Rhenium-osmium geochronology of gersdorffite and skutterudite-pararammelsbergite links nickel–cobalt mineralization to the opening of the incipient Meliata Ocean (Western Carpathians, Slovakia)
Rhenium-osmium geochronology of gersdorffite and skutterudite-pararammelsbergite links nickel–cobalt mineralization to the opening of the incipient Meliata Ocean (Western Carpathians, Slovakia)
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铼辉石和方钴矿-副菱镁矿的铼-锇地质年代学将镍钴矿化与早期梅利亚塔洋(斯洛伐克西喀尔巴阡山脉)的开放联系起来
DOI:
10.1007/s00126-022-01101-7
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发表时间:
2022
影响因子:
4.8
通讯作者:
Creaser
中科院分区:
文献类型:
--
作者:
Majzlan;Mikuš;Kiefer;Creaser
The multi-orogenic crustal segment of the Central Western Carpathians comprises a Variscan basement that is host to small nickel–cobalt (Ni–Co) arsenide and sulfarsenide mineralizations at Ľubietová-Kolba and Čierna Lehota (Slovakia). Here, we constrain the timing of Ni–Co mineralization by using rhenium-osmium (Re–Os) isotope geochemistry of (1) gersdorffite (NiAsS) after krutovite (NiAs2) at Ľubietová-Kolba, and (2) a mixture of skutterudite-pararammelsbergite (CoAs3–NiAs2) from the Čierna Lehota deposit, hosted by metamorphosed carbonaceous rocks. Gersdorffite, which is bereft of common Os, returns a Re–Os model age of 238.2 ± 1.0 (2σ) million years (Ma). Four aliquots of the skutterudite-pararammelsbergite mixture define a robust model 1 isochron at 238.2 ± 12.7 (2σ) Ma (mean square weighted deviates – MSDW = 0.95). A crustal source of Os, and by inference other metals, is inferred from the initial187Os/188Os ratio of 0.90 ± 0.01 of this isochron. We conclude that studied Ni–Co mineralizations are related to an extensional tectonic regime and hydrothermal fluid flow in connection with the opening of the Meliata ocean in the Middle Triassic (Ladinian).
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影响因子:
3.3
作者:
M. Scharrer;S. Kreissl;G. Markl
通讯作者:
G. Markl
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
I. Petrik;M. Janák;T. Vaculovič;P. Konečný;Š. Méres
通讯作者:
Š. Méres
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Milan Kohút;H. Stein;P. Uher;Aaron Aimmerman;L. Hraško
通讯作者:
L. Hraško
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
J. Pršek;T. Mikuš;E. Makovicky;M. Chovan
通讯作者:
M. Chovan
影响因子:
1.3
作者:
Majzlan;Chovan;Luptáková
通讯作者:
Luptáková