globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.03.018
论文题名:
Late Cenozoic sea level and the rise of modern rimmed atolls
作者: Toomey M.R.; Ashton A.D.; Raymo M.E.; Perron J.T.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 451
起始页码: 73
结束页码: 83
语种: 英语
英文关键词: Coral ; Dissolution ; Late Miocene ; Oxygen isotope stack ; Reef
英文摘要: Sea-level records from atolls, potentially spanning the Cenozoic, have been largely overlooked, in part because the processes that control atoll form (reef accretion, carbonate dissolution, sediment transport, vertical motion) are complex and, for many islands, unconstrained on million-year timescales. Here we combine existing observations of atoll morphology and corelog stratigraphy from Enewetak Atoll with a numerical model to (1) constrain the relative rates of subsidence, dissolution and sedimentation that have shaped modern Pacific atolls and (2) construct a record of sea level over the past 8.5 million years. Both the stratigraphy from Enewetak Atoll (constrained by a subsidence rate of ~20 m/Myr) and our numerical modeling results suggest that low sea levels (50-125 m below present), and presumably bi-polar glaciations, occurred throughout much of the late Miocene, preceding the warmer climate of the Pliocene, when sea level was higher than present. Carbonate dissolution through the subsequent sea-level fall that accompanied the onset of large glacial cycles in the late Pliocene, along with rapid highstand constructional reef growth, likely drove development of the rimmed atoll morphology we see today. © 2016.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68431
Appears in Collections:过去全球变化的重建

Files in This Item:

There are no files associated with this item.


作者单位: Eastern Geology and Paleoclimate Science Center, United States Geological Survey, Mail Stop 926A, 12201 Sunrise Valley Drive, Reston, VA, United States; Jackson School of Geosciences, University of Texas at Austin, Austin, TX, United States; Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Mail Stop 22, 360 Woods Hole Rd., Woods Hole, MA, United States; Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9W, Palisades, NY, United States; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States

Recommended Citation:
Toomey M.R.,Ashton A.D.,Raymo M.E.,et al. Late Cenozoic sea level and the rise of modern rimmed atolls[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,451
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Toomey M.R.]'s Articles
[Ashton A.D.]'s Articles
[Raymo M.E.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Toomey M.R.]'s Articles
[Ashton A.D.]'s Articles
[Raymo M.E.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Toomey M.R.]‘s Articles
[Ashton A.D.]‘s Articles
[Raymo M.E.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.