Identification of mantle peridotite as a possible Iapetan ophiolite sliver in south Shetland, Scottish Caledonides
Identification of mantle peridotite as a possible Iapetan ophiolite sliver in south Shetland, Scottish Caledonides
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苏格兰喀里多尼德群岛南设得兰群岛将地幔橄榄岩鉴定为可能的 Iapetan 蛇绿岩条
DOI:
10.1144/jgs2016-074
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发表时间:
2016
影响因子:
2.7
通讯作者:
Day J
中科院分区:
文献类型:
--
作者:
Day J
The Neoproterozoic Dunrossness Spilite Subgroup of south Shetland, Scotland, has been interpreted as a series of komatiitic and mafic lava flows formed in a marginal basin in response to Laurentian continental margin rifting. We show that ultramafic rocks previously identified as komatiites are depleted mantle peridotites that experienced seafloor hydrothermal alteration. The presence of positive Bouguer gravity and aeromagnetic anomalies extending from the Dunrossness Spilite Subgroup northward to the Shetland Ophiolite Complex suggests instead that these rocks may form part of an extensive ophiolite sliver, obducted during Iapetus Ocean closure in a forearc setting.Supplementary material: Supplementary information, including methods, supplementary figures and tabulated data, is available at https://doi.org/10.6084/m9.figshare.c.3469161.
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DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
N. Trewin
通讯作者:
N. Trewin
影响因子:
2.7
作者:
Q. Crowley;R. Strachan
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R. Strachan
影响因子:
5.3
作者:
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通讯作者:
R. Walker;A. Brandon;J. Bird;P. Piccoli;W. McDonough;R. Ash
影响因子:
2.3
作者:
J. Spray;Gregory R. DUNNINGf
通讯作者:
Gregory R. DUNNINGf
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
D. Flinn;D. Moffat
通讯作者:
D. Moffat