DOI: 10.1016/j.quascirev.2014.05.023
Scopus记录号: 2-s2.0-84903759704
论文题名: A post-glacial sea level hinge on the central Pacific coast of Canada
作者: McLaren D. ; Fedje D. ; Hay M.B. ; Mackie Q. ; Walker I.J. ; Shugar D.H. ; Eamer J.B.R. ; Lian O.B. ; Neudorf C.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 97 起始页码: 148
结束页码: 169
语种: 英语
英文关键词: Archaeology
; Central Pacific coast of Canada
; Coastal migration route
; Eustatic
; Isostatic
; Northeast Pacific Rim
; Northwest coast
; Sea level change
; Sea level hinge
Scopus关键词: Coastal zones
; Glacial geology
; Structural geology
; Archaeology
; Coastal migration route
; Eustatic
; Isostatic
; Pacific coasts
; Sealevel change
; Sea level
; coastal zone
; Last Glacial Maximum
; Postglacial
; radiocarbon dating
; sea level change
; Canada
; Pacific Coast [Canada]
; Pacific Coast [North America]
; Bacillariophyta
英文摘要: Post-glacial sea level dynamics during the last 15,000 calendar years are highly variable along the Pacific coast of Canada. During the Last Glacial Maximum, the Earth's crust was depressed by ice loading along the mainland inner coast and relative sea levels were as much as 200m higher than today. In contrast, some outer coastal areas experienced a glacial forebulge (uplift) effect that caused relative sea levels to drop to as much as 150m below present levels. Between these inner and outer coasts, we hypothesize that there would have been an area where sea level remained relatively stable, despite regional and global trends in sea level change. To address this hypothesis, we use pond basin coring, diatom analysis, archaeological site testing, sedimentary exposure sampling, and radiocarbon dating to construct sea level histories for the Hakai Passage region. Our data include 106 newly reported radiocarbon ages from key coastal sites that together support the thesis that this area has experienced a relatively stable sea level over the last 15,000 calendar years. These findings are significant in that they indicate a relatively stable coastal environment amenable to long-term human occupation and settlement of the area. Our results will help inform future archaeological investigations in the region. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60215
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Anthropology, University of Victoria, PO Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada; Hakai Beach Institute, Calvert Island, BC, Canada; Département des sciences humaines and Laboratoire des sciences aquatiques, Université du Québec à Chicoutimi, 555, boulevard de l'Université, Chicoutimi, QC G7H 2B1, Canada; Coastal Erosion and Dune Dynamics Laboratory, Department of Geography, University of Victoria, P.O. Box 3060, Station CSC, Victoria, BC V8R 3R4, Canada; Luminescence Dating Laboratory, Department of Geography, University of the Fraser Valley, 33844 King Road, Abbotsford, BC V2S 7M8, Canada
Recommended Citation:
McLaren D.,Fedje D.,Hay M.B.,et al. A post-glacial sea level hinge on the central Pacific coast of Canada[J]. Quaternary Science Reviews,2014-01-01,97