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| DOI | 10.1111/ter.12689 |
| Episodic Late Cretaceous to Neogene crustal thickness variation in southern Tibet | |
| Sundell, Kurt E.; Laskowski, Andrew K.; Howlett, Caden; Kapp, Paul; Ducea, Mihai; Chapman, James B.; Ding, Lin | |
| 发表日期 | 2024 |
| ISSN | 0954-4879 |
| EISSN | 1365-3121 |
| 起始页码 | 45 |
| 结束页码 | 52 |
| 卷号 | 36期号:1 |
| 英文摘要 | Recent advancements in quantitatively estimating the thickness of Earth's crust in the geologic past provide an opportunity to test hypotheses explaining the tectonic evolution of southern Tibet. Outstanding debate on southern Tibet's Cenozoic geological evolution is complicated by poorly understood Mesozoic tectonics. We present new U-Pb geochronology and trace element chemistry of detrital zircon from modern rivers draining the Gangdese Mountains in southern Tibet. Results are similar to recently published quantitative estimates of crustal thickness derived from intermediate-composition whole rock records and show similar to 30 km of crustal thinning from 90 to 70 Ma followed by thickening to near-modern values from 70 to 40 Ma. These results extend evidence of Late Cretaceous north-south extension along strike to the west by similar to 200 km, and support a tectonic model in which an east-west striking back-arc basin formed along Eurasia's southern margin during slab rollback, prior to terminal collision of India with Eurasia. |
| 关键词 | crustal thicknessEu anomalyrare earth elementTibettrace elementzircon |
| 英文关键词 | GANGDESE MOUNTAINS; IGNEOUS ZIRCON; EVOLUTION; COLLISION; EXTENSION; LHASA; MANTLE; ASIA; TECTONICS; PLATEAU |
| WOS研究方向 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001083371400001 |
| 来源期刊 | TERRA NOVA
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/282587 |
| 作者单位 | Idaho; Idaho State University; Montana State University System; Montana State University Bozeman; University of Arizona; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS |
| 推荐引用方式 GB/T 7714 | Sundell, Kurt E.,Laskowski, Andrew K.,Howlett, Caden,et al. Episodic Late Cretaceous to Neogene crustal thickness variation in southern Tibet[J]. 中国科学院青藏高原研究所,2024,36(1). |
| APA | Sundell, Kurt E..,Laskowski, Andrew K..,Howlett, Caden.,Kapp, Paul.,Ducea, Mihai.,...&Ding, Lin.(2024).Episodic Late Cretaceous to Neogene crustal thickness variation in southern Tibet.TERRA NOVA,36(1). |
| MLA | Sundell, Kurt E.,et al."Episodic Late Cretaceous to Neogene crustal thickness variation in southern Tibet".TERRA NOVA 36.1(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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