Adjust Mine (Adjust group; Mellor claims; Little Treasure Mine; Blue Bird vein; Silver Cross claims; Laurence Mine; Old Odell), Lee Mountain area, Saddle Mountain District, Dripping Spring Mts, Pinal Co., Arizona, USA
Latitude: 33°2'9"N
Longitude: 110°41'30"W
A former underground Pb-Ag-Cu-Au-Zn mine located on 13 unpatented claims, in the S½ (center SE¼SE¼) sec. 34, T4S, R16E (Christmas 7.5 minute topo map), 1.4 miles SW of Lee Mountain. Claims extend into secs. 35 & 36, and into secs. 1-4 and 9, T5S, R16E. Discovered by N.H. Mellor of Winkelman, AZ. The Adjust Mining Co. produced 1920-1939. Additional names which apply to this property: Gold Gulch Mine; Big Treasure Mine; Hope Metals Mine; and Patented claims MS 2179, 2180, 2182.
Mineralization is a vein deposit with a tabular ore body hosted in andesite. The ore zone is 457.2 meters long and 3.66 meters wide, strikes N76E and dips vertically. Ore control was NE-trending veins. Alteration is vein minerals replacing andesite. Local structures include NE-trending quartz-mica diorite dikes. The Blue Bird vein is completely oxidized from the surface to about 50 feet in depth. The average width is 4 feet. An associated rock unit is diorite. Related in style and age of mineralization to the Christmas Mine, 3 miles NW in Gila County.
Workings are the principal developments on the Blue Bird veins. Exploration by ASARCO on this property in 1967.
References
Ross, Clyde P. (1925b) Ore Deposits of the Saddle Mountain and Banner Mining Districts, Arizona, USGS Bull. 771: 41-43.
Galbaith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 9, 15, 17, 18, 19, 26.
US Atomic Energy Commission Preliminary Reconnaissance Report 172-488 (1953): 34.
Creasey, S.C. and Kistler, R.W. (1962), USGS Professional Paper 450-D: D1-D5.
Willden (1964), USGS Bulletin 1161-E.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 13 (Table 1).
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 100, 229, 340, 372, 373, 378.
USGS Chrismas Quadrangle map.
Arizona Department of Mineral Resources Adjust group file.
Arizona Department of Mineral Resources Little Treasure file.
Arizona Department of Mineral Resources U file.
U.S. Bureau of Mines file data - cluster 684.
U.S. Bureau of Land Management Mining District Sheet #701.
U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology production file data.
MRDS database Dep. ID #10048325, MRDS ID #M899902; and Dep. ID #10102405, MRDS ID #M000641; and Dep. ID #10210635, MAS ID #0040210095; and Dep. ID #10283472, MAS ID #0040210622.
Mineral List
14 entries listed. 12 valid minerals.
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