Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.quaint.2015.11.122 |
Granulometrical, mineralogical and geochemical characterization of loess deposits in the Tajo Basin | |
Calvo, F. R.1; Sanchez, J.1; Acosta, A.2; Wolf, D.3; Faust, D.3 | |
通讯作者 | Calvo, F. R. |
来源期刊 | QUATERNARY INTERNATIONAL
![]() |
ISSN | 1040-6182 |
EISSN | 1873-4553 |
出版年 | 2016 |
卷号 | 407页码:14-28 |
英文摘要 | Loess research has the merit of enabling reconstructions of Pleistocene sedimentation dynamics in many parts of the world. However, there is still very few information regarding the occurrence of loess deposits in the Mediterranean area, even though such records may provide a unique opportunity to investigate landscape evolution for a period for which terrestrial archives are very rare in this region. This paper presents the first results of investigations on a loess sequence in the middle Tajo Valley in central Spain. Findings from detailed granulometrical, mineralogical, geochemical, and grain morphological analyses help to give a first overview on character and composition of these deposits. Very high levels of carbonates (similar to 60%), but also of gypsum, both to large extents of primary origin, indicate the incorporation of material derived from marls and limestone. Furthermore, we found evidence that allows deduction of possible loess proveniences more precisely. Dolomite contents of up to 20% indicate that the Iberian Range might have been an important source area of loess sediments. The fact that these uplands are located to the east seems to be opposed to the common assumption of prevailing west winds for glacial periods. The studied sequence (Paraiso profile) is one of seven sections that have been investigated as part of a programme to reconstruct Upper Pleistocene landscape dynamics in central Spain. In this context, the detailed characterisation of sediment properties is crucial for discussing loess proveniences and sedimentary environments. (C) 2015 Elsevier Ltd and INQUA. All rights reserved. |
英文关键词 | Grain-size analysis Mineralogy Geochemistry Carbonates Loess Spain |
类型 | Article |
语种 | 英语 |
国家 | Spain ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000376727500003 |
WOS关键词 | GLACIAL LOESS ; DESERT LOESS ; PALEOSOL SEQUENCE ; SIZE ANALYZER ; PEORIA LOESS ; ORIGIN ; DUST ; DIFFRACTION ; SEDIMENTS ; PROVENANCE |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195796 |
作者单位 | 1.Univ Castilla La Mancha, Dept Ingn Civil & Edificac, ETSI Caminos Canales & Puertos, Ciudad Real, Spain; 2.Univ Castilla La Mancha, Dept Quim Fis, Fac CC Quim, Ciudad Real, Spain; 3.Inst Geog, Lehrstuhl Phys Geog, Dresden, Germany |
推荐引用方式 GB/T 7714 | Calvo, F. R.,Sanchez, J.,Acosta, A.,et al. Granulometrical, mineralogical and geochemical characterization of loess deposits in the Tajo Basin[J],2016,407:14-28. |
APA | Calvo, F. R.,Sanchez, J.,Acosta, A.,Wolf, D.,&Faust, D..(2016).Granulometrical, mineralogical and geochemical characterization of loess deposits in the Tajo Basin.QUATERNARY INTERNATIONAL,407,14-28. |
MLA | Calvo, F. R.,et al."Granulometrical, mineralogical and geochemical characterization of loess deposits in the Tajo Basin".QUATERNARY INTERNATIONAL 407(2016):14-28. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。