Deposit with commodities copper, molybdenum, tungsten, zinc, silver, rhenium
More information at and near this site: Re-AZ00026
| Feature ID | Re-Mo00310 |
|---|---|
| Geographic coordinates | -111.045518, 31.896951 |
| Point definition | Center of orebody |
| Reference | Barter and Kelly (1982); Figure 20.2 Date: 1982; Scale: Large (>1:24,000)
|
| Commodities | copper; molybdenum; tungsten; zinc; silver; rhenium (1) |
|---|---|
| Valuable materials | chalcopyrite; molybdenite; scheelite; bornite; sphalerite; native copper; cuprite; chrysocolla; tenorite; chalcocite |
| Associated materials | pyrite; garnet; galena; magnetite |
| Mineralization style | veinlets; disseminated grains; paint; crystals |
| Age of mineralization | 64-55 Ma |
| Host rock age | Laramide; Mississippian; Devonian; Cambrian; Precambrian |
| Host unit name | Twin Buttes Porphyry Complex; Ruby Star Granodiorite; Escabrosa Limestone; Martin Formation; Abrigo Formation; Bolsa Quartzite |
| Host lithologies | quartz monzonite porphyry; porphyritic quartz monzonite; limestone; limey dolomite; siltstone; sandstone; silty quartzite; quartzite; granite |
| Alteration | oxidation |
| Reference | Rauschkolb, M.H., 1983, The Geology of the Northwest Orebody, Twin Buttes Mine, Pima County, Arizona: University of Arizona, Master's thesis, 179 p. |
| Additional references | (1) John and Taylor (2016) |
“The Northwest Orebody is located northwest of the Twin Buttes fault and southwest of the porphyritic quartz monzonite. Better grade areas occur in metacarbonate rocks of the Abrigo Formation, Martin Formation, and Escabrosa Limestone.”
Barter, C.F., and Kelly, J.L., 1982, Geology of the Twin Buttes Mineral Deposit in Titley, S.R., ed., 1982, Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 407-432.
| Type | Model | Reference |
|---|---|---|
| Deposit model | Porphyry Cu-Mo | John, D.A., and Taylor, R.D., 2016, By-Products of Porphyry Copper and Molybdenum Deposits in Verplanck, P.L., and Hitzman, M.W., (eds), 2016, Rare Earth and Critical Elements in Ore Deposits: Society of Economic Geologists, Inc., Reviews in Economic Geology, Volume 18, p. 137-164. |
| Geoenvironmental model | Porphyry Cu | du Bray, E.A., 1995, ed., Preliminary compilation of descriptive geoenvironmental mineral deposit models: U.S. Geological Survey Open-File Report 95-831, 272 p. |