REE Characteristic of Hydrothermal Calcite in Langdu Skarn Copper Deposit

Abstract:

Langdu is one of the highest grade, skarn copper deposits in Zhongdian area, Yunnan province. The chondrite-normalized REE patterns for syn-sulfide calcite from Langdu deposit are unique, being HREE-enriched, LREE-depleted and have significant positive Eu anomalies. REEs could derive from magmatic fluid exsolved from near melt. This distribution behavior is predominately constricted by REE patterns of hydrothermal fluid and the stability of complex in solutions than crystallographic factors. The D_REE are increase with the decrease of ion radius. The optimum ion radius of substitutional site for REEs in the hydrothermal calcites is 0.1032nm. Eu occurs as Eu ²⁺ and complex species can explain the positive Eu anomalies

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 184-189
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.184
• Online since: May 2012
• Authors: Tao Ren, Run Sheng Han, Yu Zhao Hu
• Keywords: Hydrothermal Calcite, REE, Skarn Copper Deposit, Yunnan

References

[1] T. Green, N. Pearson: Geochimica et cosmochimica acta. Vol.49 (1985), pp.1465-1468

[2] M. Klein, H. G. Stosch, H. Seck: Chemical Geology. Vol.138 (1997), pp.257-271

[3] C. Q. Liu, A. Masuda, H. Shimizu, K. Takahashi, G. H. Xie: Geochimica et cosmochimica acta.Vol. 56(1992), pp.1523-1530

DOI: 10.1016/0016-7037(92)90221-4

[4] B. Lottermoser: Ore Geology Reviews.Vol.7 (1992), pp.25-41

[5] Y. Terakado, A. Masuda: Chemical Geology. Vol.69 (1988), pp.103-110

[6] S. A. Wood: Chemical Geology.Vol.82 (1990), pp.159-186

[7] Z. Hou, X. Qu, J. Zhou,Y. Yang, D. Huang, Q. Lv, et al: Acta Geologica Sinica. Vol.75 (2001), pp.48-87(in Chinese)

[8] Z. Hou, Y. Yang, X. Qu, D. Huang, Q. Lu:Acta Geologica Sinica. Vol.78 (2004), pp.109-120(in Chinese)

[9] Y. Yang, Z. Hou, D. Huang, X. Qu: Acta Geoscience Sinica. Vol. 23(2002), pp.17-24(in Chinese)

[10] P. Zeng, H. P. Wang, et al: Acta Geoscience sinica. Vol.25 (2004), pp.535-540 (in Chinese)

[11] R. Li: Jounal Mineral Petrology. Vol.15 (1995), pp.72-78 (in Chinese)

[12] W. Su, R. Hu, B. Xia, Y. Xia, Y. Liu: Chemical Geology. Vol.258 (2009), pp.269-274

[13] J. Peng, R. Z. Hu, L. Qi, J. Zhao, Y Fu: Geological Review. Vol.50 (2004), pp.25-32

[14] M. Gaspar, C. Knaack, L. D. Meinert, R. Moretti: Geochimica et cosmochimica acta. Vol. 72(2008), pp.185-205(in Chinese)

DOI: 10.1016/j.gca.2007.09.033

[15] G. Klinkhammer, H. Elderfield, J. Edmond, A. Mitra: Geochimica et cosmochimica acta. Vol. 58 (1994), pp.5105-5013

DOI: 10.1016/0016-7037(94)90297-6

[16] A. Michard: Geochimica et cosmochimica acta. Vol.53 (1989), pp.745-750

DOI: 10.1016/0016-7037(89)90017-3

[17] A. Michard, F. Albarède: Chemical Geology. Vol.55 (1986), pp.51-60

[18] R. A. Mills, H. Elderfield: Geochimica et cosmochimica acta. Vol.59 (1995), pp.3511-3524

DOI: 10.1016/0016-7037(95)00224-n

[19] M. Reed, P. Candela, P. Piccoli: Contributions to Mineralogy and Petrology. Vol.140 (2000), pp.251-262

[20] M. Bau: Chemical Geology. Vol.93 (1991), pp.219-230

[21] D. Mineyev: Geochemistry. Vol.12 (1963), pp.129-149

[22] J. W. Morgan, G. A. Wandless: Geochimica et cosmochimica acta. Vol.44 (1980), pp.973-980.

DOI: 10.1016/0016-7037(80)90286-0

[23] R Exley: Earth and Planetary Science Letters. Vol.48 (1980), pp.97-110

[24] J. R. Haas, E. L. Shock, D. C. Sassani: Geochimica et cosmochimica acta. Vol. 59(1995), pp.4329-4350

[25] R. Shannon: Acta Crystallographica Section A: Crystal Physics, Diffraction, Theoretical and General Crystallography. Vol.332 (1976), pp.751-767

[26] J. D Rimstidt, A. Balog, J. Webb: Geochimica et cosmochimica acta. Vol.62 (1998), pp.851-863

[27] S. Zhong, A. Mucci: Geochimica et cosmochimica acta. Vol.59 (1995), pp.443-453

[28] D. A. Sverjensky: Earth and Planetary Science Letters. Vol.67(1984), pp.70-78

[29] I. Kravchuk, S. Malinin, N. Varezhkin: Geokhimiya. Vol.12 (1989), pp.1771-1781

[30] D. E. Allen, Jr. W. Seyfried: Geochimica et cosmochimica acta. Vol.69 (2005), pp.675-683