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矿床地质  2002 

花岗质熔体中SnO2含量与结晶温度和时间的关系

Keywords: 地球化学,锡石,SnO2含量,花岗质熔体,结晶-分异作用,高温高压实验

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Abstract:

锡石在花岗质熔体中的溶解度,是阐明花岗岩全岩型锡矿成因的关键。文章设计了以结晶温度和结晶时间为参数的两组熔化_结晶实验,试图模拟锡石在岩浆结晶分异过程中的动态变化,并在花岗岩-HF-H2O体系的高温高压实验结果基础上,讨论花岗质熔体中SnO2含量与结晶温度和时间的关系。实验结果表明:①在岩浆条件下可以形成锡石;②随着结晶温度的降低和时间的加长,熔体中SnO2含量先升高后降低,表明其经历了由不饱和到过饱和,进而结晶出锡石的动态过程。

References

[1]  [18]Xiong X L,Zhu J C and Rao B. 1996. A prelininary experimental investigation on genesis of topaz greisen [ J ]. Chinese Science Bulletin,41(10): 917~919.
[2]  [19]陈骏,王汝成,周建平,等.2000.锡的地球化学[M].南京:南京大学出版社.78~115.
[3]  [20]李福春,朱金初,饶冰,等.2000.富氟花岗岩中萤石岩浆成因的新证据[J]矿物学报,20(3):224~227.
[4]  更多...
[5]  [21]李福春.2000.华南富锂氟花岗岩成矿熔体和成矿流体形成与演化的实验研究[D](博士论文).导师:朱金初.南京:南京大学.110页
[6]  [1]Chen J,Wang R C,Zhou J P,et al. 2000. Geochemistry of tin [M]. Nanjing: Nanjing University Press. 78~115 (in Chinese).
[7]  [2]Durasova N A,Barsukov V L,Ryabchikov I O,et al. 1985. The behaviour of tin in the crystallization of aluminosilicate melts [J ]. G eochemistry Internat.,22(7): 58~62.
[8]  [3]Keppler H and Wyllie P J. 1991. Partitioning of Cu,Sn,Mo,U and Th between melt and aqueous fluid in the systems haplograniteH2O-HCl and haplogranite-H2O-HF [ J ]. Contrib. Mineral.Petrol.,109: 139~ 150.
[9]  [4]Lehmann B. 1990. Metallogeny of tin [M]. New York: Springer-Verlag. 211p.
[10]  [5]Li F C,Zhu J C,Rao B,et al. 2000. New evidence for magmatic genesis of fluorite in the F-rich granite [ J ]. Acta Mineralogica Sinica,20(3): 224~227 (in Chinese with English abstract).
[11]  [6]Li F C. 2000. Experimental study on generation and evolution of oreforming melts and ore-forming fluids for Li-F-rich granites in South China[D] (A doctoral dissertation). Supervisor: Zhu J C. Nanjing: Nanjing University. 110p.
[12]  [7]Linnen R,Pichavant M,Holtz F,et al. 1995. The effect of fo2 on the solubility,diffusion and speciation of tin in haplogranitic melt at 850℃ and2 kbar [J]. Geochim. Cosmochim. Acta,59(8): 1579~ 1588.
[13]  [8]Linnen R L,Pichavant M and Holtz F. 1997. The combined effect of fo2 and melt composition on SnO2 solubility and tin diffusivity in haplogranitic melts [J]. Geochim. Cosmochim. Acta,60: 4965~4976.
[14]  [9]Naski G C and Hess P C. 1985. SnO2 solubility: Experimental results in peralumious and peralkaline high silica glasses (abs) [J]. EOS,66:412.
[15]  [10]Nekrasov I Ya,Epel\'baum M B and Sobolev V P. 1979. Study of the model system granite-SnO(SnO2)-fluid: Tin content of quartz-al- bite melt as a function of oxygen fugacity (fo2 ) [ J ]. Doklady Akad. Nank SSSR,247:220~223 (in Russian).
[16]  [11]Nekrasov I Ya,Epel\' baum M B and Sobolev V P. 1980. Distribution of tin between melt and chloride fluid in the granite-SnO-SnO2-fluid system [J]. Doklady Akad. Nank SSSR,252(4): 977~981 (in Russian).
[17]  [12]Nekrasov I Ya. 1984. Tin in magmatic and postmagmatic process [M]. Moscow: Nauka Press,236 (in Russian).
[18]  [13]Ryabchikov I D,Durasova N A,Barsukov V I,et al. 1978. Oxidationreduction potential as factor of an ore-bearing capacity of acid mag- mas [J]. Geokhimiya,(8): 1243~1246 (in Russian).
[19]  [14]Stemprok M and Voldan J. 1978. Solubility of tin dioxide in dry sodium rich granite melts: Mineralogic criteria for the relationship between magmatism and ore mineralization [ J ]. Internat. Mineralog.Assoc. Gen. Mtg,11th Proc,125~133.
[20]  [15]Stemprok M. 1990. Solubility of tin,tungsten and molybdenum oxides in felsic magmas [J]. Mineralium Deposita,25: 205~212.
[21]  [16]Taylor J R and Wall V. 1992. The behavior of tin in granitoid magmas [J]. Econ. Geol.,87: 403~420.
[22]  [17]Webster J D,Thomas R,Rhede D,et al. 1997. Melt inclusions in quartz from an evolved peraluminous pegmatite: Geochemical evidence for strong tin enrichment in fluorine-rich and phosphorus-rich residual liquids [J ]. Geochim. Cosmochim. Acta,61 (13): 2589~2604.

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