EL 22786 Attack Creek annual exploration report for period ending 25/03/2007

Abstract

OM (Manganese) Ltd (OMM) explores for manganese and base-metals within three project areas, as part of the Bootu Creek Operation, over sedimentary basins within the Ashburton Province of the Tennant Inlier in the Northern Territory. The Attack Creek Project is located approximately 73 km north of Tennant Creek along the Stuart Highway and about 62 km south-southwest of the Bootu Creek Project area. A thorough multidisciplinary exploration study is being undertaken over exploration license EL 22786 held by OMM within the area of interest. The Attack Creek Project area was previously recognised as prospective for Bootu Creek Mn and base metals mineralisation style as units of the Attack Creek Formation and specifically the contact with the lower units of the Bootu Creek Formation are exposed within a faulted syncline. However, as only Mn staining is evident within the area compared with obvious massive Mn outcrops within the Bootu Creek Project area, only limited outcrop mapping has been conducted over the Project area to date. In November 2004 Arnhem Exploration conducted a mapping and sampling survey over the Project area identifying several Fe-rich occurrences with limited associated Mn staining occurrences. Using maps derived from ASTER enhanced images the one Mn mineralised outcrop was successfully identified, adding 3 new disseminated Mn Mineralised zones and identifying the highly prospective contact between the basal unit of the Bootu Creek Formation and the dolomitic Attack Creek Formation. The area is regarded as under explored but still highly prospective due to evidence of Mn mineralisation within favourable lithology.