Universität zu Köln

Taheri, Mehdi, Khormali, Farhad ORCID: 0000-0001-6805-7343, Wang, Xin, Amini, Arash, Wei, Haitao, Kehl, Martin ORCID: 0000-0003-4587-5858, Frechen, Manfred and Chen, Fahu ORCID: 0000-0002-8874-1035 (2017). Micromorphology of the lower Pleistocene loess in the Iranian Loess Plateau and its paleoclimatic implications. Quat. Int., 429. S. 31 - 41. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 1873-4553

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Abstract

The loess deposits in Iran are a valuable archive of regional paleoclimatic and paleoenvironmental information. Extensive sedimentological and chronological studies have been carried out on the middle to upper Pleistocene loess successions during the past decades, but there is an absence of comparable research in the older loess deposits. Recently, a 19-m-thick loess-paleosol sequence was discovered in the central Iranian Loess Plateau (ILP), which was paleomagnetically-dated to similar to 2.4-1.8 Ma and thus represents by far the oldest loess known in northern Iran. Here, we present the results of a detailed micromorphological investigation of these lower Pleistocene loess-paleosol sequences (red sequence) from the ILP. Our main findings are as follows: 1) The Agh Band red sequence deposits are an extremely thick soil complex comprising paleosols in different stages of development; 2) the micromorphological index of soil development (MISECA) suggests that the moderately-and well-developed paleosols in the red sequence formed in an environment with mean annual precipitation ranging from around 450 to 650 mm, respectively; and 3) MISECA suggests that the red sequence formed under a semi-arid to sub-humid climate and thus under wetter and more favorable conditions than the overlying late Pleistocene loess and modern soils. (C) 2016 Elsevier Ltd and INQUA. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Taheri, Mehdi UNSPECIFIED UNSPECIFIED UNSPECIFIED Khormali, Farhad UNSPECIFIED orcid.org/0000-0001-6805-7343 UNSPECIFIED Wang, Xin UNSPECIFIED UNSPECIFIED UNSPECIFIED Amini, Arash UNSPECIFIED UNSPECIFIED UNSPECIFIED Wei, Haitao UNSPECIFIED UNSPECIFIED UNSPECIFIED Kehl, Martin UNSPECIFIED orcid.org/0000-0003-4587-5858 UNSPECIFIED Frechen, Manfred UNSPECIFIED UNSPECIFIED UNSPECIFIED Chen, Fahu UNSPECIFIED orcid.org/0000-0002-8874-1035 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-242119
DOI:	10.1016/j.quaint.2016.01.063
Journal or Publication Title:	Quat. Int.
Volume:	429
Page Range:	S. 31 - 41
Date:	2017
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	1873-4553
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PALEOENVIRONMENTAL SIGNIFICANCE; CARBONATE ACCUMULATION; PALEOSOL SEQUENCES; CALCAREOUS SOILS; CLAY ILLUVIATION; SOUTHERN PAMPAS; KASHMIR VALLEY; NORTHERN IRAN; PEDOSEDIMENTARY; ARGENTINA Multiple languages Geography, Physical; Geosciences, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/24211