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Diachronous initiation of post-collisional magmatism in the Arabia-Eurasia collision zone
Lin, Yu-Chin1; Chung, Sun-Lin1,2; Bingol, A. Feyzi3; Yang, Liekun4; Okrostsvaridze, Avtandil5; Pang, Kwan-Nang2; Lee, Hao-Yang2; Lin, Te-Hsien1
2020-03-01
Source PublicationLITHOS
ISSN0024-4937
Volume356Pages:15
AbstractThe continental collision between Arabia and Eurasia which gave rise to the Caucasus-Iran-Anatolia (CIA) volcanic province provides a unique opportunity for understanding collisional zone magmatism. This study reports a comprehensive dataset of ages and geochemical compositions of volcanic rocks formed during the initial phase of post-collisional magmatism in the CIA province. The age data indicate a diachronous onset of volcanism that began similar to 17 Ma in SE Anatolia, and propagated northward from similar to 11 to 9 Ma toward NE Anatolia and NW Iran. The rocks are characteristically bimodal, with dominantly basic (SiO2 = 48-52 wt%) and silicic (SiO2 = 58-71 wt%) components that feature significant isotopic variations (epsilon Nd = +6 to -5), suggesting two principal magma sources: (1) a juvenile mantle-derived component, and (2) an older continental crust component. We therefore attribute the volcanic initiation to a migrating post-collisional extension regime caused by the successive breakoff of subducted Neo-Tethyan slabs. Subsequent volcanism that began from -6.5 Ma resulted in a wide spectrum of calc-alkaline and alkaline rocks, with mafic to felsic lithologies in the entire province. From similar to 2 Ma, volcanism ceased in the western CIA province, and started propagating eastward and southeastward to SE Iran, following the Urumieh-Dokhtar magmatic belt, consistent with the notion of an oblique continental collision between Arabia and Eurasia. (C) 2020 Elsevier B.V. All rights reserved.
KeywordPost-collisional magmatism CIA volcanic province Diachronous initiation Bimodal composition Oblique collision Arabia Eurasia
DOI10.1016/j.lithos.2020.105394
Funding OrganizationMinistry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan)
WOS KeywordU-PB AGE ; EASTERN ANATOLIA ; QUATERNARY VOLCANISM ; CENOZOIC VOLCANISM ; EVOLUTION ; AREA ; CONSTRAINTS ; PLATEAU ; TURKEY ; GEOCHEMISTRY
Language英语
Funding ProjectMinistry of Science and Technology, Republic of China (Taiwan)[MOST108-2639-M-001-002-ASP]
Funding OrganizationMinistry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan) ; Ministry of Science and Technology, Republic of China (Taiwan)
WOS Research AreaGeochemistry & Geophysics ; Mineralogy
WOS SubjectGeochemistry & Geophysics ; Mineralogy
WOS IDWOS:000520941500021
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95492
Collection岩石圈演化国家重点实验室
Corresponding AuthorChung, Sun-Lin
Affiliation1.Natl Taiwan Univ, Dept Geosci, Taipei, Taiwan
2.Acad Sinica, Inst Earth Sci, Taipei 11529, Taiwan
3.Firat Univ, Dept Geol Engn, Elazig, Turkey
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
5.Ilia State Univ, Inst Earth Sci, Tbilisi, Georgia
Recommended Citation
GB/T 7714
Lin, Yu-Chin,Chung, Sun-Lin,Bingol, A. Feyzi,et al. Diachronous initiation of post-collisional magmatism in the Arabia-Eurasia collision zone[J]. LITHOS,2020,356:15.
APA Lin, Yu-Chin.,Chung, Sun-Lin.,Bingol, A. Feyzi.,Yang, Liekun.,Okrostsvaridze, Avtandil.,...&Lin, Te-Hsien.(2020).Diachronous initiation of post-collisional magmatism in the Arabia-Eurasia collision zone.LITHOS,356,15.
MLA Lin, Yu-Chin,et al."Diachronous initiation of post-collisional magmatism in the Arabia-Eurasia collision zone".LITHOS 356(2020):15.
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