DOI: 10.1016/j.quascirev.2017.04.031
Scopus记录号: 2-s2.0-85019584380
论文题名: A full holocene tephrochronology for the Kamchatsky Peninsula region: Applications from Kamchatka to North America
作者: Ponomareva V. ; Portnyagin M. ; Pendea I.F. ; Zelenin E. ; Bourgeois J. ; Pinegina T. ; Kozhurin A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 168 起始页码: 101
结束页码: 122
语种: 英语
英文关键词: Age modeling
; Data analysis
; Holocene
; Kamchatka
; Northern Pacific
; Paleogeography
; Tephrochronology
; Volcanic glass chemistry
Scopus关键词: Ash handling
; Chemical analysis
; Data reduction
; Electron probe microanalysis
; Glass
; Microanalysis
; Age modeling
; Holocenes
; Kamchatka
; Northern Pacific
; Paleogeography
; Tephrochronology
; Volcanic glass
; Volcanoes
英文摘要: Geochemically fingerprinted widespread tephra layers serve as excellent marker horizons which can directly link and synchronize disparate sedimentary archives and be used for dating various deposits related to climate shifts, faulting events, tsunami, and human occupation. In addition, tephras represent records of explosive volcanic activity and permit assessment of regional ashfall hazard. In this paper we report a detailed Holocene tephrochronological model developed for the Kamchatsky Peninsula region of eastern Kamchatka (NW Pacific) based on ∼2800 new electron microprobe analyses of single glass shards from tephra samples collected in the area as well as on previously published data. Tephra ages are modeled based on a compilation of 223 14C dates, including published dates for Shiveluch proximal tephra sequence and regional marker tephras; new AMS 14C dates; and modeled calibrated ages from the Krutoberegovo key site. The main source volcanoes for tephra in the region are Shiveluch and Kliuchevskoi located 60–100 km to the west. In addition, local tephra sequences contain two tephras from the Plosky volcanic massif and three regional marker tephras from Ksudach and Avachinsky volcanoes located in the Eastern volcanic front of Kamchatka. This tephrochronological framework contributes to the combined history of environmental change, tectonic events, and volcanic impact in the study area and farther afield. This study is another step in the construction of the Kamchatka-wide Holocene tephrochronological framework under the same methodological umbrella. Our dataset provides a research reference for tephra and cryptotephra studies in the northwest Pacific, the Bering Sea, and North America. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59185
Appears in Collections: 过去全球变化的重建
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作者单位: Institute of Volcanology and Seismology, Piip Boulevard 9, Petropavlovsk-Kamchatsky, Russian Federation; GEOMAR Helmholtz Center for Ocean Research Kiel, Wischhofstrasse 1-3, Kiel, Germany; V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Kosygin St. 19, Moscow, Russian Federation; Lakehead University, Sustainability Sciences Department, 500 University Avenue, Orillia, ON, Canada; Geological Institute, Pyzhevsky Lane 7, Moscow, Russian Federation; Department of Earth and Space Sciences, University of Washington, 4000 15th Avenue NE, Seattle, WA, United States
Recommended Citation:
Ponomareva V.,Portnyagin M.,Pendea I.F.,et al. A full holocene tephrochronology for the Kamchatsky Peninsula region: Applications from Kamchatka to North America[J]. Quaternary Science Reviews,2017-01-01,168