Arid
DOI10.1016/j.quaint.2014.06.005
Chronological and geoarchaeological investigations on an anthropogenic shell accumulation layer in the Longotoma dune field (Central Chile)
May, S. M.1; Zander, A.1; Francois, J. P.2; Kelletat, D.1; Poetsch, S.3; Rixhon, G.1; Brueckner, H.1
通讯作者May, S. M.
来源期刊QUATERNARY INTERNATIONAL
ISSN1040-6182
EISSN1873-4553
出版年2015
卷号367页码:32-41
英文摘要

Along the Chileane-Peruvian coast, numerous archaeological sites associated with shell accumulations provide evidence for the role of coastal environments as a natural corridor for the human occupation of South America. In particular, the semi-arid coastline of northern Central Chile (similar to 33-27 degrees S) is a key area for investigating the relationship between human occupation history and past climate changes, as palaeoenvironmental studies record important climatic fluctuations in the area throughout the Holocene. In this study, we present a consistent chronology of an anthropogenic shell accumulation layer and an associated palaeosol, found in the stratigraphy of palaeodunes in the Longotoma dune system, northern Central Chile (32 degrees 24 ’ S, 71 degrees 23 ’ W). Infrared Stimulated Luminescence (IRSL) dating of feldspars is used, for the first time in this context, to establish the chronological framework together with radiocarbon dating. The consistency between IRSL- and radiocarbon ages demonstrates the potential of IRSL techniques for studies in comparable settings and at similar time scales, where Optically Stimulated Luminescence (OSL) dating of quartz is problematic. The chronostratigraphical results (i) allow to infer different phases of dune activity as well as an intermittent period of interdunal soil formation at the end of the 6th millennium BP, when the cultural layer and the palaeosol formed; (ii) allocate an age range of similar to 4500-3500 a to alluvial deposits below the modern dune corridor; and thereby (iii) give further evidence for the presence of Archaic coastal hunter-gatherer populations in the La Ligua Bay and in northern Central Chile. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.


英文关键词Central Chile IRSL dating Radiocarbon dating Anthropogenic shell layer Palaeoenvironment
类型Article
语种英语
国家Germany
收录类别SCI-E
WOS记录号WOS:000353812100003
WOS关键词SEMIARID COAST ; SOUTHERN WESTERLIES ; CLIMATE-CHANGE ; QUARTZ ; CALIBRATION ; OCCUPATION ; EVOLUTION ; DEPOSITS ; AMERICA ; ARIDITY
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/2XILL650/189999
作者单位1.Univ Cologne, Inst Geog, D-50923 Cologne, Germany;
2.Univ Cologne, Seminar Geog & Its Didact, D-50923 Cologne, Germany;
3.Ernst Moritz Arndt Univ Greifswald, Inst Geog & Geol, D-17487 Greifswald, Germany
推荐引用方式
GB/T 7714
May, S. M.,Zander, A.,Francois, J. P.,et al. Chronological and geoarchaeological investigations on an anthropogenic shell accumulation layer in the Longotoma dune field (Central Chile)[J],2015,367:32-41.
APA May, S. M..,Zander, A..,Francois, J. P..,Kelletat, D..,Poetsch, S..,...&Brueckner, H..(2015).Chronological and geoarchaeological investigations on an anthropogenic shell accumulation layer in the Longotoma dune field (Central Chile).QUATERNARY INTERNATIONAL,367,32-41.
MLA May, S. M.,et al."Chronological and geoarchaeological investigations on an anthropogenic shell accumulation layer in the Longotoma dune field (Central Chile)".QUATERNARY INTERNATIONAL 367(2015):32-41.
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