19 Nov Bushranger assay results and drilling update
RNS Number : 9967S
Xtract Resources Plc
(“Xtract” or the “Company”)
Bushranger Project Assay Results and Phase 2 Drilling Update
The Board of Xtract Resources Plc (“Xtract” or the “Company”) is pleased to report on independent laboratory assays for drill hole BRDD-021-016 and two further holes completed on the Phase 2 diamond drilling programme at the Bushranger copper-gold exploration project.
· Drill hole BRDD-21-016 has returned promising intersections of copper and gold mineralisation near the southern limits of the currently estimated Racecourse Inferred Mineral Resource
· Assay results include 14m at 0.39% CuEq from 250m depth within a wider zone of 142m at 0.21% CuEq from 170m (details in Table 1 below)
· Elevated gold values (40m @ 0.23g/t Au from 596m) below the main Racecourse porphyry body, along with a coincident IP anomaly, suggest that a secondary porphyry body may occur at depth below the main Central Porphyry Intrusion
· Drillhole BRDD-021-026 tested the extension of mineralisation at depth on the western side of the central part of the Racecourse deposit. Based on preliminary logging and subject to laboratory assays, variable strength chalcopyrite mineralisation occurs over a 282.5m interval from 367m downhole
· Drillhole BRDD-021-027 was the second hole of the Phase 2 drilling programme drilled with a westerly azimuth and is interpreted to have passed close to the high-grade “crown” at the top of the intrusion. Based on preliminary logging and subject to laboratory assays, the hole intersected a 371m down hole interval of variable strength visible copper mineralisation from 97m depth
Colin Bird, Executive Chairman said: “The results of hole BRDD-21-016 have again showed good runs of copper grade, with mineralisation over a 142m interval, of interest was a secondary zone of gold intercepted at 596m, which graded up to 8m at 0.66 g/t Au. The mineralisation in hole 16 was intersected at depth and below the crown, although it appears that gold manifests at deeper levels. The recent drilling results suggest that the copper mineralisation extends further south than indicated by the mineral resource model and the results give us increased encouragement for the potential of the orebody to progress further south, or indeed, new porphyry systems to be discovered.”
Phase Two Bushranger Prospect Assay Results – Drill Hole BRDD-21-016
Table 1 – Assay Results from Drill Hole BRDD-21-016*
|Hole ID||From (m)||To (m)||Interval (m)||Cu (%)||Au (g/t)||Ag (g/t)||CuEq (%)|
*Assays undertaken by Bureau Veritas Minerals Pty. Ltd. Laboratory, Adelaide, Australia
**CuEq Formula: CuEq = Cu% + 0.5884xAu (g/t) + 0.0078xAg (g/t)
Drillhole BRDD-021-016 was designed test the extension of mineralisation in the modelled Racecourse deposit towards the south and was drilled at an inclination of -70 degrees towards the east (refer to RNS dated 14 September 2021). Assay results have confirmed an overall interval of 142m grading at 0.21% CuEq from 170m downhole, at today’s metal prices, and, within the larger interval, the copper values grade up to 14m at 0.39% CuEq from 250m downhole.
A relatively broad zone of elevated gold was also intersected at depth, including a 40m downhole interval which graded 0.23g/t Au and included 8m at 0.66 g/t Au from 628m downhole. This zone occurs on the eastern side of the Central Racecourse mineralised porphyry body and has not been significantly drill tested to date. The area is proximal to an induced polarisation resistivity low anomaly and could signify that a second mineralised porphyry body is close by at depth. Further drilling to test this zone has been planned as part of the second stage of the Phase 2 drilling programme (Refer to RNS dated 13 October 2021).
Bushranger Phase Two Drilling Update – Drill Holes BRDD-21-026 & BRDD-21-027
Drill hole BRDD-21-026 was drilled at an inclination of -60 degrees towards the east and was completed at a final depth of 678.4m. The hole was drilled into the side of the Central porphyry body and it was designed to test the extension of the mineralisation at depth in the main central zone of the Racecourse porphyry deposit. Based on preliminary logging and subject to laboratory assays, visible chalcopyrite was first logged from 177m downhole, with a 282.5m downhole interval of variable strength copper mineralisation occurring from 367m downhole.
Drill hole BRDD-021-027 was the second drillhole of the Phase 2 programme drilled with a westerly azimuth. The hole was designed to test the high-grade “crown” at the top of the Racecourse porphyry system and the along strike continuation of the Racecourse deposit further to the south. The hole was drilled at an inclination of -80 degrees and completed at a final depth of 580m. Based on preliminary logging and subject to laboratory assays a 371m down hole interval of variable strength visible copper mineralisation was intersected from 97m downhole. This is interpreted to extend the mineralisation drilled in hole BRDD-021-024 by 300m further to the southeast (refer to RNS 9th November 2021).
Further holes have been planned to test the along-strike continuation of the Racecourse porphyry system further towards the south and these holes are currently in progress.
Bushranger Prospect Drill Hole Location Plan
Drill Hole BRDD-21-013 and BRDD-21-016 Cross Section
Racecourse Prospect Summary of Mineralised Intersections
Further information is available from the Company’s website which details the company’s project portfolio as well as a copy of this announcement: www.xtractresources.com
The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 as it forms part of UK Domestic Law by virtue of the European Union (Withdrawal) Act 2018 (“UK MAR”).
The person who arranged for the release of this announcement on behalf of the Company was Colin Bird, Director.
|Xtract Resources Plc||Colin Bird,
|+44 (0)20 3416 6471|
|Beaumont Cornish Limited
Nominated Adviser and Joint Broker
|+44 (0)207628 3369|
Novum Securities Limited
+44 (0)207 399 9427
Information in this announcement relating to the exploration works has been reviewed by Edward (Ed) Slowey, BSc, PGeo, a consultant to Xtract. Mr Slowey is a graduate geologist with more than 40 years’ relevant experience in mineral exploration and mining, a founder member of the Institute of Geologists of Ireland and is a Qualified Person under the AIM rules. Mr Slowey has reviewed and approved the geological content of this announcement.
In accordance with AIM Note for Mining and Oil & Gas Companies, June 2009 (“Guidance Note”), Colin Bird, CC.ENG, FIMMM, South African and UK Certified Mine Manager and Director of Xtract Resources plc, with more than 40 years’ experience mainly in hard rock mining, is the qualified person as defined in the Guidance Note of the London Stock Exchange, who has reviewed the technical information contained in this press release.
The following is a summary of technical terms:
|“CuEq”||Copper equivalent grade, calculated using assumed metal prices for copper, gold and other metals|
|“Induced Polarisation (IP)”||A method of ground geophysical surveying which employs the passing of an electrical current into the ground to test for indications of conductive metallic sulphides
|“Inferred Mineral Resource”||That part of a Mineral Resource for which quantity and grade (or quality) are estimated on the basis of limited geological evidence and sampling. Geological evidence is sufficient to imply but not verify geological and grade (or quality) continuity. It is based on exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes|
|“mineralisation”||process of formation and concentration of elements and their chemical compounds within a mass or body of rock|
|“porphyry”||a deposit of disseminated copper minerals in or around a large body of intrusive rock|