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Siderophile metal fallout to Greenland from the 1991 winter eruption of Hekla (Iceland) and during the global atmospheric perturbation of Pinatubo

Abstract:

Ir and Pt are siderophile elements that are considered proxies of meteoric material of cosmic origin entrapped within polar ice layers. However, volcanic and anthropogenic fallouts have the potential to perturb their characteristic extraterrestrial signature even in remote polar areas. Here we show a record of Ir and Pt concentrations in snow samples collected from a 2.7 m pit, which was dug at Summit (Central Greenland), and covered five years from winter 1991 to summer 1995. A well-defined ...

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Publication status:
Published

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Journal:
CHEMICAL GEOLOGY
Volume:
255
Issue:
1-2
Pages:
78-86
Publication date:
2008-09-30
DOI:
ISSN:
0009-2541
URN:
uuid:ca9f83a3-c3d8-4028-bb13-6e6e4a243b3c
Source identifiers:
81977
Local pid:
pubs:81977

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