Latitude: 33°20'41"N
Longitude: 110°30'51"W
A group of iron claims located in sec. 16, T1S, R18E, 3 miles West of San Carlos & about ½ mile South of the Southern Pacific RR tracks. Owned by Martin Wright (Sept 1926); and William Sparks (Jun 1927).
Mineralization is a replacement deposit with an irregular ore body in a NW-trending fault. The ore zone is 45.72 meters long, strikes NW and dips 60E. Massive hematite is exposed along a NW-trending fault. Iron oxides replace limestone breccia and fill fractures. Paleozoic rocks strike NW-ward in the area and dip toward the NE. They are in contact with late Tertiary rocks along a fault zone that strikes NW-ward & has a general NE-ward dip of about 60º. Paleozoic quartzite & limestone compose the footwall block. The footwall limestone is generally shattered adjacent to the fault zone & brecciated limestone is common within the fault zone. Near the workings, the fault zone is about 150 feet (46 meters) wide. The fault zone is comprised largely of a limestone-chert breccia.
The hematite ranges in color from black to orange, but is commonly deep brick red. It ranges in firmness from pulverulent to compact; the compact material being the most common. The hematite is massive and in places appears to have directly replaced the limestone breccia.
Workings include a vertical shaft about 100 feet deep, 2 short adits and several cuts and pits.
References
Bromfield, C.S. & Shride (1956), Mineral resources of the San Carlos Indian Reservation, Arizona, USGS Bull. 1027-N: 637, 638-639.
Harrer, C.M. (1964), Reconnaissance of Iron Resources in Arizona, US Bureau of Mines Information Circular 8236: 42.
MRDS database Dep. ID #10026836, MRDS ID #M000478; and Dep. ID #10161344, MAS ID #0040070428.
Mineral List
2 entries listed. 2 valid minerals.
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