Jerome Grande shaft (Jerome-Grande prospect; Patented claims MS 2643), Hickey Mountain, Yavapai Co., Arizona, USA
‡Ref.: Anderson, C.A. & S.C. Creasey (1958), Geology and ore deposits of the Jerome area, Yavapai County, Arizona, USGS PP 308: 154.
Yale Peabody GNIS database (NOTE: this database is derived from USGS 1:24,000 topographic map data).
USGS Hickey Mountain Quadrangle map.
Arizona Department of Mineral Resources Jerome Grande Copper Co. file.
U.S. Bureau of Land Management Mining District Sheet 56.
MRDS database Dep. ID #10027267, MRDS ID #M002673; and, Dep. ID #10186670, MAS ID #0040251198.
A Cu occurrence/prospect with underground workings. Claims extend into sec. 27.
Mineralization was a massive sulfide ore body hosted in the Deception Rhyolite and Grapevine Gulch Formation. Ore control was stratigraphy and igneous activity. Ore concentration was oxidation at near surface. Alteration was chloritization and sericitization.
Area structures include massive sulfide lenses elongate parallel to bedding in metavolcanic rocks. Foliation in metavolcanic rocks trends N10W to N40W.
| Chalcopyrite|| 'Chlorite Group'|| Muscovite|
4 entries listed. 2 valid minerals.
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Locality Updated: Aggeneys, Namakwa District (Namaqualand), Northern Cape Province, South AfricaFrom Debbie Woolf, 17th Apr 2014 21:10:59