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Mineralium Deposita

, Volume 30, Issue 3–4, pp 235–245 | Cite as

Tourmalinite from northern Guangxi, China

  • Mao Jingwen
Article

Abstract

The extensive development of tourmalinite is a feature that distinguishes the northern Guangxi polymetallic tin province of China from similar metallogenic provinces elsewhere. Two types of tourmalinite occur in the province. The first type, in the lower part of the Early Proterozoic Sibao Group, is bedded, stratiform or lenticular tourmalinite that shows well-developed laminated, gel, and degelatinized structures. Its mineral assemblage is very simple and the grain size ranges from 2 to 8 μm. This tourmaline is relatively rich in Mg, with an Fe/(Fe + Mg) ratio of 0.25–0.50.

The second type of tourmalinite occurs as lodes distributed in the exocontact zone of Late Proterozoic biotite-granite intrusions. Its mineral assemblage is relatively complex; the tourmaline is present as euhedral or subhedral crystals ranging from 0.1 to 3.5 mm, mostly from 0.5 to 1 mm. This tourmaline commonly exhibits a radiating, zoned structure with Fe/(Fe + Mg) ratios of 0.64–0.79. It is suggested that the bedded tourmalinite formed by exhalation in an Early Proterozoic spreading-ridge environment, whereas the vein tourmalinite formed in a plate-convergence setting genetically associated with emplacement of Late Proterozoic biotite granite. As the tourmalinites themselves are related to mineralized rocks and orebodies, their origin and the related boron cycle of the region reflect to some extent the formation and evolution of the associated polymetallic tin deposits of the region.

