Academic Journal
Fluids as primary carriers of sulphur and copper in magmatic assimilation.
| العنوان: | Fluids as primary carriers of sulphur and copper in magmatic assimilation. |
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| المؤلفون: | Virtanen, Ville J, Heinonen, Jussi S, Molnár, Ferenc, Schmidt, Max W, Marxer, Felix, Skyttä, Pietari, Kueter, Nico, Moslova, Karina |
| سنة النشر: | 2021 |
| المجموعة: | Eötvös Loránd University: ELTE Digital Institutional Repository (EDIT) / Eötvös Loránd Tudományegyetem |
| الوصف: | Magmas readily react with their wall-rocks forming metamorphic contact aureoles. Sulphur and possibly metal mobilization within these contact aureoles is essential in the formation of economic magmatic sulphide deposits. We performed heating and partial melting experiments on a black shale sample from the Paleoproterozoic Virginia Formation, which is the main source of sulphur for the world-class Cu-Ni sulphide deposits of the 1.1 Ga Duluth Complex, Minnesota. These experiments show that an autochthonous devolatilization fluid effectively mobilizes carbon, sulphur, and copper in the black shale within subsolidus conditions (≤ 700 °C). Further mobilization occurs when the black shale melts and droplets of Cu-rich sulphide melt and pyrrhotite form at ∼1000 °C. The sulphide droplets attach to bubbles of devolatilization fluid, which promotes buoyancy-driven transportation in silicate melt. Our study shows that devolatilization fluids can supply large proportions of sulphur and copper in mafic-ultramafic layered intrusion-hosted Cu-Ni sulphide deposits. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| Relation: | http://hdl.handle.net/10831/110849; elte:000719546000020; elte:32499316; elte:1; elte:NAT COMMUN; elte:NATURE COMMUNICATIONS; elte:12; elte:34785681; elte:10089076; LOMS: https://edit.elte.hu/xmlui/bitstream/10831/110849/1/32499316.pdf |
| DOI: | 10.1038/s41467-021-26969-3 |
| الاتاحة: | http://hdl.handle.net/10831/110849 https://doi.org/10.1038/s41467-021-26969-3 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.8F38A26C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41467-021-26969-3 |
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