globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2019.115979
论文题名:
Extreme geomagnetic field variability indicated by Eastern Mediterranean full-vector archaeomagnetic records
作者: Ertepinar P.; Hammond M.L.; Hill M.J.; Biggin A.J.; Langereis C.G.; Herries A.I.R.; Yener K.A.; Akar M.; Gates M.-H.; Harrison T.; Greaves A.M.; Frankel D.; Webb J.M.; Özgen İ.; Yazicioglu G.B.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 531
语种: 英语
中文关键词: archaeointensity ; archaeomagnetism ; Cyprus ; geomagnetic spike ; Levantine Iron Age anomaly ; Turkey
英文关键词: Brick ; History ; Archaeointensity ; archaeomagnetism ; Cyprus ; geomagnetic spike ; Iron age ; Turkey ; Geomagnetism
英文摘要: The magnetic field of the Earth can exhibit considerable variations at short time scales, even as short as decades. The archaeomagnetic studies of Middle Eastern artefacts (mainly from Israel and Jordan) show evidence for an exceptionally high intensity period from 1050-700 BC which displays two distinct spikes over the Levant, the Levantine Iron Age Anomaly (LIAA). Its exact duration and geographical extent are still poorly known. Despite the wealth of ancient settlements, the extensive cultural heritage and a long history of trade and immigration, the archaeomagnetism of Turkey and Cyprus remains largely unexplored. This study presents a large data set of ancient directions and intensities from seven archaeological sites in the Eastern Mediterranean covering a time span of ∼2000 yrs. The recorded directions from thirteen sets of samples are coherent with our earlier findings, yet show significantly larger swings than existing field models. In particular, we confirm the very large swing in inclination we found earlier, from 1910-1850 BC, that is also captured by the Greek PSV curve, and shallower by more than 10° than predicted by existing field models. Consequently, these models require substantial revision in this region. We were able to determine the archaeointensity from five sets of mud-bricks, from the thirteen attempted, allowing us to provide the full field vector. Furthermore, we present thirty-one new archaeointensity results from potsherds and mud-bricks that considerably enhance existing data, especially when a set of strict selection criteria is applied. Fourteen sets of potsherds from a single site (Tell Atchana) provide the longest sequence recorded so far in Turkey, from 2100 to 1350 BC. We find exceptionally high intensities of 145 and 175 ZAm2 around 700 BC, in well-dated mud-bricks and potsherds from two different locations (Tell Tayinat and Kilise Tepe), supporting extreme geomagnetic field variability in the region. Moreover, these two high intensities confirm the younger spike of the LIAA in Turkey. © 2019 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164954
Appears in Collections:气候变化与战略

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作者单位: Paleomagnetic Laboratory Fort Hoofddijk, Department of Earth Sciences, University of Utrecht, Budapestlaan 17, Utrecht, 3584 CD, Netherlands; Sustrans Scotland, Rosebery House, 9 Haymarket Terrace, Edinburgh, EH12 5EZ, United Kingdom; Geomagnetism Laboratory, Department of Earth, Ocean and Ecological Sciences, University of Liverpool, Liverpool, L69 7ZE, United Kingdom; The Australian Archaeomagnetism Laboratory, Department of Archaeology and History, La Trobe University, Melbourne Campus, BundooraVIC 3086, Australia; Institute for the Study of the Ancient World, New York University, 15 East 84th St., New York, NY 10028, United States; Department of Archaeology, Faculty of Arts and Sciences, Mustafa Kemal University, Antakya, Hatay 31060, Turkey; Department of Archaeology, Faculty of Humanities and Letters, Bilkent University, Bilkent, Ankara, 06800, Turkey; Department of Near and Middle Eastern Civilizations, University of Toronto, Toronto, Canada; Department of Archaeology, Classics and Egyptology, University of Liverpool, Liverpool, L69 7WZ, United Kingdom; Division of the Humanities, Near Eastern Languages and Civilizations, The University of Chicago, Chicago, IL 60637, United States

Recommended Citation:
Ertepinar P.,Hammond M.L.,Hill M.J.,et al. Extreme geomagnetic field variability indicated by Eastern Mediterranean full-vector archaeomagnetic records[J]. Earth and Planetary Science Letters,2020-01-01,531
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