Red Mountain Mining (ASX: RMX) is investigating four notable zones of anomalous REE’s in its latest analytical results from its major clay REE sampling programme at the Monjebup Project, located in the southwest region of Western Australia.
A total of 1129 clay samples have been received, with 91 samples greater than or equal to 600ppm TREO, peaking at 2,094ppm TREO.
Contouring of latest results revealed several open-ended areas of ≥600ppm TREO. This indicates presence of anomalous REE bearing clays across specific zones within the Monjebup project.
This latest phase of sampling successfully generated REE bearing clay targets around the anomalous orthogneisses with enriched REE where analytical results from initial phase infill sampling revealed source rocks with >1000ppm TREO levels in four locations and confirmed anomalous REE within soils in three locations.
The sampling programme targeted clays around these hard rock locations with 1x1km grids and 50m sample spacings where 1,478 sites were planned with 1119 sites sampled. A total of 12 sites were not sampled due to gneissic outcrop or culture and 32 sites were abandoned due to thick running sands and no clays and 315 left short due to time constraints.
A total of 1151 samples were analysed and included 10 duplicates, 11 blanks and 11 standards as part of the quality control. The samples were treated by lithium borate fusion for the REE suite of metals, and 91 samples produced TREO of 600pmm or higher with the highest reading at 2,094ppm TREO on the eastern edge of the Chillinup grid.
The Stockwell Road grid confirmed the anomalous trigger area, however the anomaly is constrained over a small area.
The next sampling programme will be targeted along the eastern margin of the Chillinup and Dump Road grids to test the extension of these anomalies. Additional samples are planned to be taken on grid extensions. Upon receipt of further analytical results, an aircore drilling and trenching programme will be initiated to test the thickness of the anomalous clays.