Interfacial tension studies between Fe-Cu-Ni sulfide and Halo-Norilsk basalt slag system

被引:1
作者
Su, SG [1 ]
Mungall, J
Wang, J
Geng, K
机构
[1] China Univ Geosci, Dept Geol, Beijing 100083, Peoples R China
[2] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
[3] Univ Toronto, Dept Geol, Toronto, ON M5S 3B1, Canada
[4] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 1A4, Canada
来源
SCIENCE IN CHINA SERIES D-EARTH SCIENCES | 2005年 / 48卷 / 06期
基金
中国国家自然科学基金;
关键词
matte; slag; interfacial tension; Cu-Ni sulfide deposit;
D O I
10.1360/03yd0023
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The interfacial tension of the matte/halo-Norilsk basalt slag systems of FeS-Cu2S-Ni3S2 and FeO-FeS were investigated using the sessile drop technique. The results indicate that interfacial tension decreases with increasing copper and nickel contents in the matte of FeS-Cu2S-Ni3S2 system while it increases with increasing oxygen content in the matte of FeO-FeS system. It is inferred from these results that two conditions are critical for the formation of giant Cu-Ni sulfide deposits. One is that mafic-ultramafic parent magma of sulfide deposits should be rich in copper and nickel where due to the low interfacial tension, it is difficult to form sulfide droplet in the early stage of magma evolution. In other words, sulfide liquid conglomeration occurs more difficultly. The other condition is that the magma emplacement should be shallow; and a lot of faults occur in the magma emplacement field. Since oxygen content is high in the environment, interfacial tension is high, which helps sulfide liquid conglomeration and consequently Cu-Ni sulfide deposits form.
引用
收藏
页码:834 / 839
页数:6
相关论文
共 20 条
[1]   Ni, Cu, Au, and platinum-group element contents of sulphides associated with intraplate magmatism: A synthesis [J].
Barnes, SJ ;
Zientek, ML ;
Severson, MJ .
CANADIAN JOURNAL OF EARTH SCIENCES, 1997, 34 (04) :337-351
[2]  
Czamanske G.K., 1995, Resource Geology, V18, P1
[3]   PARTITIONING OF PLATINUM-GROUP ELEMENTS AND AU IN THE FE-NI-CU-S SYSTEM - EXPERIMENTS ON THE FRACTIONAL CRYSTALLIZATION OF SULFIDE MELT [J].
FLEET, ME ;
CHRYSSOULIS, SL ;
STONE, WE ;
WEISENER, CG .
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY, 1993, 115 (01) :36-44
[4]  
GHIORSO MS, 1995, CONTRIB MINERAL PETR, V119, P197, DOI 10.1007/s004100050036
[5]   SURFACE AND INTERFACIAL-TENSION OF THE NI-FE-S, NI-CU-S, AND FAYALITE SLAG SYSTEMS [J].
IP, SW ;
TOGURI, JM .
METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1993, 24 (04) :657-668
[6]  
KESKINEN K, 1984, SCAND J METALL, V13, P11
[7]  
KUCHARSKI M, 1994, CAN METALL QUART, V33, P197
[8]   A NUMERICAL-MODEL FOR THE COMPOSITIONAL VARIATIONS OF SUDBURY SULFIDE ORES AND ITS APPLICATION TO EXPLORATION [J].
LI, C ;
NALDRETT, AJ .
ECONOMIC GEOLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS, 1994, 89 (07) :1599-1607
[9]   Critical factors for the formation of a nickel-copper deposit in an evolved magma system: lessons from a comparison of the Pants Lake and Voisey's Bay sulfide occurrences in Labrador, Canada [J].
Li, C ;
Naldrett, AJ ;
Ripley, EM .
MINERALIUM DEPOSITA, 2001, 36 (01) :85-92
[10]   PLATINUM, PALLADIUM, GOLD, AND COPPER-RICH STRINGERS AT THE STRATHCONA MINE, SUDBURY - THEIR ENRICHMENT BY FRACTIONATION OF A SULFIDE LIQUID [J].
LI, C ;
NALDRETT, AJ ;
COATS, CJA ;
JOHANNESSEN, P .
ECONOMIC GEOLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS, 1992, 87 (06) :1584-1598