| 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 Publication | SEDIMENTARY GEOLOGY
 |
| ISSN | 0037-0738 |
| Volume | 379Pages:16-24 |
| Abstract | Paleosols 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. |
| Keyword | Famennian Aridisol Geochemistry Magnetic susceptibility Paleoclimate |
| DOI | 10.1016/j.sedgeo.2018.11.001 |
| Indexed By | SCIE |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41772168] ; National Natural Science Foundation of China[41877435] |
| WOS Research Area | Geology |
| WOS Subject | Geology |
| WOS ID | WOS:000457812200002 |
| Publisher | ELSEVIER SCIENCE BV |
| Original Document Type | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.lzu.edu.cn/handle/262010/298800 |
| Collection | 地质科学与矿产资源学院 |
| Corresponding Author | Guo, Xuelian; Retallack, Gregory J. |
| Affiliation | 1.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 Affilication | School of Earth Sciences |
| Corresponding Author Affilication | School 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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