Redcastle Resources Limited (ASX: RC1) has received the results of the recently completed RC drilling programme at its wholly-owned QA prospect. A total of 37 holes for 1,937m were completed. The top 5m was not assayed due to surface rights belonging to prospectors. All assay results have been received from the laboratory for all submitted samples which consisted of 529 x 1m samples and 318 composite samples (mainly 4m lengths).
A total of 228m x 1m samples from the originally submitted composite samples (where composite assay values were reported above a nominated mineralized grade of 0.2 – 0.4g/t Au depending on size of composite and location) have been recently submitted to the laboratory for assay.
Results include:
• Gold intersections in the upper 20m which increase in grade with depth and plunge to the south-east
• Drilling confirms mineralization continuity on section and with a strike extent of 200m
• Mineralization is a combination of subvertical veining and horizontal structure
• Preliminary metallurgical testwork (using a concentrated leach method) reports a subsample from the 2022 high grade sample RRC151 at 115m as having a metallurgical recovery of 92% for gold
• 20m x 20m RC drilling programme down to a depth of 45m vertical with 2 holes reaching 50m vertical, with key assay results (Au) including:
o 1m @27.6g/t from 44m in RRC178
o 3m @12.51g/t from 17m including 1m @25.7g/t from 17m in RRC172
o 1m @7.75g/t from 22m in RRC173 o 1m @7.64g/t from 17m in RRC167
o 1m @6.00g/t from 32m in RRC170 o 1m @4.21g/t from 35m in RRC174
o 1m @4.04g/t from 24m in RRC169
o 1m @3.75g/t from 13m in RRC187 o 2m @3.38g/t from 12m including 1m @4.86g/t from 12m in RRC165
o 4m @3.32g/t from 46m in RRC181
o 3m @2.85g/t from 21m in RRC160
Geological observations made during the drilling programme of the historical workings and logging indicate that in addition to the subvertical, east-west striking veins seen at surface, flat north dipping structures plunging to the south-east also appear to be a major mineralized component. A geological interpretation together with a JORC Resource will be completed on receipt of the 228 x 1m assays. This structural interpretation will ultimately require substantiation for deeper mineralization through diamond drilling.
Diamond drilling will also provide further metallurgical and geotechnical information for future mineral resource estimation work. The company will consider the opportunity for diamond drilling in the first quarter of 2024.
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