Discussion of "Tectonic Controls of Mississippi Valley-Type Lead-Zinc Mineralization in Orogenic Forelands" by D.C. Bradley and D.L. Leach
The interesting and useful study by Bradley and Leach (2003) of tectonic controls on Mississippi Valley-type (MVT) mineralization in orogenic forelands is marred by a surprising disregard for published evidence for the age of these deposits. This problem is of major importance, because the ages of the deposits control their relation to tectonic features. Here are three examples of the problem, showing how they relate to the suggested tectonic models.
S. E. Kesler et al., "Discussion of "Tectonic Controls of Mississippi Valley-Type Lead-Zinc Mineralization in Orogenic Forelands" by D.C. Bradley and D.L. Leach," Mineralium Deposita, vol. 39, no. 4, pp. 512-519, Springer Verlag, Aug 2004.
The definitive version is available at https://doi.org/10.1007/s00126-004-0422-3
Geosciences and Geological and Petroleum Engineering
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Article - Journal
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