The Delta property lies within a regionally extensive package of Devonian to Mississippian age metasedimentary and volcanic rocks referred to as the Yukon Tanana Terrane. The Yukon-Tanana Terrane forms a major basement unit in east-central Alaska and extends in an east-southeast trending arc across Yukon into northern British Columbia. Massive sulphide mineral occurrences have been discovered in several locations in the Alaskan portion of the Terrane.
Massive sulphide deposits and occurrences at Delta are clustered within at least three separate stratigraphic horizons which trend southeast to northwest across the property. These include the extensive Upper Lagoon and Lower Lagoon Series, which have strike length of approximately 15 km; and the more localized Drum Series rocks. A 20-km long, thrust repeated section of the Lagoon Series, which outcrops about 5 km southwest of the main Lagoon trend, also hosts sulphide mineralization.
Since an initial discovery was made in 1976, exploration has investigated at least 40 occurrences of massive sulphide mineralization in the region. During these investigations some 141 holes, totalling approximately 23,200 m, were drilled at 24 occurrences and targets on the current Delta property.
An initial estimate of the mineral resources was completed in 2006.
The potential at Delta is excellent, encompassing both the opportunity to better define and expand the numerous known deposits and occurrences, and to make new discoveries in the extensive and underexplored main host-horizons.
