Chemostratigraphy of the extrusive sequence of a Late Cretaceous Neotethyan ophiolite in southern Iran and its significance for the mode and tempo of subduction initiation magmatism and melt evolution in forearc tectonic settings
文献类型：期刊论文
| 作者 | Moghadam, Hadi Shafaii1,10,11; Dilek, Yildirim9; Furnes, Harald7,8; Ishizuka, Osamu6; Chiaradia, Massimo5; Li, Qiu-li4; Karsli, Orhan11; Lucci, Federico3; Asadi, Ali2 |
| 刊名 | JOURNAL OF THE GEOLOGICAL SOCIETY
 |
| 出版日期 | 2023-11-03 |
| 卷号 | 180期号:6页码:16 |
| ISSN号 | 0016-7649 |
| DOI | 10.1144/jgs2023-080 |
| 英文摘要 | Chemostratigraphy of lavas in extrusive sequences of modern and ancient forearc environments provides significant information on oceanic crust formation through progressive stages of melt evolution from subduction initiation magmatism (SIM) to arc infancy, and arc maturation-related magmatism. We present here new trace element and radiogenic Sr-Nd-Pb isotopic data from a Late Cretaceous ophiolite in the Outer Zagros Belt of southern Iran and discuss its magmatic development through SIM in a Neotethyan forearc setting. Initial volcanism produced the stratigraphically oldest boninitic (BON) lavas in the Haji-Abad ophiolite whose trace element ratios as well as Pb isotopic signatures indicate a refractory mantle source, which was contaminated by subducting slab-derived fluids. The BON lavas change structurally upwards into island-arc tholeiitic (IAT) lavas and their fractionated felsic derivatives that display isotopic evidence for the contribution of sediment-derived melts in their magmatic source(s). This melt evolution pattern of the Haji-Abad ophiolite marks a major difference from the progressive melt evolution trends reported from the Izu-Bonin-Mariana (IBM) forearc lava sequence, which starts at the bottom with forearc basalts (FAB) phasing up-section into BON and IAT affinity lavas. IAT lavas in the IBM are in turn overlain by calc-alkaline (CAL) lavas. Our geochemical modelling points to a probable existence of a less depleted, pre-subduction mantle whose partial melting probably generated primary magmas before the eruption of boninitic lavas, although the record of such magmas is missing in the Haji-Abad ophiolite. Our comparison of the chemostratigraphy of the Outer Zagros ophiolites with the documented record of subduction initiation generated volcanic rocks in the other Neotethyan ophiolites in the region and the IBM forearc setting strongly suggests that there is no single rule or template for SIM. |
| WOS关键词 | IZU-BONIN-MARIANA ; PLATINUM-GROUP ELEMENTS ; SANANDAJ-SIRJAN ZONE ; ZIRCON U-PB ; ULTRAMAFIC COMPLEX ; NEYRIZ OPHIOLITE ; TROODOS OPHIOLITE ; SEMAIL-OPHIOLITE ; OMAN OPHIOLITE ; GEOCHEMISTRY |
| 资助项目 | TUBITAK (the Scientific and Technological Research Council of Turkey)[122C146] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | GEOLOGICAL SOC PUBL HOUSE |
| WOS记录号 | WOS:001091053100001 |
| 资助机构 | TUBITAK (the Scientific and Technological Research Council of Turkey) ; TUBITAK (the Scientific and Technological Research Council of Turkey) ; TUBITAK (the Scientific and Technological Research Council of Turkey) ; TUBITAK (the Scientific and Technological Research Council of Turkey) ; TUBITAK (the Scientific and Technological Research Council of Turkey) ; TUBITAK (the Scientific and Technological Research Council of Turkey) ; TUBITAK (the Scientific and Technological Research Council of Turkey) ; TUBITAK (the Scientific and Technological Research Council of Turkey) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110704]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Moghadam, Hadi Shafaii |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China 2.Shahrood Univ Technol, Fac Earth Sci, Dept Petrol & Econ Geol, Shahrood, Iran 3.Univ Bari, Dept Earth & Geoenvironm Sci, I-70125 Bari, Italy 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 5.Univ Geneva, Dept Earth Sci, Geneva, Switzerland 6.Geol Survey Japan, AIST Cent 7, , 1-1-1 Higashi, Tsukuba, Ibaraki 3058567, Japan 7.Univ Bergen, Dept Earth Sci, N-5007 Bergen, Norway 8.Univ Bergen, Ctr Geobiol, N-5007 Bergen, Norway 9.Miami Univ, Dept Geol & Environm Earth Sci, Oxford, OH 45056 USA 10.Damghan Univ, Sch Earth Sci, Damghan 3671641167, Iran |
| 推荐引用方式 GB/T 7714 | Moghadam, Hadi Shafaii,Dilek, Yildirim,Furnes, Harald,et al. Chemostratigraphy of the extrusive sequence of a Late Cretaceous Neotethyan ophiolite in southern Iran and its significance for the mode and tempo of subduction initiation magmatism and melt evolution in forearc tectonic settings[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2023,180(6):16. |
| APA | Moghadam, Hadi Shafaii.,Dilek, Yildirim.,Furnes, Harald.,Ishizuka, Osamu.,Chiaradia, Massimo.,...&Asadi, Ali.(2023).Chemostratigraphy of the extrusive sequence of a Late Cretaceous Neotethyan ophiolite in southern Iran and its significance for the mode and tempo of subduction initiation magmatism and melt evolution in forearc tectonic settings.JOURNAL OF THE GEOLOGICAL SOCIETY,180(6),16. |
| MLA | Moghadam, Hadi Shafaii,et al."Chemostratigraphy of the extrusive sequence of a Late Cretaceous Neotethyan ophiolite in southern Iran and its significance for the mode and tempo of subduction initiation magmatism and melt evolution in forearc tectonic settings".JOURNAL OF THE GEOLOGICAL SOCIETY 180.6(2023):16. |
入库方式： OAI收割
来源：地质与地球物理研究所
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