GEMC:CC - Global Energy Metals Reports JV Partner Kingsrose Mining Identifies Strongly Conductive Zones in Geophysics at the Rana Nickel-Copper-Cobalt Project Norway
(TheNewswire)
Vancouver, BC - TheNewswire - July21, 2023 - Global EnergyMetals Corporation ( TSXV:GEMC ) ( OTC:GBLEF ) ( FSE:5GE1 ) (“Global Energy Metals”, the “Company” and/or“GEMC”) , a multi-jurisdictional,multi-commodity critical mineral exploration and development companyfocused on growth-oriented battery metal projects supporting theglobal transition to clean energy, is pleased to report that itsstrategic partner, Kingsrose MiningLimited (“Kingsrose”),has completed the acquisition and interpretation of ground basedelectromagnetic (EM) and magnetotelluric (SPARTAN MT) geophysicalsurveys at the Bruvann Mine area within the Råna Project, Norway(Figures 1 and 2). In addition, a ground-based MT survey at theRånbogen prospect and MobileMT survey over the entire Råna intrusivecomplex are now complete and results will be interpreted over thecoming weeks.
Highlights
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Strong apparent conductive bodies with the potentialfor massive sulphide mineralization have been identified from SPARTANMT and EM data in three localities proximal to the past-producingBruvann Mine (Figures 2 to 5):
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West-southwest and down plunge of mined-out massivesulphide mineralisation at Bruvann Mine (Target “Bruvann 01”)(Figure 3).
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West and down plunge of disseminated mineralisationwhich remains open at Bruvann Mine, as indicated by historical drillresults including 20.4 metres at 0.45 % Ni (BG-64-01), 18.3 metres at0.48 % Ni (bh-1144-02), 23.0 metres at 0.42 % Ni (bh-1143-02) and 11.4metres at 0.67 % Ni (BG-39-01) (Target “Bruvann 02”) (Figure4).
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Northeast of the Bruvann Mine located at the contactbetween country rock and gabbronorite intrusive, locally underlying alenticular peridotite dyke mapped at surface (Target “Bruvann 03”)(Figure 5).
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Drill testing of the targets is underway to investigatethe potential for massive sulphide nickel-copper-cobalt mineralisationassociated with the conductive bodies.
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An extension of the EM geophysical survey and downholeEM is expected to be conducted in late July 2023 to further define thetargets and provide additional confidence in future drilltargeting.
Andrew Tunningley, Kingsrose Head ofExploration, commented:
“ The initial geophysical results at Bruvannare highly encouraging in demonstrating the presence of previouslyunidentified, strongly conductive bodies proximal to the mined-outmineralisation. Our aim is to validate the geophysical interpretationwith drilling and follow up detailed geophysics and work towardsdiscovery of new zones of massive sulphide nickel-copper-cobaltmineralisation. ”
Fabian Baker, Kingsrose ManagingDirector, adds:
“ Following the MT and EM results reportedtoday, we are eagerly awaiting the final results and interpretationsfrom MT data at the Rånbogen prospect, as well as the MobileMT datawhich covers the entire Råna intrusion. Our systematic approach toexploration is designed to methodically explore the large andprospective landholding which Kingsrose has consolidated atRåna. ”
Discussion of Results
Kingsrose has completed ground based MT and EM surveysat the Bruvann Mine area, with the aim of modelling the local geologyand generating exploration targets associated with zones of elevatedconductivity which may represent massive sulphide mineralisation.Following is a discussion of the techniques employed, and aninterpretation of the results and targets generated.
Magnetotelluric Data
MT is an electromagnetic technique that mapsresistivity, to infer sub-surface geology and identify zones of lowresistivity (high conductivity) which may correspond with massivesulphide mineralisation. MT is a passive technique which uses naturalsources of electromagnetic fields such as lightning and solar flaresand is a highly portable technology, capable of detecting a largerange of frequencies, resulting in high quality data acquisition togreat depths. The MT survey at Bruvann was conducted using arelatively tight station spacing of 200 metres, with the aim ofmapping to at least 1000 metres below surface. A three-dimensionalmodel of resistivity was produced to aid interpretation of geology,structure and zones of potential massive sulphide mineralisation.Three zones of high conductivity have been observed in the Bruvann MTdata (Figure 2):
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Immediately south of the Bruvann Mine (Figure2).
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West and down plunge from the Bruvann Mine, 650 metresbelow surface (targets “Bruvann 01” and “Bruvann 02”) (Figures3 and 4).
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One kilometre northeast of the Bruvann Mine at thecontact between gneiss wall rock and peridotite intrusive rock, fromsurface and extending to over 1000 metres depth (“Bruvann 03”)(Figure 5).
Mined-out massive sulphide mineralisation occurred atthe gradient between very high and moderate conductivities (Figures 2and 3). The observation that massive sulphide mineralisation occurs atthe gradient between very high and moderate conductivities providesKingsrose with an important vector for targeting other zones ofmassive sulphide mineralisation. Peridotite, which is the main hostrock to high tenor nickel mineralisation, has been modelled fromlogging of historical drill holes and corresponds with the same MTgradient at the Bruvann Mine. The remainder of the Bruvann Mine occursas disseminated sulphide mineralisation which is not detectable by MTtechniques and does not appear as an anomaly in the MT data, howeverthe disseminated mineralisation is hosted predominantly withinperidotite.
