EI主题词 | 2019-11-08 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/310794 |
| 作者单位 | 1.Curtin Univ, Sch Earth & Planetary Sci, Inst Geosci Res TIGeR, Earth Dynam Res Grp, GPO Box U1987, Perth, WA 6845, Australia; 2.Tanta Univ, Fac Sci, Geol Dept, Tanta 31527, Egypt; 3.Kanazawa Univ, Sch Nat Syst, Dept Earth Sci, Kanazawa, Ishikawa 9201192, Japan; 4.Chonnam Natl Univ, Coll Engn, Dept Energy & Resources Engn, Gwangju, South Korea; 5.Curtin Univ, Inst Geosci Res TIGeR, Sch Earth & Planetary Sci, GPO Box U1987, Perth, WA 6845, Australia; 6.Curtin Univ, John de Laeter Ctr, Adv Resource Characterisat Facil, Geosci Atom Probe, GPO Box U1987, Perth, WA 6845, Australia |
| 推荐引用方式 GB/T 7714 | El Dien, Hamed Gamal,Arai, Shoji,Doucet, Luc-Serge,et al. Cr-spinel records metasomatism not petrogenesis of mantle rocks[J],2019,10. |
| APA | El Dien, Hamed Gamal.,Arai, Shoji.,Doucet, Luc-Serge.,Li, Zheng-Xiang.,Kil, Youngwoo.,...&Hamdy, Mohamed.(2019).Cr-spinel records metasomatism not petrogenesis of mantle rocks.NATURE COMMUNICATIONS,10. |
| MLA | El Dien, Hamed Gamal,et al."Cr-spinel records metasomatism not petrogenesis of mantle rocks".NATURE COMMUNICATIONS 10(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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