HIGHLIGHTS
- Located in a globally significant district of the Pine Creek Orogen – Australia’s top region for economic unconformity-style mineral systems
- Evidence of surficial radiometric anomalies mapped throughout tenure
- Mapped unconformity contact with overlying Kombolgie Sandstone Collaborative geophysical program with NTGS
Overview
The Mount Douglas project is located within the Rum Jungle Uranium Field, approximately 50 kilometres east of the township of Adelaide River and approximately 130 kilometres southeast of Darwin in Northern Territory.
The project consists of three granted exploration licences EL 31451 (Mount Douglas), EL 33075 (Ban Ban Springs) and EL 32038 (Mary River) and covers an area of 588 square kilometres.
Figure 1: Pirie Basin Project and nearby Uranium deposits
Geology
The Mount Douglas project is located on the eastern flank of the Rum Jungle Mineral Field (RJMF) which was the first major uranium mining and processing centre in Australia. There are several uranium mineral occurrences in the Mount Douglas region, most of which are interpreted to be unconformity-style mineralisation, and the principal mineralisation target in the project area.
The Mount Douglas project is situated within the Central Domain of the Pine Creek Orogen in the North Australian Craton. The project area contains a fault-bound outlier of Middle Proterozoic arenite, considered an equivalent of settings associated with unconformity-style uranium mineralisation elsewhere in the Pine Creek Orogen. The project area also features a 20-kilometre strike length of favourable geology (unconformity at the base of the Kombolgie Basal Conglomerate), uranium anomalism in surface samples and several areas of elevated radiometric responses that require further investigation.
Up to 1,089ppm U has been returned from surface sampling of a haematitic ironstone band in the area.
Exploration
Orpheus is applying four specific exploration targeting models in the exploration for uranium, as well as other commodities such as gold, tin, and base metals.
These models include:
- Unconformity-style uranium mineralisation associated with the Kombolgie Sandstone unconformity;
- Structurally-controlled mineralisation associated with fold hinges and faults within the Paleoproterozoic metasediments and around the margins of the Cullen Intrusive Complex;
- Mineralisation associated with contact thermal metamorphism around the margins of the Minglo Granite and Margaret Granite, the Minglo Granite particularly of interest for uranium; and lastly
- Mineralisation associated with specific geological formations regionally known to host uranium and/or gold deposits.
Exploration activities currently include systematically ground-truthing radiometric and surface anomalies as well as conducting prospect-scale geological mapping and detailed geochemical programs. Orpheus is also planning a program of trenching and follow-up diamond or RC drilling to properly test the uranium grades at several of the project’s more advanced prospects.
OUR PORTFOLIO
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