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Can I read New early oligocene zircon U-Pb dates for the ‘Miocene’ Wenshan Basin, Yunnan, China: Biodiversity and paleoenvironment on EtoBox?
New early oligocene zircon U-Pb dates for the ‘Miocene’ Wenshan Basin, Yunnan, China: Biodiversity and paleoenvironment by Yimin Tian; Robert A. Spicer; Jian Huang; Zhekun Zhou; Tao Su; Mike Widdowson; Linbo Jia; Shihu Li; Wenjian Wu; Li Xue; Penghui Luo; Shitao Zhang is a Earth and Planetary Sciences article available to read on EtoBox.
What is New early oligocene zircon U-Pb dates for the ‘Miocene’ Wenshan Basin, Yunnan, China: Biodiversity and paleoenvironment about?
## U-Pb dating The sedimentary basins of Yunnan, Southwest China, record detailed histories of Cenozoic paleoenvironmental change. They track regional tectonic and palaeobiological evolution, both of which are critically important for the development of modern floral diversity in southwestern China and throughout Asia more generally. However, to be useful, the sedimentary archives within the basins have to be placed within a well-constrained timeframe independent of biostratigraphy. Using high resolution U-Pb dating, we redefine the age of fossil-bearing strata in the Wenshan Basin. Regarded as Miocene for the last half century, these basin sediments encompass 30 ± 2 and 32 ± 1 Ma early Oligocene tuffaceous horizons, thus indicating a significantly greater antiquity than previously recognized. Together with other regional age revisions our result points to widespread Yunnan basin and orographic development as largely having taken place by the end Paleogene. This age revision provides an important new perspective on the preserved biotas and their evolution in Yunnan, and especially our understanding of the origin of Asian biodiversity which, regionally, had a near-modern composition
Who reads New early oligocene zircon U-Pb dates for the ‘Miocene’ Wenshan Basin, Yunnan, China: Biodiversity and paleoenvironment?
It is typically read by researchers, students, and practitioners in Earth and Planetary Sciences.
- Author
- Yimin Tian; Robert A. Spicer; Jian Huang; Zhekun Zhou; Tao Su; Mike Widdowson; Linbo Jia; Shihu Li; Wenjian Wu; Li Xue; Penghui Luo; Shitao Zhang
- Publisher
- Elsevier BV
- Published
- 2021
- Language
- EN
- Field
- Earth and Planetary Sciences (Physical Sciences)