Unnamed (south end of Inner IIiasik Island)

Occurrence, Inactive

Commodities and mineralogy

Ore minerals pyrite

Geographic location

Quadrangle map, 1:250,000-scale PM
Quadrangle map, 1:63,360-scale A-6
Latitude 55.04
Longitude -161.937
Nearby scientific data Find additional scientific data near this location
Location and accuracy This site is located on the south end of Inner IIiasik Island (Christie, 1974, color anomaly 68). The location is accurate.

Geologic setting

Geologic description

This site is a large color anomaly that extends approximately 5,000 feet north-south and 1,000 to 2,000 feet east-west. The map site is at the south end of the anomaly. The anomaly marks altered, pyrite-bearing, diorite, volcanic, and epiclastic rocks (Christie, 1974) mapped as Miocene volcanic rocks (Wilson and others, 1995). The anomaly is cut off to the east by the sea; some of the system is probably under water.
Geologic map unit (-161.938995755415, 55.0391389495634)
Age of mineralization Miocene or younger.
Alteration of deposit The host rocks contain epidote, chlorite, and clay.

Production and reserves

Workings or exploration The Aleut-Quintana-Duval joint venture briefly examined the site in 1974 (Christie, 1974).
Indication of production None

Additional comments

This site is located on land selected by the Aleut Corporation.


MRDS Number 10308079


Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps.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 S.H. Pilcher
Last report date 2/10/2001