气候变化领域集成服务门户(CCPortal): Applying Brantingham's neutral model of stone raw material procurement to the Pinnacle Point Middle Stone Age record; Western Cape; South Africa

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DOI	10.1016/j.quascirev.2019.105901
	Applying Brantingham's neutral model of stone raw material procurement to the Pinnacle Point Middle Stone Age record; Western Cape; South Africa
	Oestmo S.; Janssen M.A.; Cawthra H.C.
发表日期	2020
ISSN	0277-3791
卷号	235
英文摘要	The Palaeo-Agulhas Plain (PAP), when exposed, presented Middle Stone Age (MSA) foragers at Pinnacle Point (PP) on the South Coast of South Africa with new sources of raw materials to make stone tools. Sea-level fluctuations and the changing size of the Paleo-Agulhas Plain throughout the Pleistocene PP record ∼165 ka to 50 ka would have altered the availability of different resources, thus potentially forcing new raw material procurement strategies. The relative frequencies of raw material throughout the PP sequence shows that frequencies of raw material types did change, especially after 90 ka. What caused these changing frequencies is debated and centers on whether targeted procurement of specific raw materials was the cause, or if simple raw material availability and abundance due to the changing environmental context in conjunction with opportunistic procurement drove such shifts. The application of a neutral model of stone raw material procurement presented here evaluates whether random walk in the region surrounding the PP site during different coastline configurations (Marine Isotope Stage 6, 5, and 4) explains the observed shifts in raw material usage. Put differently, did opportunistic acquisition of raw materials during random walk in these different environments cause the observed raw material pattern? Model simulations and a sensitivity analysis provide no convincing evidence that observed raw material frequencies at PP resulted from opportunistic acquisition during random walk. © 2019 Elsevier Ltd
英文关键词	Agent-based modeling; Data analysis; Data treatment; Hunter-gatherer mobility; Lithic technology; Pleistocene
语种	英语
scopus关键词	Autonomous agents; Computational methods; Data reduction; Random processes; Sea level; Agent-based model; Data treatment; Environmental contexts; Marine isotope stages; Material availability; Pleistocene; Sea-level fluctuations; Western Cape , South Africa; Sensitivity analysis; coastal zone; data assimilation; environmental factor; Mesolithic; sea level change; sensitivity analysis; tool use; Agulhas Plain; Pinnacle Point; South Africa; Western Cape
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151514
作者单位	African Centre for Coastal Palaeoscience, Nelson Mandela University, Port Elizabeth, Eastern Cape, South Africa; School of Sustainability, Arizona State University, Tempe, AZ, United States; Center for Behavior, Institutions and the Environment, Global Biosocial Complexity Initiative, Arizona State University, Tempe, AZ, United States; Geophysics and Remote Sensing Unit, Council for Geoscience Western Cape Office, PO Box 572, Bellville, 7535, South Africa
推荐引用方式 GB/T 7714	Oestmo S.,Janssen M.A.,Cawthra H.C.. Applying Brantingham's neutral model of stone raw material procurement to the Pinnacle Point Middle Stone Age record; Western Cape; South Africa[J],2020,235.
APA	Oestmo S.,Janssen M.A.,&Cawthra H.C..(2020).Applying Brantingham's neutral model of stone raw material procurement to the Pinnacle Point Middle Stone Age record; Western Cape; South Africa.Quaternary Science Reviews,235.
MLA	Oestmo S.,et al."Applying Brantingham's neutral model of stone raw material procurement to the Pinnacle Point Middle Stone Age record; Western Cape; South Africa".Quaternary Science Reviews 235(2020).