兰州大学机构库 >地质科学与矿产资源学院
Paleosols in Devonian red-beds from northwest China and their paleoclimatic characteristics
Guo, XL(郭雪莲)1; Retallack, Gregory J.2; Lu, Bin3; He, Lusheng1; Wang, RH(王荣华)1; Song, Hong1
2019-01
Source PublicationSEDIMENTARY GEOLOGY
ISSN0037-0738
Volume379Pages:16-24
AbstractPaleosols have been discovered in the late Devonian (Famennian) Shaliushui Formation near Pingchuan City, Gansu province, China, and are recognized by evidence of root traces, soil horizons and soil structures. Root traces are remnants of substantial woody plants, reaching deeply within profiles as clayey infills and as drab-haloed root traces. Soil horizons include thick layers of large calcareous nodules (Bk horizon), and subsurface accumulations of clay (Bt horizon), and slickensided claystone (vertic Bw horizon). Soil structures include blocky peds and calcareous nodules. The nodules and drab-haloed root traces formed syndepostionally during the late Devonian, because they were also observed in clasts of paleosol and nodules in fluvial conglomerates interbedded with the paleosols. Analyses for Rb/Sr and Ba/Sr ratios and magnetic susceptibility measurements confirm that the more strongly developed paleosols with larger calcareous nodules and higher clay content are also more chemically differentiated and have higher magnetic susceptibility under semi-arid climates. This suite of paleosols is evidence of semi-arid to sub-humid, highly seasonal climate under dry woodlands and shrublands. Paleosols of the Shaliushui Formation are a potentially valuable archive of late Devonian palaeoclimates of northwest China. (C) 2018 Elsevier B.V. All rights reserved.
KeywordFamennian Aridisol Geochemistry Magnetic susceptibility Paleoclimate
DOI10.1016/j.sedgeo.2018.11.001
Indexed BySCIE
Language英语
Funding ProjectNational Natural Science Foundation of China[41772168] ; National Natural Science Foundation of China[41877435]
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000457812200002
PublisherELSEVIER SCIENCE BV
Original Document TypeArticle
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/298800
Collection地质科学与矿产资源学院
Corresponding AuthorGuo, Xuelian; Retallack, Gregory J.
Affiliation1.Lanzhou Univ, Sch Earth Sci, Key Lab Western Chinas Mineral Resources Gansu Pr, Lanzhou 730000, Gansu, Peoples R China
2.Univ Oregon, Dept Earth Sci, Eugene, OR 97403 USA
3.Fujian Normal Univ, Sch Geog Sci, Res Ctr Global Change, Fuzhou 350007, Fujian, Peoples R China
First Author AffilicationSchool of Earth Sciences
Corresponding Author AffilicationSchool of Earth Sciences
Recommended Citation
GB/T 7714
Guo, Xuelian,Retallack, Gregory J.,Lu, Bin,et al. Paleosols in Devonian red-beds from northwest China and their paleoclimatic characteristics[J]. SEDIMENTARY GEOLOGY,2019,379:16-24.
APA Guo, Xuelian,Retallack, Gregory J.,Lu, Bin,He, Lusheng,Wang, Ronghua,&Song, Hong.(2019).Paleosols in Devonian red-beds from northwest China and their paleoclimatic characteristics.SEDIMENTARY GEOLOGY,379,16-24.
MLA Guo, Xuelian,et al."Paleosols in Devonian red-beds from northwest China and their paleoclimatic characteristics".SEDIMENTARY GEOLOGY 379(2019):16-24.
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