Buchanan, Partial relinquishment report for the period 15 January 2009 to 14 January 2013, Chilling Project EL 22738

Abstract

This report covers exploration activities carried out on the recently relinquished blocks of EL 22738 for the period 15 January 2009 to 14 January 2013. EL 22738 (Buchanan) is one of four remaining exploration licences that comprise Crossland's Chilling Project, located in the Daly River region south of Darwin. Crossland has been exploring the region for uranium and other commodities since 2004 utilising the concepts of target identification based on the proprietary methods of Paradigm Geoscience Pty Ltd (now Global Geoscience Pty Ltd). The initial target commodity on the licence was uranium. The geological setting consisting of hydrothermally altered granite intruding the lower proterozoic, and the presence of the mid-proterozoic unconformity combined to form a highly prospective setting. The first year of exploration was aimed at assessing the uranium potential, however following a regional mapping and sampling programme it became apparent that a favourable setting for base metals also existed. Base metal anomalies related to carbonate derived breccias occur along the margin of a fault-bounded basin, termed the Buchanan sub-basin. This feature became the focus of Crossland's exploration efforts. In relation to on-ground exploration and related activities, Crossland completed the following work on the relinquished blocks: Initial desktop studies and compilation of historical data; Airborne magnetics and radiometrics; Ground reconnaissance in the southwestern and eastern blocks; and Collection of two stream sediment samples. There were no results of interest derived from the activities carried out in the relinquished areas. Thick mid-proterozoic sandstone obscures basement rocks along the eastern boundary of the licence. Diamond drilling in 2011 showed the sandstone sequence to be at least 200 metres thick. To the west, a greater variety of rock types exist, including basement lithologies, however these proved to be entirely unprospective. A combination of rugged escarpment country and flat topped plateau made this country difficult to access.