DOI: 10.1016/j.earscirev.2020.103385
论文题名: Magnetic fabric of loess and its significance in Pleistocene environment reconstructions
作者: Bradák B. ; Seto Y. ; Chadima M. ; Kovács J. ; Tanos P. ; Újvári G. ; Hyodo M.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2020
卷: 210 语种: 英语
中文关键词: Loess and paleosol successions
; Magnetic fabric
; Paleoenvironment
; Quaternary
英文关键词: climate modeling
; loess
; magnetic anisotropy
; magnetic fabric
; paleoenvironment
; paleosol
; Pleistocene
; Quaternary
; reconstruction
; wind direction
; Alaska
; China
; Loess Plateau
; United States
英文摘要: A summary of approximately three decades and greater than thirty loess magnetic fabric studies is presented here. The revised studies cover various loess regions from the Chinese Loess Plateau across the European Loess Belt to Alaska. Although there is still an ongoing argument about the feasibility of the magnetic fabric of loess in paleowind reconstructions, the determination of prevailing wind direction during various periods of the Pleistocene is the main goal of magnetic anisotropy analysis of the revised loess successions. The magnetic fabric analysis of loess from Chinese Loess Plateau provided significant information about the characteristics of paleomonsoon in East Asia, and the results from other loess regions, such as Alaska, the European Loess Belt, and Siberia, are also promising. As it is shown in this review, the synthesis of the paleowind direction results from the studied profiles may already provide a significant foundation for future climate models by the reconstruction of key climate centres and main continental level wind tracks. Besides the reconstruction of prevailing paleowind directions, there are numerous loess magnetic fabric studies using magnetic anisotropy parameters in the reconstruction of the characteristics of long-term climate trends, climate transitions and glacial- interglacial cycles. There are some lesser known aspects contributing to magnetic fabric of loess, such as the influence of various types of magnetic contributors on the overall fabric (i.e. the study of sub-fabrics) and their role in environment reconstruction. Besides the identification of aeolian magnetic fabric, not so many studies focus on the magnetic anisotropy characteristics of materials, possibly developed by water-lain sedimentation, pedogenesis, mass movements and permafrost activity. Novel results from Hungarian loess, especially from Paks, connected to some of the latter topics are also presented. Such topics includes the analysis of the nanofabric in paleosols, developed by pedogenesis, the comparison of magnetic fabric, formed during high energy transportation by aeolian or aquatic agents, and the periodicity analysis of magnetic parameters during the early Middle Pleistocene. New research lines, introduced in this review, may inspire new researches, and provide new perspectives for the next generation of magnetic anisotropy studies of loess successions. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166014
Appears in Collections: 气候变化与战略
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作者单位: Dept. of Physics, Univ. of Burgos, Av. Cantabria, s/n, Burgos, 09006, Spain; Dept. of Planetology, Kobe Univ., Nada, Kobe, 657-8501, Japan; AGICO, Inc., Jecna 29a, Brno, CZ62100, Czech Republic; Institute of Geology of the Czech Academy of Sciences, Prague, Czech Republic; Dept. of Physical and Applied Geology, ELTE Eötvös Loránd Univ., 1/C, Pázmány P. st, Budapest, H-1117, Hungary; Szent István Univ., 1 Práter Károly st., Gödöllő, H-2100, Hungary; Dept. of Lithospheric Research, Univ. of Vienna, 14 Althanstrasse, Vienna, A-1090, Austria; Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences of the HAS, 45 Budaörsi st., Budapest, H-1112, Hungary; Research Center for Inland Seas, Kobe Univ., Nada, Kobe, 657-8501, Japan
Recommended Citation:
Bradák B.,Seto Y.,Chadima M.,et al. Magnetic fabric of loess and its significance in Pleistocene environment reconstructions[J]. Earth Science Reviews,2020-01-01,210