DC pole | Wartość | Język |
dc.contributor.author | Premovic, P. | - |
dc.contributor.author | Ciesielczuk, Justyna | - |
dc.contributor.author | Bzowska, Grażyna | - |
dc.contributor.author | Dordevic, M. | - |
dc.date.accessioned | 2019-08-23T09:59:35Z | - |
dc.date.available | 2019-08-23T09:59:35Z | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | "Geologica Carpathica" Vol. 63 (3) (2012), s. 241-252 | pl_PL |
dc.identifier.issn | 1336-8052 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/10590 | - |
dc.description.abstract | Geochemical analyses for trace V and Cr have been done on a representative sample of a typical hydrothermal
dickite/kaolinite filling vein at Nowa Ruda. The mineralogy of the sample is comparatively simple, dickite being the
principal component (ca. 91 % of the total sample). Geochemical fractionation and inductively coupled plasma-optical
emission spectrometry (ICP-OES) indicate that most ( > 90 % of total metal) of the V and Cr reside in the dickite. Electron
Spin Resonance (ESR) shows that most ( > 70 %) of the V in the dickite structure is in the form of vanadyl (VO2+) ions. A
high concentration of Cr3+ is also detected in this structure by ESR. The combination of geochemical and spectroscopic
tools applied to VO2+ and Cr3+ allow one to specify the Eh ( > 0.4 V, highly oxidizing) and pH ( 4.0, highly acidic) of the
solution during the formation of dickite from the Nowa Ruda Basin. Substantial proportions of the V and Cr (as well as
VO2+ and Cr3+) in the dickite structure were probably contained in an original hydrothermal acid water. We suggest that
hot hydrothermal waters leached the surrounding varieties of gabbroids enriched in V and Cr for the dickite-forming
solution. The results of this work have shown V and Cr are potentially reliable indicators for geochemical characterization
of the physicochemical conditions of their formation. The bulk-rock V/Cr ratio in hydrothermal dickites and kaolinites
from Nowa Ruda, Sonoma (California, USA), Cigar Lake (Saskatchewan, Canada) and Teslić (Bosnia and Hercegovina)
is also briefly explored here as a potential tracer of redox state during their formation. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ | * |
dc.subject | electron spin resonance | pl_PL |
dc.subject | kaolinite | pl_PL |
dc.subject | dickite | pl_PL |
dc.subject | chromium | pl_PL |
dc.subject | vanadium | pl_PL |
dc.title | Geochemistry and electron spin resonance of hydrothermal dickite (Nowa Ruda, Lower Silesia, Poland) : Vanadium and chromium | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.relation.journal | Geologica Carpathica | pl_PL |
dc.identifier.doi | 10.2478/v10096-012-0020-8 | - |
Pojawia się w kolekcji: | Artykuły (WNP)
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