Marmota is excited to announce the identification of new high priority drill targets for additional uranium mineralisation at its 100% owned Junction Dam Uranium deposit immediately adjacent to the Boss Honeymoon tenement.
These new targets represent the first results of the new stratigraphic and mineralisation review that is progressing rapidly thanks to the efforts of our geological team with recently engaged uranium specialist
Technical Details (Saffron zone) The Saffron Uranium Deposit is located within a south-to-north trending section of the Yarramba Palaeovalley. Fig. 4 illustrates a 'west to east' trending stratigraphic cross-section through the middle of the Saffron Uranium Deposit from A - A'. The basement rocks consist of Willyama Basement comprising mainly of chlorite schist, sandstone as well as albite altered igneous intrusions. The base of the Yarramba Palaeovalley was filled locally with up to 15 metres of Eyre Formation basal sands in the lowest depressions within the basement. High energy paleochannels originating from the south then started to erode through the basal sands and Willyama Basement. Stratigraphic interpretation has identified four north-east trending palaeochannels as well as two south-tonorth trending palaeochannels entering the Saffron Uranium Deposit. The palaeochannels are approximately 20 metres wide and up to 30 metres deep where they have eroded through the underlying units. The palaeochannels have well developed flood plains up to 200 metres wide where overbank sediments including sand and gravel has been dispersed across the Saffron region. The widest sections of floodplain are located on the inside of palaeochannel bends and this is also where the highest grades of uranium have been identified. All six palaeochannels identified are uranium-bearing. Most of the uranium seen across the Saffron region is located in the floodplains on the sides of the palaeochannels where disseminated pyrite has been commonly observed which is acting as the reductant for uranium to precipitate. This can be seen on Fig. 2 where most of the peak uranium grades occur within close proximity to the edges of all palaeochannel floodplains. All six palaeochannels identified are open. Combined with EM and gravity images, there are large regions within the Yarramba Palaeovalley where further uranium mineralisation could potentially be identified. In the Saffron area, a total of four high priority drill targets have been identified as well as an area of interest where only two holes have been drilled to date and where the geophysical images suggest that palaeochannels as well as uranium mineralisation have to potential to also exist. The new stratigraphic model will enable Marmota to target high-grade uranium mineralisation both within the current resource area and near resource exploration targets, as well as targets including the Bridget Prospect to the north and the Yolanda Prospect to the south
Marmota chairman, Dr
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