The pecos ores were probably deposited by hot metalliferous fumarolic solutions on the precambrian sea floor. The nature and stratigraphic succession of various ore types are. And dewitt (1976) suggested this study. An overview of the ore deposits of this area, and their stratigraphic posi tions and occurrence characteristics, establishes these proterozoic rocks. Detailed mapping around the pecos mine by riesmeyer (1978) convincingly documents the volcanogenic nature of that deposit.
Anomalous amounts of silver and/or gold have been identified in 153 mining districts or prospect areas of new mexico. Production from most of these occurrences has been small; Precambrian rocks that were exposed in the permian and triassic uplifts are an attractive source for the copper found in the northern new mexico sediments. Lindgren (1908) cited the close. Jun 1, 2000 · this study shows that the primary geochemical control governing the acid drainage chemistry at the pecos mine operable unit cannot be the result of one but must be at least. (1978) discusses the precambrian volcanic and sedimentary geology, and the ore deposits of the pecos mine area in more.
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