A Mn-Ag-Cu mine located in the SW¼SW¼ sec. 13, T1N, R15E, on the NW side of Big Johnnie Gulch, 2 miles north of Globe and 1 mile north of the Old Dominion "A" shaft, on private (patented) land. It includes the Mallory, or IXL, Mine and several small veins. Earliest records place these claims in the possession of the Globe-Boston Copper Mining Co. In 1906 the property was acquired by the Globe Consolidated Copper Co. The mine was closed in 1907 and in 1909 the company merged with the Cordova Copper Co. The New Dominion Copper Co. purchased the property in 1916. In 1942 the claims were acquired by T.J. Long of Globe. In February he sold the claims to C.W. Via. Other names which apply to this property are: IXL Patented claim MS 2311.
In the early days Mn-Ag ore was produced from several small veins. Later the focus was on 2 copper-bearing veins. Manganese ore was again produced from veins in limestone about 1955.
One of the manganese veins in limestone, whose outcrop passes through the collar of the Mallory shaft, strikes N.37ºE. and dips 70ºNW. It forms the boundary between a thin block of Troy quartzite and a thick diabase sill that crops out in Big Johnnie Gulch and underlies the Troy quartzite on Buffalo Hill to the east. The other vein strikes about N.10ºE., and the outcrops of the two veins join 300 feet SW of the shaft. The second vein follows a fault that brings the Martin and Escabrosa limestones into contact with the thin block of Troy quartzite, and south of the junction of the two veins it forms the boundary between the Escabrosa limestone and the diabase sill. Most of the dispalcement on these faults probably preceded or was contemporaneous with the intrusion of diabase, and the later displacement appears to have been very small.
On the 800 level, a contact between Mescal limestone and diabase is vertical and strikes N70E. It probably is an old fault that has been reopened after the intrusion of the diabase so as to permit the passage of mineralizing solutions that formed a narrow vein along the contact.
The vein filling consisted mainly of quartz, coarse granular pyrite, chalcopyrite, bornite, and specularite.
The Mallory shaft is the principal working and was originally sunk to 465 feet with crosscuts on the 200 and 450 levels. It was deepened to 817 feet circa 1906 and some development work was done on the 800 level. In 1923 it was retimbered and deepened to 1,200 feet with new levels at 1000 and 1200.
References:
Ransome, F.L. (1903) Geology of the Globe Copper District, Arizona, USGS PP 12: 155.
Peterson, N.P. (1962), Geology and ore deposits of the Globe-Miami District, Arizona, USGS PP 342: 97, 116-118.
USGS Globe Quadrngle map.
MRDS database Dep. ID #10209484, MAS ID #0040070483.
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Map Reference: 33°25'28"N , 110°47'17"W
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Mineral List:4 entries listed. 3 valid minerals.
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