E45/6949 & E45/6950 Expand Tenement Portfolio Close to Existing Manganese Mine

Nullagine Project

Great Dirt’s Nullagine Project (E45/6949 & E45/6950) tenements are situated ~50km north-east of Consolidated Minerals, Woodie Woodie manganese mine, located in the Shire of East Pilbara, Western Australia.

At a glance
  • Tenements E45/6949 and E45/6950 cover 68 and 29 blocks respectively (approximately 311km2), in the Pilbara mineral field (31 May 2024).
  • Great Dirt commenced a data compilation and review of historical exploration on its Nullagine Project. Historical rock chip sample assays returned up to 45.7% Mn (18 June 2024).
Historical Data Review Confirms 45.7% Mn at Nullagine Project

    Great Dirt compiled data and reviewed historical exploration work on its newly acquired Nullagine Project, approximately 50km northeast of Consolidated Mineral’s Woodie Woodie manganese mine.

    Tenements E45/6949 and E45/6950 are highly prospective for manganese, with historical rock chip samples returning assays of up to 45.7% Mn on E45/6949. Limited historical exploration has been completed which provides the Company with the potential for significant exploration upside.

    Tenements E45/6949 and E45/6950 include the stratigraphically significant Pinjian Chert and Carawine Dolomite, which are considered to be the main host rocks of the Woodie Woodie style of mineralisation. This, along with known manganese rich out-crops and coincident geophysical anomalies, indicate potential for manganese deposits in the area.

    Consolidated Minerals Pty Ltd (“ConsMin”) has a significant landholding prospective for manganese including the high-grade, open pit Woodie Woodie manganese mine. The Woodie Woodie operation comprises open-pit mining across several pits and a 1.6mtpa processing plant. Manganese ore has been mined at Woodie Woodie since the early 1950’s and was the first bulk commodity exported from Port Hedland 14 years before iron ore. Woodi Woodie has historically produced a high-grade manganese ore with a high manganese content, high manganese to iron ratio, low phosphorus and hard, competent nature. The ore is produced from high grade fault hosted deposits located on or near the unconformity between the Neoarchean Carawine Dolomite and the Paleoproterozoic Pinjian Chert breccia and sedimentary units of the overlying Manganese Group.