|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 about 5 km south of False Pass community. Anomaly no. 49 of Christie (1974) and no. 2 of MacKevett and Holloway (1977, p. 11). Location description is poor; however, location apparently is southwest of Whirl Point on Unimak Island.|
Geologic descriptionChristie (1974) briefly examined a poorly defined color anomaly 2 mi (3.2 km) in diameter developed in andesitic volcanic flows, breccia, and tuff intruded by multiple diorite stocks(?). The diorite contact metamorphoses the volcanic rocks and pyrite is disseminated in both the diorite and the volcanic rocks. The diorite is pervasively propylitically altered.
|Geologic map unit||(-163.418688533923, 54.8208131568262)|
|Mineral deposit model||Epithermal gold vein|
|Mineral deposit model number||25|
|Age of mineralization||Miocene or younger|
|Alteration of deposit||Pervasive propylitic alteration of diorite within the color anomaly and local(?) silicification. Hydrothermal minerals reported include clay, chlorite, and epidote.|
|Workings or exploration||Brief reconnaissance geologic mapping and a few silt samples were collected. One sample had 0.01 ppm gold. Occurrence apparently has not been adequately examined for epithermal gold vein potential.|
|Indication of production||None|
Additional commentsQuartz veining is not mentioned by Christie (1974), but this does not mean it is absent, inasmuch as his focus was mainly on porphyry mineralization.
Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps.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|