Cosmos Exploration (ASX: C1X) has identified a strong 1000m by 350m concentric Ni-Cr-Cu-PGE anomaly at the Dottyback Prospect at its 100% owned Byro East Ni-Cu-PGE Project in Western Australia
The promising target was contained in the first assay results from the maiden December 2021 multi-element soil survey. The programme covered 37 square km of prospective mafic/ultramafic trends at Byro East.
Analytical results received to date have highlighted a coherent and concentric Ni-Cr-PGE and Cu anomaly over an area 1000m in the strike and up to 350m in width.
The coincident Ni-Cu-Cr-PGE geochemical anomaly features peak values up to 2250 ppm Ni, 1840 ppm Cr, 23 ppb (Pt+Pd) with semi coincident Cu ranging from 50ppm to 147 ppm.
These results are highly encouraging and consistent with underlying mafic/ultramafic lithologies, which are host rocks for magmatic Ni-Cu-PGE sulphide deposits
“While patiently waiting for the first of the assays to be returned from last year’s soil sampling programme, we have been actively progressing both the Byro East project and the Orange East Project,” Executive Chairman, Jeremy Robinson, said.
“These results are a very good start and confirm our belief in the region to host world-class Ni-Cu-PGE deposits. These results are expected to be the first of many across both our projects in the coming months.”
The geochemical anomaly is coincident with a magnetic high “bulls-eye”, which is likely to represent an underlying serpentinised ultramafic unit. Whole-rock assays returned from outcropping geology in the area support an ultramafic protolith with assays up to 37.0% MgO, 2660 ppm Ni and 3440 ppm.
The area’s mapped mafic/ultramafic lithologies are interpreted to be intrusive to the surrounding granitic gneiss and metasediments, with mapped units appearing discordant to the regional gneissic foliation.
The positive geochemical results received to date from less than 5 % of the total sampled are encouraging, with PGE anomalism up to 10-15 times background.
Cosmos anticipates that the +1500 pending assays will contain further coherent Ni-Cu-PGE anomalies providing valuable guidance for the May/June 2022 airborne electromagnetic survey (AEM).
Background – Byro East Project
Byro East is a greenfields project and one of the most extensive under-explored landholdings not held by Chalice Mining Ltd within the West Yilgarn Ni-Cu-PGE province, with a substantial land holding of over >1,600 sq. km, prospective for intrusion-related Ni-Cu-Co-Au-PGE mineralisation.
The discovery of the Gonneville (Julimar) PGE-Ni-Cu-Co-Au deposit by Chalice in March 2020 has demonstrated that the western margin of the Yilgarn craton is highly prospective for intrusion-related Ni-Cu-PGE deposits and can host large >10 Moz (Pt+Pd+Au) tier 1 deposits.
For further information please visit: https://www.cosmosx.com.au/
