Lietzke

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; pyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale BS
Quadrangle map, 1:63,360-scale D-7
Latitude 59.873
Longitude -149.287
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is situated in a small cove northeast of Cape Resurrection within the SW1/4 of section 33, T. 3 S., R. 1 E., of the Seward Meridian. This is location 7 of Cobb and Tysdal (1980) and location 6 of Tysdal (1978). This location is accurate to within one quarter of a mile.

Geologic setting

Geologic description

Martin and others, (1915) examined hand samples from this occurrence and described them as quartz containing fragments of diabase, pyrite, and a little chalcopyrite. They then went on to speculate that this occurrence is similar to the Fairview and Iron Mask prospects (Martin and others, 1915). Tysdal and Case (1979) described the bedrock geology in this area as Cretaceous, pale to dark green aphyric to porphyritic pillow basalts with subordinate pillow breccia, tuff, and siltstones. Along the west shore of Resurrection Bay the pillows are right side up, dip 30 to 50 W, and the long axes of the pillows and pillow bifurcation plung westward down dip.
Geologic map unit (-149.289125951506, 59.872442175226)
Mineral deposit model Massive sulfide?
Age of mineralization Cretaceous.

Production and reserves

Indication of production None

Additional comments

Grant and Higgins (1909) did not visit this occurrence and their description is based on hand samples. Subsequent authors have reprinted their description.

References