Annual report on EL 26804 Birrindudu Project for the period 12 January 2012 to 11 January 2013

Abstract

In June 2012, representatives of IGO visited the Birrindudu Project in order to delineate the position of proposed RC drill holes planned to determine the source of both the Au anomalism at the Happy Jack Prospect and the Sn anomalism at the Birrindudu Tin Prospect. As part of this process, the original RAB holes drilled by Stockdale were located at the Happy Jack Prospect but no sample piles remained to be observed. However, known Au anomalism could be traced to the surface due to the presence of extensive outcrop, and, in all cases, appears to be associated with narrow quartz veins in lithic wackes and grits. Lithologies encountered comprise a series of poorly sorted siliclastics, mainly arenitic and gritty, that has been extensively intruded by a coarse grained granitoid - a typical contact aureole associated with granite intruding flat lying metasediments (roof pendant). A total of 9 rock chips samples were also collected, 3 of which returned anomalous Au values of 10.4ppm, 3ppm and 1ppm. No other elements were considered anomalous. These results and observations confirm that Au anomalism is, in fact, associated with narrow quartz veins. As a result, the decision was made that no further drilling was required at the Happy Jack Prospect. However, a detailed internal review has since lead to a new geological interpretation of the Birrindudu Project, which has re-highlighted its potential to host high grade, Tanami-style quartz vein Au mineralization.