Main commodities | Cu; Zn |
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Ore minerals | chalcopyrite; hydrozincite; malachite; pyrite |
Quadrangle map, 1:250,000-scale | VA |
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Quadrangle map, 1:63,360-scale | D-4 |
Latitude | 61.7745 |
Longitude | -145.192 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This prospect is located on the east flank of Willow Mountain, about one-half mile west of the Richardson Highway; it is at an elevation of about 3,000 feet in the northeast corner of section 22, T. 1 S., R. 1 E., of the Copper River Meridian. This prospect is approximately located, perhaps within one-quarter mile. It is locality 53 of Cobb and Matson (1972) and locality 44 of Winkler and others (1981 [OFR 80-892-B]). |
Geologic descriptionHydrozincite and smaller amounts of chalcopyrite and malachite are sparsely but widely disrtibuted in limestone of the Jurassic Talkeetna Formation (Berg and Cobb, 1967, p. 52; Winkler and others, 1981 [OFR 80-892-B]; Winkler and others, 1981 [OFR 80-892-A]). | |
Geologic map unit | (-145.19412307537, 61.7740172627102) |
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Mineral deposit model | Disseminations or replacements in limestone |
Age of mineralization | Jurassic or younger; the host rocks have been assigned to the Jurassic Talkeetna Formation (Winkler and others, 1981 [OFR 80-892-A]. |
Alteration of deposit | Oxidation; hydrozincite is a secondary, hydrous carbonate of zinc. |
Workings or exploration | Only reconnaissance work has been carried out. |
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Indication of production | None |
MRDS Number | A011495 |
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References | |
Reporters | Travis L. Hudson |
Last report date | 12/14/2001 |