Combined annual report for year ending December 1983.

Abstract

Exploration Licences 4021 and 4022 are located in the Howley area and are operated by Northern Gold NL. EL4021 covers the northern extension of the Howley gold line and the old workings of the Bridge Creek area. Three mineral claims cover the majority of these workings and negotiations are underway to secure these leases. Typical rock units of the Koolpin, Gerowie, Tuff, Mount Bonnie and Burrell Creek formations occur within EL4021, and the area has potential for economic gold mineralisation associated with the Koolpin formation and the Howley Anticline. There is a possibility that the mineralised horizons of the Cosmopolitan and Metropolitan Howley re-occur in this licence. Geological mapping has indicated 500,000m3 of alluvials with an average depth of 2m. A geophysical survey using the RRMIP technique was carried out over part of EL 4021 and the preliminary results have located graphitic horizons within the Koolpin and Gerowie Tuff formations. EL 4022 occurs to the east of the Howley Line and contains sediments and volcanics of the Mount Bonnie and Burrell Creek formations. The licence holds potential for gold mineralisation associated with the alluvials in channels draining the Howley Line and within the bif units of the Mt. Bonnie formation. To date only limited work has been conducted on this EL. In the 1984 seasons, the Bridge Creek area will be extensively explored using corteaning and percussion drilling. A shallow auger drilling programme will be carried out over the alluvials on EL4022.