Keywords

Grain Size Boron Size Range Mineral Resource Mineral Assemblage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Barnes, R.G. (1983) Mineralization of the Broken Hill block. Proc. Austral. Inst. Min. Metall., Broken Hill Conf. 12:71–79Google Scholar
  2. Benvenuti, M., Lattanzi, P., Tanelli, G. (1989) Tourmalinite-associated Pb-Ag(Zn) deposits at Bottino, Apuane Alps, Italy: geologic setting, mineral textures, and sulfide chemistry. Econ. Geol. 84:1277–1292Google Scholar
  3. Charoy, B. (1982) Tourmalinization in Cornwall, England. In: Evans A.M. (ed.) Metallization associated with acid magmatism. Wiley, New York, pp. 63–70Google Scholar
  4. Clayton, R.N., O'Neil, J.R., Mayeda, T.K. (1972) Oxygen isotope exchange between quartz and water. J. Geophys. Res. 77:3057–3067Google Scholar
  5. Dong Baolin (1990) Sibao Group in Guangxi and its metallogeny. Guangxi Geology, 3:53–58Google Scholar
  6. Ethier, V.G., Campbell, F. A. (1977) Tourmaline concentrations in Proterozoic sediments of the southern Cordillera of Canada and their economic significance. Can. J. Earth Sci. 14:2348–2363Google Scholar
  7. Guo Lingzhi, Shi Yangshen, Ma Ruishi (1982) On formation of regional tectonic pattern and regularity of crustal evolution of South China. In Li Chunyu, Guo Lingzhi, Zhu Xia (eds.) Plate Tectonics. Chinese Academy of Geological Sciences, Beijing, pp. 153–164Google Scholar
  8. Hamilton, J.M., Bishop, D.T., Morris, H.C., Owens, O.E. (1982) Geology of the Sullivian orebody, Kimberley, B.C., Canada. In: Hutchinson, R.W., Spence, C.D., Franklin, J.M. (eds.) Precambrian sulphide deposit. Geological Association of Canada. Special Paper 25, GAS, Ontario, pp. 597–665Google Scholar
  9. Han Fa, Hutchinson, R.W. (1989) Evidence for exhalative origin for rocks and ores of the Dachang tin-polymetallic field. The orebearing formation and hydrothermal exhalative sedimentary rocks. Mineral Deposits 8:25–40Google Scholar
  10. Henry, D.J., Guidotti, C.V. (1985) Tourmaline as a petrogenetic indicator mineral: an example from the staurolite-grade metapelites of NW Maine. Am. Min. 70:1–15Google Scholar
  11. Li Guochu, Ma Fujun, Lin Jinjiang, Yang Kaitai (1987) Geologic characteristics and metallogenic mechanism of Baotan tin deposit in the northern Guangxi region. Papers of the International Symposium on the Geology of Tin Deposits, Nanning and Dachang, China, pp. 247–254Google Scholar
  12. Li Zaiji (1987) Some geochemical characteristics of tin deposits hosted by volcanic basic-ultrabasic complexes in northern Guangxi. Papers of the International Symposium on the Geology of Tin Deposits, Nanning and Dachang, China, pp. 234–240Google Scholar
  13. Lu Jianchun, Huang Youde (1988) A tin deposit genetically related to submarine volcaniclastic rocks and ultramafic rocks. Mineral Deposits 7:29–41Google Scholar
  14. Mao Jingwen (1987) Geological features and minerogenetic series of tin polymetallic deposits in Jiuwandashan-Yuanbaoshan area, northern Guangxi, Mineral Deposits 6:23–32Google Scholar
  15. Mao Jingwen (1988) The discovery of laminar tin mineralization in northern Guangxi and its significance. Mineral Deposits 7:63Google Scholar
  16. Mao Jingwen, Tang Shaohua (1986) On the alteration of Yidong-Wudi tin deposit in Guangxi. Bull. Chinese Academy of Geological Sciences 13:51–71Google Scholar
  17. Mao Jingwen, Song Shuhe, Chen Yuchuan (1988) Igneous rock series and metallogenic series of tin polymetallic deposits in northern Guangxi region. Beijing Publishing House, Beijing 198 ppGoogle Scholar
  18. Mao Jingwen, Zhang Zongqing, Dong Baolin (1990) A new Sm-Nd isotopic chronology of Sibao Group in southern margin of Yangtze massif. Geol. Rev. 36:264–268Google Scholar
  19. McArdle, P., Fitzell, M., Oosterom, M.G., O'Connor, P.J., Kennan, P.S. (1989) Tourmalinite as a potential host rock for gold in the Caledonides of southeast Ireland. Mineral. Deposita 24:154–159Google Scholar
  20. Neiva, A.M.R. (1974) Geochemistry of tourmaline (schorlite) from granites, aplites and pegmatites from northern Portugal. Geochim. Cosmochim. Acta 38:1307–1317Google Scholar
  21. Peng Daliang, Guo Yuru, Deng Degui (1987) An approach to mineralization processes and ore genesis of tin deposits in northern Guangxi. Papers of the International Symposium on the Geology of Tin Deposits, Nanning-Dachang, China, pp. 226–233Google Scholar
  22. Plimer, I.R. (1986) Tourmalinites from the Golden Dyke dome, northern Australia. Mineral. Deposita 21:263–270Google Scholar
  23. Plimer, I.R. (1988) Tourmalinites associated with Australia Proterozoic submarine exhalative ores. In: Friedrich, G.H., Herzig, P.M. (eds.) Base metal sulfide deposits in sedimentary and volcanic environments. Springer, Berlin, pp. 255–283Google Scholar
  24. Plimer, I.R., Lees, T.C. (1988) Tourmaline-rich rock associated with the submarine hydrothermal Rosebery Zn-Pb-Cu-Ag-Au deposit and granites in western Tasmania, Australia. Mineralogy Petrology 38:81–103Google Scholar
  25. Pollard, P.J., Pichavant, M., Charoy, B. (1987) Contrasting evolution of fluorineand boron-rich tin systems. Mineral. Deposita 22:315–321Google Scholar
  26. Shi Lin, Chen Jishen, Wu Shangling, Peng Xingjie, Tang Shangchun (1989) Metallogenic regularity of west Yunnan tin belt. Geological Publishing House, Beijing, 456 ppGoogle Scholar
  27. Sillitoe. R.H., Halls, C., Grant, J.N. (1975) Porphry tin deposits in Bolivia. Econ. Geol. 70:913–927PubMedGoogle Scholar
  28. Slack, J.F. (1982) Tourmaline in Appalachian-Caledonian massive sulphide deposits and its exploration significance. Trans. Instn. Min. Met. 91(B):B81-B89Google Scholar
  29. Slack J.F. (1993) Models for tourmalinite formation in the Middle Proterozoic Belt and Purcell Supergroup (Rocky Mountains) and their exploration significance. Geological Survey of Canada, Current Research Paper 93-1E, 33–40Google Scholar
  30. Slack, J.F., Herriman, N., Barnes, R.G., Plimer, I.R. (1984) Stratiform tourmalinites in metamorphic terranes and their geologic significance. Geology 12:713–716Google Scholar
  31. Slack, J.F., Palmer, M.R., Stevens, B.P.J., Barnes, R.G. (1993) Origin and significance of tourmaline-rich rock in the Broken Hill district, Australia. Econ. Geol., 88:505–541Google Scholar
  32. Spry, P.G. (1990) Geochemistry and origin of colticules (spessartinequartz rocks) associated with metamorphosed massive sulfide deposits. In: Spry, P.G., Bryndzia, L.T. (eds.) Regional metamorphism of ore deposits and genetic implications. VSP Publishers, Utrecht, pp. 49–75Google Scholar
  33. Spry, P.G., Wonder, J.D. (1989) Manganese-rich garnet rocks associated with the Broken Hill lead-zinc-silver deposit, New South Wales, Australia. Can. Mineral. 27:275–292Google Scholar
  34. Swanson, S.E., Newberry, R.J., Coulter, G.A., Dyehouse, T.M. (1990) Mineralogical variations as a guide to the petrogenesis of the tin granites and related skarns, Seward Peninsula, Alaska. In: Stein, H.J., Hannah, J.L. (eds.) Ore-bearing granite systems: petrogenes is and mineralizing processes. Geological Society of America, Special Paper 246, GSA, Inc., Colorado, pp. 121–142Google Scholar
  35. Taylor, B.E., Slack, J.F. (1984) Tourmalines from Appalachian-caledonian massive sulfide deposits: textural, chemical, and isotopic relationships. Econ. Geol. 79:1703–1726Google Scholar
  36. Taylor, R.G. (1979) Geology of tin deposits. Elsevier, Amsterdam, Oxford, New York, 543 ppGoogle Scholar
  37. Turekian, K.K., Wedepohl, K.H. (1961) Distribution of the elements in some major units of the Earth's crust. Geol. Soc. Am. Bull. 72:175–192PubMedGoogle Scholar
  38. Von Damm, K.L., Edmond, J.M., Measures, C.I., Grant, B. (1985) Chemistry of submarine hydrothermal solutions at Guaymas Basin, Gulf of California. Geochim. Cosmochim. Acta 49:2221–2237Google Scholar
  39. Xu Jun (1987) Geology of the basic-ultrabasic rock zone and the associated tin, platinum deposits on the eastern side of Yuanbao Mt, Guangxi. Acta Petrol. Mineral. 6:193–202Google Scholar
  40. Xu Wenxin (1987) Preliminary study on physico-chemical conditions of major tin deposits in Guangxi, Geology of Guangxi. (2):55–63Google Scholar

Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • Mao Jingwen
    • 1
  1. 1.Institute of Mineral DepositsChinese Academy of Geological SciencesBeijingChina

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