DOI: 10.1016/j.palaeo.2014.10.001
论文题名: Recent coastal evolution and sea-level rise, Setiu Wetland, Peninsular Malaysia
作者: Culver S.J. ; Leorri E. ; Mallinson D.J. ; Corbett D.R. ; Shazili N.A.M.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 417 起始页码: 406
结束页码: 421
语种: 英语
英文关键词: Coastal evolution
; Foraminifera
; Malaysia
; Sea-level rise
英文摘要: Sea-level reconstructions based on foraminiferal assemblage data are common for temperate salt-marsh settings. In comparison, the widespread mangrove swamps of equatorial to subtropical settings have received considerably less attention due to enhanced taphonomic loss of specimens, extensive bioturbation, abundant infaunal foraminifera and irregular intertidal topography. The tropics, however, provide the best possible estimate of "eustatic function" and thus are important for testing earth-ice models. In this paper, we use foraminiferal data, in a chronologic framework provided by optically stimulated luminescence, radiocarbon and Pb-210 age estimates, to determine coastal evolution and rates of sea-level rise in the Setiu wetland of northeastern peninsular Malaysia on the western margin of the southern South China Sea over the past ca. 200. years.Foraminiferal data from three surface transects across fringing mangrove swamps were used to interpret four cores from mid to high mangrove swamp settings. Patterns of foraminiferal distribution were determined by correspondence analysis, canonical correspondence analysis and detrended canonical correspondence analysis of dead assemblage data. We used weighted averaging as the transfer function model to reconstruct sea-level curves for the cores and to provide a composite reconstruction for the last ca. 200years. Based on one C-14 estimate, sea level rose during the 19th century at 1.26mmyr-1. The rate increased to 3.2±0.6mmyr-1.around 1900CE, roughly coincident with rate increases recorded globally. However, the 20th century rate in the Setiu wetland is considerably greater than that of global estimates (ca. 1.8mmyr-1) for this period. Rates of sea-level rise in the Gulf of Thailand (immediately to the north of the Setiu wetland) determined from GPS-corrected tide gauge data and multi-satellite altimetry are geographically variable but also greater than the global rate. The data from the Setiu wetland provide the first foraminifera-based sea-level reconstruction of the past few hundred years from the southeastern South China Sea (SCS) and they represent the first time the early 20th century increase in rate of sea-level rise has been identified using proxy foraminiferal data in an equatorial setting. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69046
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geological Sciences, East Carolina University, Graham 101, Greenville, NC, United States; Institute for Coastal Science and Policy, East Carolina University, Greenville, NC, United States; Institute of Oceanography, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
Recommended Citation:
Culver S.J.,Leorri E.,Mallinson D.J.,et al. Recent coastal evolution and sea-level rise, Setiu Wetland, Peninsular Malaysia[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,417