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The wholly-owned Norseman project contains a cobalt-nickel JORC resource and additional prospects with potential for copper, nickel and cobalt mineralisation. Galileo tenure at Norseman comprises exploration and prospecting licenses covering a total area of 306 km2.
The project is located only 10km from the Western Australian town of Norseman with excellent infrastructure, including gas, water and electricity facilities, as well as access to road and rail. The deep water Port of Esperance is two hours south of Norseman along the Coolgardie-Esperance highway.
Galileo has been involved with the Norseman project since 2006 as a private company and is now accelerating its exploration and development activities as a public company, targeting Volcanogenic Massive Sulphide (VMS) copper, nickel sulphide and lateritic cobalt-nickel mineralisation.
The Subzero prospect has a recorded history of copper prospecting, with small scale production registered in 1953, when approximately 13 tonnes of ore was extracted at an average grade of 8.36% copper.
Work conducted by Barrier Exploration in 1971 identified layers of prospective volcanic rocks including tuff and agglomerate in diamond core however no additional work has been completed to this date.
The area drilled by Barrier contains a volcano-sedimentary rock unit covered by shallow alluvial material which prevents traditional prospecting techniques. The alluvial cover thins further to the east to present outcropping copper mineralisation. Galileo has identified high grade copper oxide samples with up to 19.9% copper at surface from this eastern location.
The company intends to combine its recently completed detailed magnetic survey data with historic drilling to develop new targets to test for VMS copper resources.
Exploration potential exists for nickel sulphides along the western margin of the Mt Thirsty Sill.
Drilling in 2010 by the Barra/Conico JV on the western margin of the Mt Thirsty Sill (500 metres north along strike of Galileo’s tenements) identified nickel sulphides at the base of a komatiite flow. Grades up to 6m @ 3.4% and 2m @ 5.9% nickel were intersected. The corresponding stratigraphy in the Galileo ground has never been tested and potential therefore exists for a similar style of nickel sulphide mineralisation on the Galileo ground.
A Moving Loop Electro Magnetic (MLEM) survey was undertaken for Galileo in 2013 aimed at identifying conductors associated with nickel sulphides within the komatiite sequence. This survey (over 7.1 km north-south) covered half of the prospective strike length held by Galileo. Four drill targets possibly related to sulphides were delineated within the Galileo tenements, which are yet to be tested by drilling.
The Norseman project is intruded by two major mafic-ultramafic differentiated sills, the Mt Thirsty Sill and the Mission Sill, which are prospective for additional cobalt resources.
Cobalt mineralisation occurs as an oxidised cobalt-nickel-manganese blanket overlying the Mt Thirsty and Mission Sills. The deposits are formed by the in situ, lateritic weathering of olivine-rich peridotite rocks. Mineral Resources for cobalt have been estimated for Mt Thirsty and Mission Sill and are reported here.
Exploration potential at Norseman is supplemented by lithium-caesium-tantalum (LCT) bearing pegmatites with historic tin-tantalum prospecting pits at the Woodcutters prospect. Numerous additional LCT pegmatites have been mapped and sampled around Woodcutters and further south presenting a large number of targets for further drill testing.