Monte Cristo Mine (Julian Merger Mining property; Amethyst vein), Morgan Butte, Wickenburg Mts, Yavapai Co., Arizona, USA
|Latitude & Longitude (WGS84):||34° 3' 52'' North , 112° 34' 58'' West|
|Latitude & Longitude (decimal):||34.0644444444, -112.582777778|
‡Ref.: USGS Mineral Resources of the US (1907): Part 1: 182.
Weed, W.H. (1920) The Mines Handbook, Vol. XIV: 360.
Bastin, E.S. (1922), Primary native-silver ores near Wickenburg, Arizona, and their bearing on the genesis of the silver ores of Cobalt, Ontario, USGS Bull. 735: 131-155.
Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 9, 15, 20, 25, 27, 28.
Bilbrey, J.H., Jr. (1962) Cobalt. U.S. Bureau of Mines Information Circular 8103: 28.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Rept. 92-10: 17 (Table 1).
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 101, 129, 167, 213, 313, 335, 373, 390, 393.
Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 1.
USGS Morgan Butte Quadrangle map.
Arizona Department of Mineral Resources Monte Cristo Mine and Mill file.
MRDS database Dep. ID #10027541, MRDS ID #M003309; and, Dep. ID #10283899, MAS ID #0040251444.
A former underground Ag-Au-Cu-Ni-Co-As mine located in the W½ sec. 4, T8N, R3W (Morgan Butte 7.5 minute topo map), near Wickenburg. Claims also extend into the NE¼NW¼SW¼ of sec. 4.
Mineralization is ore in bands and lenses. Ore control was faulting, shearing and igneous activity - dikes. Ore concentration was oxidation at near surface. Alteration was minor to none.
Area structures include veins (and genetically related [?] dikes) that trend N10W to N40W and crosscut Precambrian fabric. Foliation in Precambrian schist and gneiss trends N25E to N65E.
13 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
1600 - 1800 Ma
|Early Proterozoic granitic rocks|
Age: Statherian (1600 - 1800 Ma)
Description: Wide variety of granitic rocks, including granite, granodiorite, tonalite, quartz diorite, diorite, and gabbro. These rocks commonly are characterized by steep, northeast-striking foliation. (1600-1800 Ma)
Comments: ~ 1.6 - 1.8 Ga
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052.