气候变化领域集成服务门户(CCPortal): Spatial variation in bioavailable strontium isotope ratios (87Sr/86Sr) in Kenya and northern Tanzania: Implications for ecology; paleoanthropology; and archaeology

CCPortal

DOI	10.1016/j.palaeo.2020.109957
	Spatial variation in bioavailable strontium isotope ratios (87Sr/86Sr) in Kenya and northern Tanzania: Implications for ecology; paleoanthropology; and archaeology
	Janzen A.; Bataille C.; Copeland S.R.; Quinn R.L.; Ambrose S.H.; Reed D.; Hamilton M.; Grimes V.; Richards M.P.; le Roux P.; Roberts P.
发表日期	2020
ISSN	0031-0182
卷号	560
英文摘要	Eastern Africa is a key region for studying archaeological, palaeontological, and ecological movements. This region hosts critical developments in hominin and human evolution, the dispersal of food-producing populations across the continent, and some of the largest known contemporary mammalian migrations on the planet. Strontium isotope analysis of biominerals such as tooth enamel, eggshell, and other tissues in modern animals have been used to reconstruct migration, residential mobility, and provenience. The diverse geologies of Kenya and Tanzania, ranging from the Archaean Basement System rocks of the Tanzania Craton to the recent volcanics of rift valleys, make it a highly promising area for mobility and provenience studies using strontium isotope ratios (87Sr/86Sr). Nevertheless, the application of strontium isotope analysis to reconstruct migration and individual mobility has been limited in the region due to the lack of a map predicting biologically available (bioavailable) 87Sr/86Sr. We present bioavailable 87Sr/86Sr data from a variety of modern and archaeological materials throughout Kenya and northern Tanzania. We show that 87Sr/86Sr of living organisms in the study area range from as low as 0.70439 for samples collected from Neogene volcanics to 0.72796 for samples collected from Precambrian Basement System rocks. We also present an 87Sr/86Sr map (isoscape) of Kenya and Tanzania developed using a machine-learning framework and a compilation of bioavailable 87Sr/86Sr data from Africa. This map provides the first predictions of bioavailable 87Sr/86Sr for East Africa, and represents a crucial resource for future work on ancient and modern animal and human mobility. © 2020
英文关键词	Africa; Geology; Isoscape; Machine learning; Mobility; Provenience
语种	英语
scopus关键词	anthropology; archaeology; Archean; dispersal; isotopic analysis; machine learning; mobility; Neogene; paleontology; Precambrian; spatial variation; strontium isotope; tooth; Kenya; Tanzania; Tanzania Craton; Animalia; Mammalia
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150272
作者单位	Department of Archaeology, Max Planck Institute for the Science of Human History, Kahlaische Strasse 10, Jena, D-07445, Germany; Department of Anthropology, University of Tennessee, Knoxville, TN 37996, United States; Department of Earth and Environmental Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada; Environmental Stewardship Group, Los Alamos National Laboratory, MS J978, Los Alamos, NM 87545, United States; Department of Sociology, Anthropology & Social Work, Seton Hall University, South Orange, NJ 07079, United States; Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ 08854, United States; Department of Anthropology, University of Illinois, 109 Davenport Hall, 607 South Mathews Avenue, Urbana, IL 61801, United States; Department of Anthropology, University of Texas at Austin, Austin, TX 77812, United States; Department of Anthropology, University of Northern Colorado, Greeley, CO 80634, United States; Department of Archaeology; Department of Earth Scie...
推荐引用方式 GB/T 7714	Janzen A.,Bataille C.,Copeland S.R.,et al. Spatial variation in bioavailable strontium isotope ratios (87Sr/86Sr) in Kenya and northern Tanzania: Implications for ecology; paleoanthropology; and archaeology[J],2020,560.
APA	Janzen A..,Bataille C..,Copeland S.R..,Quinn R.L..,Ambrose S.H..,...&Roberts P..(2020).Spatial variation in bioavailable strontium isotope ratios (87Sr/86Sr) in Kenya and northern Tanzania: Implications for ecology; paleoanthropology; and archaeology.Palaeogeography, Palaeoclimatology, Palaeoecology,560.
MLA	Janzen A.,et al."Spatial variation in bioavailable strontium isotope ratios (87Sr/86Sr) in Kenya and northern Tanzania: Implications for ecology; paleoanthropology; and archaeology".Palaeogeography, Palaeoclimatology, Palaeoecology 560(2020).