Gold fractionation in crystallizing magma.

Abstract

NAA of Au in a number of minerals from different intrusive and skarn rocks enables calculation of a coefficient of accumulation (K_a) which indicates a persistent accumulation of metal in all intrusive rocks studied (K_a 1.3-3.5) in the fine-grained rock matrix. Higher Au concentrations in minerals of pegmatites and contact-metasomatites (K_a 20-190) indicate substantial Au accumulation. Experimental data indicate the ratio of partition of Au between fluid phase and ore-generating granitic melt is approx 50. -S.R.

Original language	English
Title of host publication	Doklady, Academy of Sciences of the USSR, Earth Sciences Section
Pages	193-196
Number of pages	4
Volume	258
Publication status	Published - 1983

ASJC Scopus subject areas

Earth and Planetary Sciences(all)
Environmental Science(all)

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title = "Gold fractionation in crystallizing magma.",

abstract = "NAA of Au in a number of minerals from different intrusive and skarn rocks enables calculation of a coefficient of accumulation (Ka) which indicates a persistent accumulation of metal in all intrusive rocks studied (Ka 1.3-3.5) in the fine-grained rock matrix. Higher Au concentrations in minerals of pegmatites and contact-metasomatites (Ka 20-190) indicate substantial Au accumulation. Experimental data indicate the ratio of partition of Au between fluid phase and ore-generating granitic melt is approx 50. -S.R.",

author = "Korobeynikov, {A. F.}",

year = "1983",

language = "English",

volume = "258",

pages = "193--196",

booktitle = "Doklady, Academy of Sciences of the USSR, Earth Sciences Section",

}

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T1 - Gold fractionation in crystallizing magma.

AU - Korobeynikov, A. F.

PY - 1983

Y1 - 1983

N2 - NAA of Au in a number of minerals from different intrusive and skarn rocks enables calculation of a coefficient of accumulation (Ka) which indicates a persistent accumulation of metal in all intrusive rocks studied (Ka 1.3-3.5) in the fine-grained rock matrix. Higher Au concentrations in minerals of pegmatites and contact-metasomatites (Ka 20-190) indicate substantial Au accumulation. Experimental data indicate the ratio of partition of Au between fluid phase and ore-generating granitic melt is approx 50. -S.R.

AB - NAA of Au in a number of minerals from different intrusive and skarn rocks enables calculation of a coefficient of accumulation (Ka) which indicates a persistent accumulation of metal in all intrusive rocks studied (Ka 1.3-3.5) in the fine-grained rock matrix. Higher Au concentrations in minerals of pegmatites and contact-metasomatites (Ka 20-190) indicate substantial Au accumulation. Experimental data indicate the ratio of partition of Au between fluid phase and ore-generating granitic melt is approx 50. -S.R.

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M3 - Chapter

AN - SCOPUS:0021061139

VL - 258

SP - 193

EP - 196

BT - Doklady, Academy of Sciences of the USSR, Earth Sciences Section

ER -