Santa Lucia Mine (Jupiter claim), Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA

A former underground Cu-Ag-Au mine located in the S½NE¼N½SE¼ sec. 32, T3S, R29E, 0.5 mile SW of the mouth of Garfield Gulch, 1.5 miles NW of Metcalf, on private land. Either of two adits in the SE corner of the NE quarter of sec. 32 (see BLM District sheet 837). The original claim of Santa Lucia overlapped by the Santa Isabella and Jupiter claims of the Stevens group. Discovered by Charles E. Stevens and Isaac Stevens in 1875. Produced 1907-1918. Owned by the Phelps Dodge Corp., Morenci Branch. Former operators included Baines and Valdez, and the Stevens Copper Co.

Mineralization is irregular ore shoots hosted in the Modoc Limestone and Morenci Shale. Ore control was NE-trending fissure veins. Ore concentration was mineralization along fissure veins and in irregular bodies along contacts of intrusive masses. Alteration was minor. Associated rock units are quartz monzonite and diorite.

Area structures include fissure veins in limestone and basal granite sequences and irregular bodies on or near contacts of intrusive masses. A porphyry dike is at or near the contact of basal granite and limestone sequences.

Tectonic component is the Coronado Massif surrounded by peripheral faults. The fault block to the eastof the massif is downthrown about 2000 feet, placing Carboniferous limestones at level of Chase Creek.

Developments on the Stevens claims W of Chase Creek and near Garfield Gulch consisted primarily of driving short tunnels to intersect relatively small ore shoots.

Mineral List

4 entries listed. 3 valid minerals.

References