Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1130/B32060.1 |
Carbonate stable and clumped isotopic evidence for late Eocene moderate to high elevation of the east-central Tibetan Plateau and its geodynamic implications | |
Li, Lin1; Fan, Majie1; Davila, Nathaniel2,3; Jesmok, Greg2,3; Mitsunaga, Bryce2,3; Tripati, Aradhna2,3,4,5; Orme, Devon6 | |
2019-05-01 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN
![]() |
ISSN | 0016-7606 |
EISSN | 1943-2674 |
出版年 | 2019 |
卷号 | 131页码:831-844 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France |
英文摘要 | The topographic history of mountain belts reflects changes in lithospheric structure and rheology and exerts an influence on climate. Although substantial progress has been made to constrain the growth history of the southern Tibetan Plateau, the timing and geodynamic drivers for surface uplift of the central plateau remain poorly constrained. Here, we used both carbonate clumped isotope geothermometry and modified stable isotope-based paleoaltimetry that considers proportional mixing of two major moisture sources to infer late Eocene paleoelevations of the Nangqian Basin in the east-central Tibetan Plateau. The mean clumped isotope temperature, T(Delta(47)), of minimally altered late Eocene lacustrine carbonates is 30.0 degrees C, and the reconstructed least-evaporated paleowater delta O-18(mw) value is -9.8 parts per thousand. These two independent approaches indicate that during late Eocene time, the Nangqian Basin floor was 2.7 (+0.6/-0.4) km above sea level, and the hypsometric mean elevation of surrounding mountains was 3.0 +/- 1.1 km above sea level. These estimates are 1.1-1.2 km lower than their modern counterparts. The moderate to high late Eocene paleoelevation of the Nangqian Basin suggests that Eocene upper-crustal shortening and thickening can explain most, but not all, of the surface uplift of the east-central Tibetan Plateau. The additional 1.1-1.2 km (at most) of post-late Eocene elevation increase to the present height may have been a result of either lower-crustal flow or slab detachment. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000466511700007 |
WOS关键词 | ASIAN MONSOONS ; TEMPERATURE ; EVOLUTION ; PALEOALTIMETRY ; DOLOMITE ; UPLIFT ; BASIN ; FRACTIONATION ; CALIBRATION ; DELTA-O-18 |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182900 |
专题 | 地球科学 |
作者单位 | 1.Univ Texas Arlington, Dept Earth & Environm Sci, Arlington, TX 76019 USA; 2.Univ Calif Los Angeles, Inst Environm & Sustainabil, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA; 3.Univ Calif Los Angeles, Inst Environm & Sustainabil, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 4.Univ Brest, European Inst Marine Sci IUEM, UMR 6538, Domaines Ocean, Rue Dumont DUrville, F-29280 Plouzane, France; 5.IFREMER, F-29280 Plouzane, France; 6.Montana State Univ, Dept Earth Sci, Bozeman, MT 59717 USA |
推荐引用方式 GB/T 7714 | Li, Lin,Fan, Majie,Davila, Nathaniel,et al. Carbonate stable and clumped isotopic evidence for late Eocene moderate to high elevation of the east-central Tibetan Plateau and its geodynamic implications[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2019,131:831-844. |
APA | Li, Lin.,Fan, Majie.,Davila, Nathaniel.,Jesmok, Greg.,Mitsunaga, Bryce.,...&Orme, Devon.(2019).Carbonate stable and clumped isotopic evidence for late Eocene moderate to high elevation of the east-central Tibetan Plateau and its geodynamic implications.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,131,831-844. |
MLA | Li, Lin,et al."Carbonate stable and clumped isotopic evidence for late Eocene moderate to high elevation of the east-central Tibetan Plateau and its geodynamic implications".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 131(2019):831-844. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论