Duluth Metals Limited - The Duluth Complex - Deposits situated in the Duluth Complex


	Projects Overview The Nokomis Deposit Project Summary The Duluth Complex	Deposits situated in the Duluth Complex According to the Minnesota Department of Natural Resources, from 1951 to the present, more than 1,900 diamond drill holes totaling over more than 230,000 m (754,591 ft) have been drilled to explore the western margin and base of the Duluth Complex for copper and nickel deposits. This work has outlined at least nine disseminated copper-nickel deposits, over a 22 mi. (35 km) strike-length, which have a combined estimated resource of 3.63 billion tonnes (4.4 billion tons) grading 0.66% Cu and 0.20% Ni (unclassified historical resource, not 43-101 compliant). There is extensive interest in the Duluth Complex because of the massive volume of contained copper and nickel, its platinum-palladium-gold content, advances in metallurgical processing, increases in commodity prices, and its North American location. Of particular interest are the changes in refining technology have made the economic and environmental sound extraction of the metals possible from Duluth Complex polymetallic ores by use of clean hydrometallurgical refining technologies. The two major technologies currently proposed to extract the material economically are the PLATSOL^TM process developed at SGS Lakefield, extracting base metals and PGM /precious metals, and the CESL process developed by Teck Cominco, extracting base metals.