Annual Report for EL 26687 Attack Creek for the period ending 23 October 2012

Abstract

This report describes exploration activities during the fourth year of tenure for EL 26687 (Attack Creek prospect). The tenement was granted on 24 October 2008 for a period of 6 years and currently comprises 72 blocks, as a total of 24 blocks were relinquished in November 2011. The Attack Creek prospect is a joint venture between Minemakers Australia Pty Ltd (MAPL) and Geotech International Pty Ltd. Exploration is aimed at the discovery of economic phosphate deposits proximal to the Alice Springs-Darwin railway. Such deposits are known to occur in shallow marginal marine sediments at the western edge of the Georgina Basin, similar to MAPL's Wonarah project located approximately 200km to the east-southeast. The prospect is 80km east-northeast of Tennant Creek and 30km east of Stuart Highway and lies on the 1:250,000 HELEN SPRINGS SE53-11 and the 1:100,000 BRUNCHILLY 5760 map sheets. Land use is dominated by cattle grazing over generally flat to undulating land with elevations between 240-280m. The geology in the immediate area consists of Palaeoproterozoic Tomkinson Creek Group, a dominantly arenaceous sequence, particularly in the basal portions, with siltstone and shale more important in the upper portions. This stratigraphy is overlain by undeformed Middle Cambrian sedimentary rocks. Early Cambrian lithologies are represented by the Helen Springs Volcanics that consist of amygdaloidal tholeiitic basalt and a basal sandstone unit. The Middle Cambrian Gum Ridge Formation was deposited in shallow shelf epicontinental seas subject to episodic peritidal influence. Lithologies consist principally of limestone and associated phosphorite units. A brief reconnaissance of existing tracks was completed to facilitate planning of a proposed RC drill program.