globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2015.11.011
Scopus记录号: 2-s2.0-84949456221
论文题名:
A mid to late Holocene cryptotephra framework from eastern North America
作者: Mackay H.; Hughes P.D.M.; Jensen B.J.L.; Langdon P.G.; Pyne-O'Donnell S.D.F.; Plunkett G.; Froese D.G.; Coulter S.; Gardner J.E.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 132
起始页码: 101
结束页码: 113
语种: 英语
英文关键词: Cryptotephra ; Late Holocene ; North America ; Peatlands ; Tephra ; Volcanic ash
Scopus关键词: Tropics ; Wetlands ; Cryptotephra ; Late Holocene ; North America ; Peat land ; Tephra ; Volcanic ash ; Volcanoes ; ash ; Holocene ; peatland ; proxy climate record ; tephra ; tephrochronology ; volcanic ash ; Alaska ; Atlantic Ocean ; Atlantic Ocean ; Federal District [Mexico] ; France ; Hokkaido ; Japan ; Kamchatka ; Maine Basin ; Maine et Loire ; Mexico City ; Mexico [North America] ; Newfoundland Basin ; North America ; Pacific Ocean ; Pacific Ocean (Northwest) ; Pays de la Loire ; Russian Federation ; United States
英文摘要: Holocene cryptotephras of Alaskan and Pacific Northwestern origin have recently been detected ca. 7000 km away on the east coast of North America. This study extends the emerging North American tephrochronological framework by geochemically characterising seventeen cryptotephra layers from four newly explored peatlands. All detected tephras were deposited during the late Holocene, with no horizons present in the peat between ca. 3000-5000 years ago. The prevalence of the Alaskan White River Ash eastern lobe (AD 847 ± 1) is confirmed across the eastern seaboard from Newfoundland to Maine and a regional depositional pattern from Mount St Helens Set W (AD 1479-1482) is presented. The first occurrences of four additional cryptotephras in eastern North America are described, three of which may originate from source regions in Mexico, Kamchatka (Russia) and Hokkaido (Japan). The possibility of such tephras reaching eastern North America presents the opportunity to link palaeo-archives from the tropics and eastern Asia with those from the western Atlantic seaboard, aiding inter-regional comparisons of proxy-climatic records. © 2015 The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59710
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作者单位: Geography and Environment, University of Southampton, Southampton, United Kingdom; School of Geography, Archaeology and Palaeoecology, Queen's University Belfast, Belfast, United Kingdom; Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada; Omagh Minerals Ltd, 56 Botera Upper Rd., Omagh, United Kingdom; Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at AustinTX, United States; Royal Alberta Museum, Edmonton, AB, Canada

Recommended Citation:
Mackay H.,Hughes P.D.M.,Jensen B.J.L.,et al. A mid to late Holocene cryptotephra framework from eastern North America[J]. Quaternary Science Reviews,2016-01-01,132
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