DOI: 10.1016/j.gloplacha.2015.05.010
论文题名: A post-glacial relative sea-level curve from Fiordland, New Zealand
作者: Dlabola E.K. ; Wilson G.S. ; Gorman A.R. ; Riesselman C.R. ; Moy C.M.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 131 起始页码: 104
结束页码: 114
语种: 英语
英文关键词: Fiordland
; Holocene
; Late Pleistocene
; Meltwater Pulse 1b
; New Zealand
; Sea-level rise
Scopus关键词: Glacial geology
; Lakes
; Seawater
; Seismic response
; Seismic waves
; Seismology
; Fiordland
; Holocenes
; Late Pleistocene
; Meltwater pulse
; New zealand
; Sea level rise
; Sea level
; bedrock
; geochronology
; Holocene
; lacustrine environment
; Last Glacial Maximum
; marine environment
; marine sediment
; microfossil
; moraine
; paleoenvironment
; Pleistocene
; Postglacial
; radiocarbon dating
; sea level change
; seawater
; sediment core
; seismic data
; transgression
; Fiordland
; New Zealand
; Pacific Ocean
; South Island
; Southland
; Tasman Sea
英文摘要: The modern fjords of southwest New Zealand were previously stranded lakes isolated from the Tasman Sea by bedrock and moraine sills following the retreat of glaciers at the Last Glacial Maximum. The isolated lake basins were subsequently inundated with sea water when sea-level rise overtopped the sills. A record of the lacustrine-to-marine environmental transition is preserved in the fjord basin sediments and is identified in two New Zealand fjords with high-resolution seismic data and paleoenvironmental analysis of sediment cores. Seismic data are used to constrain the maximum sill depth and microfossil assemblages are used to track the lacustrine-to-marine transition. Chronology is based on fourteen radiocarbon ages.A relative sea-level curve for Fiordland, New Zealand is constructed based on sill depths and age constraints on the marine incursion. The sea-level curve allows insights into estimated uplift rates for Fiordland during the Holocene. From a lowstand of at least 107. mbsl 14,750. yr ago, these data reveal a stepwise transgression. Meltwater Pulse 1b is identified between 12,400 and 11,400. yr ago, with a second acceleration in sea-level rise observed 9700. yr ago. This record contributes a new sea-level curve for a mid-latitude (45°S) Southern Hemisphere location as well as new evidence for Meltwater Pulse 1b. © 2015 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930664331&doi=10.1016%2fj.gloplacha.2015.05.010&partnerID=40&md5=a2d33d81b9cde52b5ff1b4e386174e99
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11515
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Department of Marine Science, University of Otago, PO Box 56, Dunedin, New Zealand
Recommended Citation:
Dlabola E.K.,Wilson G.S.,Gorman A.R.,et al. A post-glacial relative sea-level curve from Fiordland, New Zealand[J]. Global and Planetary Change,2015-01-01,131.