干旱区生态环境知识资源中心(Arid): Landscape evolution and the environmental context of human occupation of the southern pampa del tamarugal, Atacama Desert, Chile

Arid

DOI	10.1016/j.quascirev.2020.106502
	Landscape evolution and the environmental context of human occupation of the southern pampa del tamarugal, Atacama Desert, Chile
	Workman, T. Race; Rech, Jason A.; Gayo, Eugenia M.; Santoro, Calogero M.; Ugalde, Paula C.; De Pol-Holz, Ricardo; Capriles, Jose M.; Latorre, Claudio
通讯作者	Workman, TR
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
出版年	2020
卷号	243
英文摘要	As with most living organisms, human populations respond to climatic, environmental, and population pressures by transforming their range and subsistence strategies over space and time. An understanding of human ecology can be gained when the archaeological record is placed within the context of dynamic landscape changes and alterations in natural resource availability. We reconstructed the landscape evolution of the Quebrada Mani fan complex, situated along the west-facing slope of the Central Andes in the hyperarid core of the Atacama Desert, an area that contains an archaeological record that spans almost 13,000 years. Surficial geologic mapping and dating of three 2-12 km(2) study sites, in conjunction with archaeological records and analysis of remotely sensed data for the similar to 400 km(2) fan complex, was conducted to reconstruct the landscape evolution and the way of life of Paleoindian (ca. 12.8-11.5 ka) and early/late Formative (ca 2.5 to 0.7 ka) social groups. Just prior to any known human occupation, a large pluvial event in the high Andes, regionally referred to as CAPE I, impacted the Quebrada Mani fan complex from ca.18-16.5 ka. During CAPE I, the Mani fan complex was dominated by perennial stream systems that deposited well-sorted conglomerates in the upper reaches of the fan (Unit T2) and perennial wetlands (Unit B1). This pluvial period was followed by the onset of an extreme drought sometime after 15 ka, but before 13 ka, when wetlands desiccated and the distal reaches of the fan deflated. Sand sheets and sand dunes were deposited across broad reaches of the landscape and Quebrada Mani incised 3-5 m into its floodplain. This drought had profound implications for the distribution of natural resources during the subsequent pluvial event (CAPE II) that ensued from ca. 12.5-9.5 ka. Incision along the upper reaches of the fan caused a more restricted floodplain and allowed the deposition of extensive wetlands along the more distal central reaches of the fan where groundwater emerged. Paleoindian residential open-air camps were placed in these areas. Wetlands were replaced by a tree-covered floodplain during the latter portion of this pluvial event (ca. 10.5-9 ka). We found no archaeological evidence for human occupations between similar to 8-2.5 ka, suggesting a lack of natural resources and/or very low hunter-gatherer population densities. During this time, Quebrada Mani incised up to 8 m into the floodplain. Mudflow deposition - typical of the present-day fan complex - initiated around 2.5 ka, likely responding to an increase in precipitation. This triggered a re-population of the fan surface by Formative agricultural groups that irrigated and extensively farmed these flood-plains. By the end of the Formative, these socio-cultural groups became increasingly vulnerable to climatic changes as cut-and-fill cycles in the drainage necessitated major infrastructure adjustments, until the technologies and social-cultural convention of the epoch could not cope with environmental change and investments were abandoned by similar to 0.8 ka. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Atacama Paleowetland Chile Climate change Archaeology CAPE Geomorphology Geoarchaeology Landscape evolution
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000564800900004
WOS关键词	NORTHERN CHILE ; CLIMATE-CHANGE ; PLEISTOCENE ; ANDES ; COLONIZATION ; STRATEGIES ; SETTLEMENT ; SEDIMENT ; HISTORY ; MARINE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325949
作者单位	[Workman, T. Race; Rech, Jason A.] Miami Univ, Dept Geol & Environm Earth Sci, Oxford, OH 45056 USA; [Gayo, Eugenia M.] Univ San Sebastian, Fac Med & Ciencia, Dept Ciencias Biol & Quim, Concepcion, Chile; [Gayo, Eugenia M.] Ctr Climate & Resilience Res CR2, Concepcion, Chile; [Santoro, Calogero M.] Univ Tarapaca, Inst Alta Invest, Antofagasta 1520, Arica 1001236, Chile; [Ugalde, Paula C.] Univ Arizona, Sch Anthropol, Tucson, AZ 85721 USA; [De Pol-Holz, Ricardo] Univ Magallanes, GAIA Antcirtica, Punta Arenas, Chile; [Capriles, Jose M.] Penn State Univ, Dept Anthropol, University Pk, PA 16802 USA; [Latorre, Claudio] Pontificia Univ Catolica Chile, Ctr UC Desierto Atacama, Santiago, Chile; [Latorre, Claudio] Pontificia Univ Catolica Chile, Dept Ecol, Santiago, Chile; [Latorre, Claudio] Inst Ecol & Biodivers IEB, Santiago, Chile
推荐引用方式 GB/T 7714	Workman, T. Race,Rech, Jason A.,Gayo, Eugenia M.,et al. Landscape evolution and the environmental context of human occupation of the southern pampa del tamarugal, Atacama Desert, Chile[J]. University of Arizona,2020,243.
APA	Workman, T. Race.,Rech, Jason A..,Gayo, Eugenia M..,Santoro, Calogero M..,Ugalde, Paula C..,...&Latorre, Claudio.(2020).Landscape evolution and the environmental context of human occupation of the southern pampa del tamarugal, Atacama Desert, Chile.QUATERNARY SCIENCE REVIEWS,243.
MLA	Workman, T. Race,et al."Landscape evolution and the environmental context of human occupation of the southern pampa del tamarugal, Atacama Desert, Chile".QUATERNARY SCIENCE REVIEWS 243(2020).