Mafic-ultramafic intrusions with sulfide Cu-Ni-PGE mineralization: morphology and structural position
https://doi.org/10.52349/08697892_2021_86_92-96
Abstract
The formation of sulfide Cu-Ni-PGE deposits occurs in association with mafite-ultramafite intrusions, which are located in crustal stretching spaces, confined to fault zones with horizontal displacement of rocks. These faults are often located in rifting areas of igneous provinces due to the stress phenomena generated by plume-tectonic activity. The paper discusses structural morphology of large and small sulfide Cu-Ni-PGE deposits related to mafite-ultramafite intrusions. In addition, it is shown that the geometry of the intrusions, hosting deposits, and the location of mineral zones in them can be structurally subdivided into groups and controlled by the space created by structural deformations.
About the Author
S. I. Turchenko
Institute of Precambrian Geology and Geochronology Russian Academy of Sciences (IPGG RAS)
Russian Federation
Russian Federation
Doctor of Geological and Mineralogical Sciences, Chief Researcher
References
1. Gur’yanov V. A., Prikhod’ko V. S., Perestoronin A. N., Petukhova L. L., Pototskiy Yu. P., Sobolev L. P. Novyy tip medno-nikelevykh mestorozhdeniy yugo-vostoka Aldano-Stanovogo shchita [A new type of copper-nickel deposits in the south-east of the Aldan-Stanovoy Shield]. Doklady Eart Sciences, 2009, vol. 425, no. 4, pp. 505–508. (In Russian).
2. Turchenko S. I. Metallogeniya metamorfogennykh sul’fidnykh mestorozhdeniy Baltiyskogo shchita [Metallogeny of metamorphogenic sulfide deposits of the Baltic Shield]. Leningrad, Nauka, 1978, 120 p.
3. Turchenko S. I. Metallogenicheskie osobennosti Pechengskoy riftogennoy struktury (Kol’skiy geoblok Baltiyskogo shchita) [Metallogenic features of the Pechenga riftogenic structure (Kola geoblock of the Baltic Shield)]. Trudy Karel’skogo nauchnogo tsentra Rossiyskoy akademii nauk, 2016, no. 2, pp. 40–51. (In Russian).
4. Turchenko S. I. Low-sulfide PGE and nickel sulfide metallogeny of Paleoproterozoic riftogenesis of the Fennoscandian Shield. Geology of Ore Deposits, 2017, vol. 59, no. 2, pp. 83–92. (In Russian).
5. Turchenko S. I. Sulfur release during rock metamorphism in the Earth’s crust: application to gold deposits genesis. Regional Geology and Metallogeny, 2019, no. 77, pp. 60–66. (In Russian).
6. Chernyshov N. M. Platinonosnye formatsii Kursko-Voronezhskogo regiona (Tsentral’naya Rossiya) [Platinum-bearing formations of Kursk-Voronezh region (Central Russia)]. Voronezh, 2004, 448 p.
7. Barnes S.-J., Lightfoot P. C. Formation of magmatic nickel-sulfide ore deposits and processes affecting their copper and platinum-group element contents. In Hedenquist, J. W., Thompson, J. F. H., Goldfarb, R. J. and Richards, J. P. (eds.): Economic Geology 100th Anniversary Volume, 2005, pp. 179–213.
8. De Waal S. A., Maier W. D., Armstrong R. A., Gauert C. D. K. Parental magma and emplacement of the stratiform Uitkomst Complex, South Africa. The Canadian Mineralogist, 2001, vol. 39, pp. 557–572.
9. Lightfoot P. C., Evans-Lamswood D. Structural controls on the primary distribution of mafic-ultramafic intrusions containing Ni-Cu-Co-(PGE) sulfide mineralization in the roots of large igneous provinces. Ore Geology Reviews, 2015, vol. 64, pp. 354–386.
10. Lightfoot P. C., Stewart R., Gribbin G., Macek J., Mooney S. Relative contribution of magmatic and post-magmatic processes in the genesis of the Thompson Ni-Co sulfide ore deposits, Manitoba, Canada. 11th International Nickel Symposium: Abstract. Guiyang, China. 2012.
11. Maier W. D., Gomwe T. S., Barnes S.-J., Li C. Y., Theart H. Platinum group elements in the Uitkomst Complex, South Africa. Economic Geology, 2004, vol. 99, no. 3, pp. 499–516. DOI: 10.2113/gsecongeo.99.3.0499
12. Maier W. D., Barnes S.-J., Sarkar A., Ripley E., Li C., Livesey T. The Kabanga Ni sulfide deposit, Tanzania: I. Geology, petrography, silicate rock geochemistry, and sulfur and oxygen isotopes. Mineralium Deposita, 2010, vol. 45, pp. 419–441.
13. Naldrett A. J. From the mantle to the bank: the life of a Ni-Cu-(PGE) sulfide deposit. South Africa Journal of Geology, 2010, vol. 113, no. 1, pp. 1–32.
14. Page R. W., Hoatson D. M. Geochronology of the mafic-ultramafic intrusions. In Hoatson, D. M., Blake, D. H. (eds.): Geology and economic potential of the Palaeoproterozoic layered mafic-ultramafic intrusions in the East Kimberley, Western Australia. Australian Geological Survey Organisation, Bulletin, 2000, vol. 246, pp. 163–172.
15. Rundqvist D. V., Mitrofanov F. P. (eds.). Precambrian geology of the USSR. Amsterdam, Elsevier, 1992, vol. 9, 550 p.
Review
For citations:
Turchenko S.I. Mafic-ultramafic intrusions with sulfide Cu-Ni-PGE mineralization: morphology and structural position. Regional Geology and Metallogeny. 2021;(86):92–96. (In Russ.) https://doi.org/10.52349/08697892_2021_86_92-96
Views:
7
Email this article 