爱琴海一座~5 ka露天铜矿的宇宙射线暴露定年:模拟体积调制

IF 1.4 3区地球科学 Q3 GEOGRAPHY, PHYSICAL

Zeitschrift fur Geomorphologie Pub Date : 2017-03-28 DOI:10.1127/ZFG/2017/0427

C. Athanassas, R. Braucher, D. Bourlès, Anne-Elisabeth Lebatard

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引用次数: 0

摘要

在希腊爱琴海Kythnos岛上的一个史前露天(即空中暴露)铜矿中，测量了约5 ka的原位生产的10 - Be浓度，导致高估了宇宙射线暴露年龄。这有力地表明，史前采矿活动太浅，无法达到岩石中无核素的水平。考虑到该露天矿的独立估算年龄，进一步利用矿样岩面测得的10 Be浓度估算开挖厚度。所得结果指向的挖掘深度不超过几分米，与独立的考古证据一致。

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Cosmic-ray exposure dating of a ~5 ka open cast copper mine in the Aegean: modeling volume modulations

Measurement of in situ-produced 10 Be concentrations at a prehistoric open cast (i.e. aerially exposed) copper mine on Kythnos island, Aegean, Greece, dated to ~ 5 ka, led to overestimated cosmic ray exposure ages. This strongly suggests that the prehistoric mining activity was too shallow to reach nuclide-free levels in the rock. Considering the independently estimated age of the open cast mine, the 10 Be concentrations measured in the sampled rock surface of the mine are further exploited to estimate the thickness of the excavation. The results obtained point at excavation depths no more than a few decimeters, agreeing with independent archaeological evidence.

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来源期刊

Zeitschrift fur Geomorphologie 地学-地球科学综合

CiteScore

2.00

自引率

4.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Zeitschrift für Geomorphologie main volume is a peer-reviewed international journal presenting original contributions of high scientific standard from all fields of geomorphology, encompassing basic research and applied studies. Zeitschrift für Geomorphologie (ZfG) invites the submission of original papers from the entire field of geomorphological research, both applied and theoretical. Authors are encouraged to submit their papers to the editor-in-chief. Please peruse the instructions to authors (PDF) before submitting your paper.