气候变化领域集成服务门户(CCPortal): Securing timelines in the ancient mediterranean using multiproxy annual tree-ring data

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DOI	10.1073/pnas.1917445117
	Securing timelines in the ancient mediterranean using multiproxy annual tree-ring data
	Pearson C.; Salzer M.; Wacker L.; Brewer P.; Sookdeo A.; Kuniholm P.
发表日期	2020
ISSN	0027-8424
起始页码	8410
结束页码	8415
卷号	117 期号:15
英文摘要	Calendar-dated tree-ring sequences offer an unparalleled resource for high-resolution paleoenvironmental reconstruction. Where such records exist for a few limited geographic regions over the last 8,000 to 12,000 years, they have proved invaluable for creating precise and accurate timelines for past human and environmental interactions. To expand such records across new geographic territory or extend data for certain regions further backward in time, new applications must be developed to secure “floating” (not yet absolutely dated) tree-ring sequences, which cannot be assigned single-calendar year dates by standard dendrochronological techniques. This study develops two approaches to this problem for a critical floating tree-ring chronology from the East Mediterranean Bronze-Iron Age. The chronology is more closely fixed in time using annually resolved patterns of 14C, modulated by cosmic radiation, between 1700 and 1480 BC. This placement is then tested using an anticorrelation between calendar-dated tree-ring growth responses to climatically effective volcanism in North American bristlecone pine and the Mediterranean trees. Examination of the newly dated Mediterranean tree-ring sequence between 1630 and 1500 BC using X-ray fluorescence revealed an unusual calcium anomaly around 1560 BC. While requiring further replication and analysis, this anomaly merits exploration as a potential marker for the eruption of Thera. © This open access article is distributed under Creative Commons Attribution-NonCommercialNoDerivatives License 4.0 (CC BY-NC-ND).
英文关键词	Annual 14C; Mediterranean Bronze Age; Thera eruption; Tree rings
语种	英语
scopus关键词	calcium; carbon 14; Article; Bronze Age; calendar dated tree ring; chemical analysis; cosmic radiation; environmental parameters; Iron Age; paleoenvironment; priority journal; tree growth; X ray fluorescence
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160993
作者单位	Pearson, C., Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States, Geosciences, University of Arizona, Tucson, AZ 85721, United States, School of Anthropology, University of Arizona, Tucson, AZ 85721, United States; Salzer, M., Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States; Wacker, L., Ion Beam Physics, Eidgenössische Technische Hochschule Zurich, Zurich, 8093, Switzerland; Brewer, P., Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States; Sookdeo, A., Ion Beam Physics, Eidgenössische Technische Hochschule Zurich, Zurich, 8093, Switzerland, Chronos 14Carbon-Cycle Facility, University of New South Wales, Sydney, NSW 2052, Australia; Kuniholm, P., Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States, School of Anthropology, University of Arizona, Tucson, AZ 85721, United States
推荐引用方式 GB/T 7714	Pearson C.,Salzer M.,Wacker L.,et al. Securing timelines in the ancient mediterranean using multiproxy annual tree-ring data[J],2020,117(15).
APA	Pearson C.,Salzer M.,Wacker L.,Brewer P.,Sookdeo A.,&Kuniholm P..(2020).Securing timelines in the ancient mediterranean using multiproxy annual tree-ring data.Proceedings of the National Academy of Sciences of the United States of America,117(15).
MLA	Pearson C.,et al."Securing timelines in the ancient mediterranean using multiproxy annual tree-ring data".Proceedings of the National Academy of Sciences of the United States of America 117.15(2020).