Late Cretaceous arc magmatism in the Western Pontides (Turkey) - temporal and chemical changes
文献类型：期刊论文
| 作者 | Saglam, Ezgi4; Duzman, Turgut4; Ay, Cemre5; Okay, Aral I.4,5; Topuz, Gultekin4; Sunal, Gursel5; Ozcan, Ercan5; Altiner, Demir6; Hakyemez, Aynur3; Wang, Jia-Min1 |
| 刊名 | INTERNATIONAL GEOLOGY REVIEW
 |
| 出版日期 | 2023-06-14 |
| 页码 | 24 |
| ISSN号 | 0020-6814 |
| 关键词 | Arc magmatism Pontides Late cretaceous adakites geochemistry U-Pb zircon dating |
| DOI | 10.1080/00206814.2023.2221982 |
| 英文摘要 | During the Late Cretaceous, a magmatic arc extended from the Lesser Caucasus through the northern margin of the Pontides into Srednogorie, Timok, Banat, and Apuseni (ABTS) in the Balkans for a distance of 2700 km. We studied the arc volcanic rocks in three regions in the Western Pontides and reviewed the geological data on the Lesser Caucasus-Pontide-ABTS magmatic arc, which shows several common features. Prior to the start of the arc magmatism, the region underwent uplift and erosion. New and published geochronologic and biostratigraphic data show that magmatism in the Lesser Caucasus-Pontide-ABTS arc started in the Turonian (ca. 93 Ma) peaked in the middle Campanian (80-78 Ma) and became rare and sporadic after the late Campanian (ca. 75 Ma). Magmatism was dominantly calc-alkaline to high-K calc-alkaline and shows typical subduction geochemical signatures. Late Cretaceous volcanism took place in a submarine and extensional environment. In the Lesser Caucasus-Pontide-ABTS belt, the arc volcanic rocks are overlain by Maastrichtian to Palaeocene marine limestones and sandstones, marking the end of the main phase of arc magmatism. However, in the Kefken region in the Western Pontides, Maastrichtian limestone sequence includes a volcanic horizon with a U-Pb zircon age of ca. 71 Ma. The Maastrichtian volcanic rocks show a more varied geochemistry than the older arc volcanic rocks, and include alkaline basalts, calc-alkaline basalts, and adakites. The coeval start of arc magmatism in the 2700-km-long Lesser Caucasus-Pontide-ABTS belt is related to the inception of the Africa-Eurasia convergence at ca. 96 Ma, which is also independently indicated by the beginning of intra-oceanic subduction, inferred from the ages of sub-ophiolite metamorphic rocks in Anatolia. The end of magmatism is linked to a marked decrease in the convergence rate during the Campanian, which was also partitioned between the northern and southern Tethyan subduction zones. |
| WOS关键词 | EASTERN PONTIDES ; NE TURKEY ; BLACK-SEA ; MERSIN OPHIOLITE ; ADAKITE-LIKE ; METAMORPHIC SOLE ; VOLCANIC-ROCKS ; TAVSANLI ZONE ; OROGENIC BELT ; SAKARYA ZONE |
| 资助项目 | Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi[MYL-2019-42471] ; Turkiye Bilimler Akademisi [TUBA] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS INC |
| WOS记录号 | WOS:001003554200001 |
| 资助机构 | Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi ; Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi ; Turkiye Bilimler Akademisi [TUBA] ; Turkiye Bilimler Akademisi [TUBA] ; Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi ; Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi ; Turkiye Bilimler Akademisi [TUBA] ; Turkiye Bilimler Akademisi [TUBA] ; Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi ; Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi ; Turkiye Bilimler Akademisi [TUBA] ; Turkiye Bilimler Akademisi [TUBA] ; Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi ; Bilimsel Arastirma Projeleri Birimi, Istanbul Teknik Universitesi ; Turkiye Bilimler Akademisi [TUBA] ; Turkiye Bilimler Akademisi [TUBA] |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111216]  |
| 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 | Okay, Aral I. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Univ Calif Santa Barbara, Dept Earth Sci, Santa Barbara, CA USA 3.Gen Directorate Mineral Res & Explorat MTA, Dept Geol Res, Ankara, Turkiye 4.Istanbul Tech Univ, Eurasia Inst Earth Sci, Istanbul, Turkiye 5.Istanbul Tech Univ, Fac Mines, Dept Geol Engn, Istanbul, Turkiye 6.Middle East Tech Univ, Dept Geol Engn, Ankara, Turkiye |
| 推荐引用方式 GB/T 7714 | Saglam, Ezgi,Duzman, Turgut,Ay, Cemre,et al. Late Cretaceous arc magmatism in the Western Pontides (Turkey) - temporal and chemical changes[J]. INTERNATIONAL GEOLOGY REVIEW,2023:24. |
| APA | Saglam, Ezgi.,Duzman, Turgut.,Ay, Cemre.,Okay, Aral I..,Topuz, Gultekin.,...&Kylander-Clark, Andrew R. C..(2023).Late Cretaceous arc magmatism in the Western Pontides (Turkey) - temporal and chemical changes.INTERNATIONAL GEOLOGY REVIEW,24. |
| MLA | Saglam, Ezgi,et al."Late Cretaceous arc magmatism in the Western Pontides (Turkey) - temporal and chemical changes".INTERNATIONAL GEOLOGY REVIEW (2023):24. |
入库方式： OAI收割
来源：地质与地球物理研究所
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