DOI: 10.1016/j.quascirev.2018.05.018
Scopus记录号: 2-s2.0-85048410898
论文题名: A revised sea level history for the northern Strait of Georgia, British Columbia, Canada
作者: Fedje D. ; McLaren D. ; James T.S. ; Mackie Q. ; Smith N.F. ; Southon J.R. ; Mackie A.P.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 192 起始页码: 300
结束页码: 316
语种: 英语
Scopus关键词: Architecture
; Glacial geology
; Archaeological site
; British Columbia , Canada
; Climatic variation
; Critical inputs
; Late Pleistocene
; Meltwater pulse
; Relative sea level
; Sea-level reconstruction
; Sea level
; climate variation
; Holocene
; meltwater
; paleoceanography
; Pleistocene
; satellite imagery
; sea level change
; shoreline change
; terrace
; transgression
; British Columbia
; Canada
; Discovery Islands
; Pacific Coast [Canada]
; Pacific Coast [North America]
; Quadra Island
; Strait of Georgia
英文摘要: A refined relative sea level (RSL) history spanning the past 14,300 calendar years is described for the Quadra Island area in the northern Strait of Georgia on the Pacific coast of Canada. Here marine shorelines dating to the time of earliest post-glacial emergence are at least 197 m above present-day sea-level at 14,300 years ago. RSL fell rapidly, reaching two to three metres above present-day by 12,000 years ago. A series of raised marine terraces at ca. 4, 10 and 30 m above present day high tide level suggest the rapid fall in RSL during early post-glacial time may have been briefly interrupted by factors such as regional ice advances and recessions and global meltwater pulses generated by climatic variations. A possible minor sea-level transgression of 1–2 m around 12,000 to 11,400 years ago was followed by slow regression to modern levels. This sea-level reconstruction is providing critical input for efficient discovery and cataloging of late Pleistocene and early Holocene archaeological sites on ancient raised shorelines in the region. Integration of the sea-level history with LiDAR imagery has proven successful in locating a number of archaeological sites on these ancient shorelines. © 2018 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112134
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Hakai Institute, Box 309, Heriot Bay, BC V0P 1H0, Canada; Department of Anthropology, University of Victoria, PO Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada; Geological Survey of Canada – Pacific Division, 9860 West Saanich Road, Sidney, BC V8L 4B2, Canada; School of Earth and Ocean Sciences, University of Victoria, PO Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada; University of California Irvine, Department of Earth System Science, B321 Croul Hall, Irvine, CA 92697-3100, Canada
Recommended Citation:
Fedje D.,McLaren D.,James T.S.,et al. A revised sea level history for the northern Strait of Georgia, British Columbia, Canada[J]. Quaternary Science Reviews,2018-01-01,192