globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1917445117
论文题名:
Securing timelines in the ancient mediterranean using multiproxy annual tree-ring data
作者: Pearson C.; Salzer M.; Wacker L.; Brewer P.; Sookdeo A.; Kuniholm P.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:15
起始页码: 8410
结束页码: 8415
语种: 英语
英文关键词: Annual 14C ; Mediterranean Bronze Age ; Thera eruption ; Tree rings
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
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).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164249
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Pearson C.,Salzer M.,Wacker L.,et al. Securing timelines in the ancient mediterranean using multiproxy annual tree-ring data[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(15)
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