Miramar Resources Limited (ASX:M2R) has substantially increased the footprint of the Marylebone prospect at its 80% owned Gidji JV Project in the Eastern Goldfields region of Western Australia with a positive aircore drilling programme.
The new results from Marylebone include multiple holes with 4.0m composite samples >1.0g/t Au which extend the Marylebone target by approximately 800m to the northwest.
The new results increase the total strike length of the Marylebone prospect to almost two km, however the prospect remains open along strike to the northwest and southeast within Miramar’s existing tenement applications and is virtually untested at depth below about 60m.
Significant new aircore results include:
- GJAC303 – 3m @ 1.00g/t Au from 52m to EOH
- GJAC304 – 4m @ 1.22g/t Au from 48m
- GJAC310 – 4m @ 1.46g/t Au from 40m
- GJAC315 – 4m @ 1.47g/t Au from 44m
- GJAC318 – 4m @ 1.02g/t Au from 52m
- GJAC328 – 4m @ 1.40g/t Au from 52m
- GJAC341 – 4m @ 1.33g/t Au from 52m
The Gidji Project is located 15km north of Kalgoorlie and, despite being surrounded by several existing gold mining and/or processing facilities, has seen limited bedrock testing and has minimal historic drilling >100m.
The Marylebone prospect is currently the largest and highest priority of four targets outlined by Miramar since commencing exploration at Gidji in December 2020 and has many similarities to the Paddington deposit approximately 10km along strike to the northwest.
Executive Chairman, Allan Kelly, said the phase 3 aircore programme aimed to cover the Marylebone prospect at a regular drill hole spacing of 150-200m x 50m using pre-existing historical drill lines.
He said that the company had not yet outlined the full extent of the Marylebone prospect.
Our systematic aircore drilling continues to grow Marylebone, with the footprint now stretching over almost 2 kilometres and the tenor of the results apparently increasing towards the northwest,” Mr Kelly said.
“The new results are associated with NW trending mafic and/or ultramafic units within the Boorara Shear Zone crosscut by N-S trending structures which is similar to that seen at Paddington,” he added.
“The significant gold results occur at the top of weathered mafic/ultramafic basement rocks and are associated with anomalous Ag indicating a probable association with bedrock gold mineralisation,” he said.
The is waiting on results from further aircore holes recently completed including on the eastern and south-eastern margins of the Marylebone prospect. It plans to continue refining the extent of the Marylebone prospect with further aircore drilling followed by deeper RC drilling.
Mr said the RC drilling had provided valuable information about the basement geology of the Marylebone prospect.
“We took the opportunity to complete these initial six RC holes to have a look at the underlying geology for the first time and hoped we might be lucky in also locating bedrock gold mineralisation,” Mr Kelly said.
“The three successful RC holes only tested a small portion of the Marylebone prospect and we were unsure about the dip of the most prospective geology and/or structures, so it is probable some of the holes were not drilled with an optimal azimuth,” he added.
“Given the latest aircore results, which have substantially grown the size of the Marylebone prospect, we remain very excited about the opportunity for a new gold discovery at Gidji,” Mr Kelly said.
