|Quadrangle map, 1:250,000-scale||FP|
|Quadrangle map, 1:63,360-scale||D-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Approximate location is on the Alaska Peninsula side of Isanotski Strait, west of Sentinal Peak. Anomaly no. 48 of Christie (1974) and no. 4, of MacKevett and Holloway (1977, p. 11).|
Geologic descriptionChristie (1974) briefly examined a 4,000 ft (1.2 km) by 3,000 ft (900 m) color anomaly developed in a basalt-andesite volcanic sequence. Rocks are generally unaltered except where pyrite content is high (about 5 percent); the typical pyrite content in the anomaly is 0.1 to 1 percent. The altered rock forms narrow (+/- 20 ft, 6 m) linear zones. Fracture-controlled pyrite apparently is confined to these altered zones. No mention is made of quartz veining. Minor quartz diorite porphyry and granodiorite were seen in float in the creek on the east side of the ridge but no intrusive rocks were seen in outcrop.
|Geologic map unit||(-163.35198893271, 54.8321135064206)|
|Mineral deposit model||Epithermal gold vein?|
|Mineral deposit model number||25?|
|Age of mineralization||Miocene or younger|
|Alteration of deposit||Not described.|
|Workings or exploration||Brief reconnaissance geologic mapping and collection of a few soil and silt samples. Copper, molybdenum, zinc, and gold values were not anomalous; silver ranged between 1.3 and 1.9 ppm.|
|Indication of production||None|
Additional commentsAltered area examined by W.H. White (USGS, 1990); no significant mineralization found.
Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)
|Reporters||G.D. DuBois; F.H. Wilson|
|Last report date||5/6/1994|