Abstract
Mississippi Valley-type (MVT) deposits are difficult exploration targets because the halo of dolomitization currently used for exploration do not conclusively define the location of the ore body. At Polaris Mine in the Canadian Arctic, the surrounding halo of dolomite alteration rarely extends more than 100 m from the ore body (Randell, 1994; Randell and Anderson, 1990). On the contrary, at the Beddiane Mine north-east Morocco, the halo of hydrothermal saddle dolomite forms an area of alteration extending several kilometers from the ore body (Bouabdellah, 1993), while there are areas of dolomitization at Gays River Mine that are not associated with any mineralization (Savard, 1996). Other exploration tools are needed to identify which dolomites are potential exploration targets.
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Héroux, Y., Chagnon, A., Dewing, K., Rose, H.R. (2000). The carbonate-hosted base-metal sulphide Polaris deposit in the Canadian Arctic: Organic matter alteration and clay diagenesis. In: Glikson, M., Mastalerz, M. (eds) Organic Matter and Mineralisation: Thermal Alteration, Hydrocarbon Generation and Role in Metallogenesis. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9474-5_13
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DOI: https://doi.org/10.1007/978-94-015-9474-5_13
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