气候变化领域集成服务门户(CCPortal): Carbon; nitrogen; and oxygen isotopes of ostrich eggshells provide site-scale Pleistocene-Holocene paleoenvironmental records for eastern African archaeological sites

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DOI	10.1016/j.quascirev.2019.106142
	Carbon; nitrogen; and oxygen isotopes of ostrich eggshells provide site-scale Pleistocene-Holocene paleoenvironmental records for eastern African archaeological sites
	Niespolo E.M.; Sharp W.D.; Tryon C.A.; Faith J.T.; Lewis J.; Ranhorn K.; Mambelli S.; Miller M.J.; Dawson T.E.
发表日期	2020
ISSN	0277-3791
卷号	230
英文摘要	Quantitative, well-dated, local paleoenvironmental records are necessary to 1) evaluate responses to regional to global-scale climate change at the scale of human habitats, and 2) test hypotheses regarding the effects of environmental change and human biological and cultural evolution. Ostrich eggshell (OES) fragments are common in African archaeological sequences, are amenable to 14C and 230Th/U dating, and their stable carbon (δ13C values) and nitrogen (δ15N values) isotopic compositions track local vegetation and mean annual precipitation (MAP), respectively. We review previous interpretations of the stable isotopic composition of OES, apply a novel calibration to estimate paleo-MAP (PMAP) from δ15N values, and show that oxygen isotopes (δ18O values) record evapotranspiration, which is controlled by temperature, relative humidity, and/or photosynthetic performance, if other components of the water cycle are constrained. The stable isotopic compositions of the organic fraction of OES remain unaltered to at least ∼50 ka, indicating potential to examine even older OES. We present a ∼50–4 ka record of OES δ13C, δ15N, and δ18O values from archaeological sites recording the Middle to Later Stone Age (MSA/LSA) transition at Lukenya Hill (Kenya) and Kisese II (Tanzania). Stable isotope proxies indicate contrasting but subtle changes in local paleoenvironment throughout the records at both sites, likely explained by local ecological and climatological effects that are not resolved by regional-scale paleoclimate records. These records highlight the need for additional local studies to assess the covariance of paleoenvironments and material culture. Furthermore, they indicate that the MSA/LSA transition at the two sites did not result from paleoenvironmental change. © 2019 Elsevier Ltd
英文关键词	Africa; Later Stone Age; Middle Stone Age; Ostrich eggshell; Paleoclimatology; Quaternary paleoecology; Stable isotopes
语种	英语
scopus关键词	Architecture; Birds; Carbon; Climate change; Ecology; Humidity control; Nitrogen; Oxygen; Africa; Ostrich eggshell; Paleoclimatology; Paleoecology; Stable isotopes; Stone age; Isotopes; archaeology; carbon isotope; environmental change; Holocene; isotopic composition; nitrogen isotope; oxygen isotope; paleoclimate; paleoecology; paleoenvironment; Pleistocene; precipitation (climatology); shell; stable isotope; Stone Age; Kenya; Tanzania; Struthioniformes
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/151598
作者单位	Department of Earth and Planetary Science, University of California, Berkeley, CA, United States; Berkeley Geochronology Center, Berkeley, CA, United States; Department of Anthropology, University of Connecticut, Storrs, CT, United States; Natural History Museum of Utah, University of Utah, Salt Lake City, UT, United States; Department of Anthropology, University of Utah, Salt Lake City, UT, United States; Turkana Basin Institute, Stony Brook University, Stony Brook, NY, United States; Department of Anthropology, Stony Brook University, Stony Brook, NY, United States; Department of Integrative Biology, University of California, Berkeley, CA, United States; Archaeological Research Facility, University of California, Berkeley, CA, United States; School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, United States
推荐引用方式 GB/T 7714	Niespolo E.M.,Sharp W.D.,Tryon C.A.,et al. Carbon; nitrogen; and oxygen isotopes of ostrich eggshells provide site-scale Pleistocene-Holocene paleoenvironmental records for eastern African archaeological sites[J],2020,230.
APA	Niespolo E.M..,Sharp W.D..,Tryon C.A..,Faith J.T..,Lewis J..,...&Dawson T.E..(2020).Carbon; nitrogen; and oxygen isotopes of ostrich eggshells provide site-scale Pleistocene-Holocene paleoenvironmental records for eastern African archaeological sites.Quaternary Science Reviews,230.
MLA	Niespolo E.M.,et al."Carbon; nitrogen; and oxygen isotopes of ostrich eggshells provide site-scale Pleistocene-Holocene paleoenvironmental records for eastern African archaeological sites".Quaternary Science Reviews 230(2020).