MinRex Resources Limited (ASX: MRR) has completed its second geological evaluation and sampling programme of 2019, on the five East Pilbara tenements that the company holds a 70% interest in.
The work completed in the current programme focussed on following up on the earlier very encouraging rock sampling results at the two Bamboo Creek project exploration licences with detailed rock sampling and geological mapping to better understand the gold and base metals prospects now identified and continue the search for as yet undiscovered mineralised systems.
In all 180 samples were collected from the larger lease (E45/4560) and 50 samples from the smaller lease (E45/4853) for a grand total of 230 samples.
MinRex Resources Executive Director Simon Durack said the Bamboo Creek project area, located near Marble Bar, is prospective for gold mineralisation of the Bamboo Creek style.
The Bamboo Creek goldfield lies 5-10km to the north and east, and along strike within the Warrawoona Group Greenstones that occur in the northern portion of the exploration licence.
In the current exploration programme a total of 100 rock samples were collected from the along strike stratigraphy of the Bamboo Creek goldfield, within the MinRex exploration licence.
Mr Durack said there is also potential for felsic porphyry-hosted base metal and molybdenum mineralisation of the Spinifex Ridge (Coppin Gap) type, with the Spinifex Ridge Mo-Cu deposit being just 2km to the west of the northern portion of the exploration licence, occurring within a porphyry intrusion into the Warrawoona Group Greenstone sequence.
In the current exploration programme a total of 40 rock samples were collected from a prominent fluorite- carbonate-quartz vein system, with anomalous copper values, at the BC07 prospect that may be related to the nearby felsic porphyry-hosted base metal and molybdenum mineralisation.
The company believes there is also potential for chrome-nickel mineralization in ultramafic bodies, as at Nobb Hill, and in the current exploration programme a total of 40 rock samples were collected from within and close to the Nobb Hill prospect. There is also potential for anomalism in other, as yet unidentified, mineralization styles within the Bamboo Creek project area.
During this latest exploration programme, some further work was also completed at the other three project areas, including the gold and base metal prospects at the Daltons project and the two Marble Bar projects which both contain old gold mining workings and associated gold anomalism.
The assay results for the 230 samples collected in the current exploration program are expected in late October and these will be released, along with the locational data, maps and plans, as soon as possible after their receipt.
Mr Durack said the next phase of field work in the East Pilbara will again incorporate visits to all four of the project areas in the Marble Bar area. Further detailed rock sampling, soil sampling in colluvium and soil covered areas and detailed geological mapping will be utilised to better understand these complex gold, base metal and poly-metallic mineralised systems.