Experimental modeling of noble and chalcophile elements fractionation during solidification of cu-fe-ni-s melt

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Experimental modeling of noble and chalcophile elements fractionation during solidification of cu-fe-ni-s melt. / Sinyakova, Elena; Kosyakov, Victor; Palyanova, Galina et al.

In: Minerals, Vol. 9, No. 9, 531, 01.09.2019.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{92b1456eb3f3406e9e6dc3547e61be8b,

title = "Experimental modeling of noble and chalcophile elements fractionation during solidification of cu-fe-ni-s melt",

abstract = "We carried out a directed crystallization of a melt of the following composition (in mol. %): Fe 31.79, Cu 15.94, Ni 1.70, S 50.20, Sn 0.05, As 0.04, Pt, Pd, Rh, Ru, Ag, Au, Se, Te, Bi, and Sb by 0.03. The obtained cylindrical sample consisted of monosulfide solid solution (mss), nonstoichometric isocubanite (icb*), and three modifications of intermediate solid solution (iss1, iss2, iss3) crystallized from the melt. The simultaneous formation of two types of liquids separated during cooling of the parent sulfide melt was revealed. In the first, concentrations of noble metals associated with Bi, Sb, and Te were found. The second is related to Cu and was found to contain a large amount of S in addition to Bi and Sb. We established the main types of inclusions formed during fractional crystallization of Pt-bearing sulfide melt. It was shown that noble metals are concentrated in inclusions in the form of RuS2, PdTe2, (Pt,Pd)Te2, PtRhAsS, and Ag2Se, doped with Ag, Cu, and Pd, in mss and in the form of PtAs2; Au-doped with Ag, Cu, and Pd; Ag2Te; and Pd(Bi,Sb)xTe1−x in icb* and iss. As solid solutions in the base metal sulfides, Rh is present in mss, Sn in iss.",

keywords = "Ag, Au, Cu-Fe-Ni-S system, Drop-shaped inclusions, Fractional crystallization, Metalloid elements, Platinum-group elements, CRYSTALLIZATION, SYSTEM, GROUP MINERALS, platinum-group elements, fractional crystallization, PLATINUM-GROUP-ELEMENTS, MONOSULFIDE-SOLID-SOLUTION, BEHAVIOR, SULFIDE ORES, HIGHLY SIDEROPHILE, drop-shaped inclusions, PD, metalloid elements, PHASE-RELATIONS",

author = "Elena Sinyakova and Victor Kosyakov and Galina Palyanova and Nikolay Karmanov",

year = "2019",

month = sep,

day = "1",

doi = "10.3390/min9090531",

language = "English",

volume = "9",

journal = "Minerals",

issn = "2075-163X",

publisher = "MDPI AG",

number = "9",

}

RIS

TY - JOUR

T1 - Experimental modeling of noble and chalcophile elements fractionation during solidification of cu-fe-ni-s melt

AU - Sinyakova, Elena

AU - Kosyakov, Victor

AU - Palyanova, Galina

AU - Karmanov, Nikolay

PY - 2019/9/1

Y1 - 2019/9/1

N2 - We carried out a directed crystallization of a melt of the following composition (in mol. %): Fe 31.79, Cu 15.94, Ni 1.70, S 50.20, Sn 0.05, As 0.04, Pt, Pd, Rh, Ru, Ag, Au, Se, Te, Bi, and Sb by 0.03. The obtained cylindrical sample consisted of monosulfide solid solution (mss), nonstoichometric isocubanite (icb*), and three modifications of intermediate solid solution (iss1, iss2, iss3) crystallized from the melt. The simultaneous formation of two types of liquids separated during cooling of the parent sulfide melt was revealed. In the first, concentrations of noble metals associated with Bi, Sb, and Te were found. The second is related to Cu and was found to contain a large amount of S in addition to Bi and Sb. We established the main types of inclusions formed during fractional crystallization of Pt-bearing sulfide melt. It was shown that noble metals are concentrated in inclusions in the form of RuS2, PdTe2, (Pt,Pd)Te2, PtRhAsS, and Ag2Se, doped with Ag, Cu, and Pd, in mss and in the form of PtAs2; Au-doped with Ag, Cu, and Pd; Ag2Te; and Pd(Bi,Sb)xTe1−x in icb* and iss. As solid solutions in the base metal sulfides, Rh is present in mss, Sn in iss.

AB - We carried out a directed crystallization of a melt of the following composition (in mol. %): Fe 31.79, Cu 15.94, Ni 1.70, S 50.20, Sn 0.05, As 0.04, Pt, Pd, Rh, Ru, Ag, Au, Se, Te, Bi, and Sb by 0.03. The obtained cylindrical sample consisted of monosulfide solid solution (mss), nonstoichometric isocubanite (icb*), and three modifications of intermediate solid solution (iss1, iss2, iss3) crystallized from the melt. The simultaneous formation of two types of liquids separated during cooling of the parent sulfide melt was revealed. In the first, concentrations of noble metals associated with Bi, Sb, and Te were found. The second is related to Cu and was found to contain a large amount of S in addition to Bi and Sb. We established the main types of inclusions formed during fractional crystallization of Pt-bearing sulfide melt. It was shown that noble metals are concentrated in inclusions in the form of RuS2, PdTe2, (Pt,Pd)Te2, PtRhAsS, and Ag2Se, doped with Ag, Cu, and Pd, in mss and in the form of PtAs2; Au-doped with Ag, Cu, and Pd; Ag2Te; and Pd(Bi,Sb)xTe1−x in icb* and iss. As solid solutions in the base metal sulfides, Rh is present in mss, Sn in iss.

KW - Ag

KW - Au

KW - Cu-Fe-Ni-S system

KW - Drop-shaped inclusions

KW - Fractional crystallization

KW - Metalloid elements

KW - Platinum-group elements

KW - CRYSTALLIZATION

KW - SYSTEM

KW - GROUP MINERALS

KW - platinum-group elements

KW - fractional crystallization

KW - PLATINUM-GROUP-ELEMENTS

KW - MONOSULFIDE-SOLID-SOLUTION

KW - BEHAVIOR

KW - SULFIDE ORES

KW - HIGHLY SIDEROPHILE

KW - drop-shaped inclusions

KW - PD

KW - metalloid elements

KW - PHASE-RELATIONS

UR - http://www.scopus.com/inward/record.url?scp=85073341601&partnerID=8YFLogxK

U2 - 10.3390/min9090531

DO - 10.3390/min9090531

M3 - Article

AN - SCOPUS:85073341601

VL - 9

JO - Minerals

JF - Minerals

SN - 2075-163X

IS - 9

M1 - 531

ER -

ID: 21939030