Linear, steeply dipping zones of very high conductivityoccur in two areas: south of the Bruvann Mine trending east to west,and north of the Bruvann Mine trending northeast (Figure 2). Theselinear zones are inferred to represent graphitic horizons within thegneiss wall rock and are lower priority targets. Graphitic zones dooccur proximal to massive sulphide mineralisation at Bruvann, andclasts of graphite are commonly observed within the massive sulphide,therefore the presence of graphitic horizons proximal to the intrusivecontact are considered a locally important control on mineralisation.
Electromagnetic Data
EM surveys are used to identify zones of highconductivity which may represent massive sulphide mineralisation. EMis an active technique where power generators are used to createelectromagnetic fields in the sub-surface. Modelling of the datacreates conductive ‘plates’, or tabular zones, which are modelledto fit the EM data and aid geological interpretation for detaileddrill targeting. Three broad zones of high conductivity were modelledfrom the EM data:
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Immediately south of the Bruvann Mine, where themodelled plates strike east-west over 800 metres and dip steeplysouth, coincident with mapped graphite (modelled to a consistent valueof around 2000 siemens). However, a sub-parallel plate west of theBruvann Mine and coincident with a narrow zone of nickel sulphidemineralisation drilled historically represents an importantexploration target (Bruvann 01) (Figures 2 and 4).
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350 metres west of and down-plunge from the BruvannMine, at the western limit of the EM survey. Three alternative flatlying plates have been modelled at depthsbetween 350 and 1000 metres below surface, and an extension to the EMsurvey to better define this target (Bruvann 02) (Figures 2 and 4) isplanned for late July 2023.
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Northeast trending, steeply northwest dipping plateslocated one kilometre northeast of the Bruvann Mine, parallel to thecontact between gneiss and the gabbronorite intrusion (Figures 2 and5). Whilst graphite is mapped at surface in this area, a zone ofcomplex EM plates in the northeast is proximal to a mapped peridotitedyke within the gabbronorite and is undrilled (Bruvann 03).
Target generation from EM and MT datainterpretation
Geological mapping, interpretation of historical drilldata and processing of MT and EM geophysical data has resulted in thedefinition of three main target areas at Bruvann (Figure 2):
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Bruvann 01: A strong, 400 by 600 metre MT conductivebody is located west and down plunge of the mined-out massive sulphidemineralisation, which is blind at surface and has not been drilltested (Figures 2 and 3). An EM plate has been modelled coincidentwith the gradient of the MT conductor and is proximal to narrowmassive sulphide historical drill intercepts of 1.1 metres at 0.9 % Nifrom 278.4 metres and 0.1 metres at 2.7 % Ni from 299.5 metres(P-8-96), which are open in all directions (Figure 4).
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Bruvann 02: The northern gradient of the above MTconductor is coincident with poorly constrained EM plates at thewestern extremity of the survey area (Figures 2 and 4). This target is350 metres west and down dip of the Bruvann Mine where mineralisationis open, including historical drill intercepts from underground drillstations, for example 20.4 metres at 0.45 % Ni (BG-64-01), 18.3 metresat 0.48 % Ni (bh-1144-02), 23.0 metres at 0.42 % Ni (bh-1143-02) and11.4 metres at 0.67 % Ni (BG-39-01)
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Bruvann 03: An MT conductor coincident with a modelledEM plate occurs at the contact between gneiss and a peridotite dykehosted in gabbronorite, located one kilometre northeast of the BruvannMine (Figures 2 and 5). The conductor continues from surface to overone kilometre below surface and drilling will test both the EM plateand the gradient between very high and moder ateconductivities. This is inferred to represent a zone of potentialmassive sulphide mineralisation at the contact between peridotite andgneiss wall rock with graphite horizons.
Follow up work totest the above targets will include diamond drilling as part of thecurrent program and an extension to the ground EM survey, due tocommence at the end of July 2023. The purpose of this is to betterdefine the location and orientation of the Bruvann 02 target prior todrill testing. Downhole EM surveys will be completed at the same timeas the extension to the ground EM, to generate and refine additionaldrill targets.
Figure 1: Råna Project area andlocation of 2023 geophysical programs
Figure 2. Map showing priorityexploration targets at the Bruvann Mine Area,
Råna Project
Figure 3: Long section (SectionA-A’) showing MT data and exploration targets
at Bruvann Mine. Note that minedout high grade mineralisation occurs on a strong MT gradient betweenhigh and moderate conductive zones.
Figure 4: Cross section (SectionB-B’) showing modelled EM plates and deep MT conductive target tothe west of Bruvann Mine.
Figure 5: Cross section (SectionC-C’) showing MT data and modelled MT plates. The large MTconductive body is located at the contact between host gneiss and theRåna intrusion, and underlies a peridotite dyke mapped atsurface.
Kingsrose Mining Limited
Kingsrose is a leading sustainability-conscious andtechnically proficient mineral exploration company listed on the ASX.The Company has a discovery-focused strategy, targeting theacquisition and exploration of critical mineral deposits having Tier-1potential, that has resulted in the acquisition of, or joint ventureinto, the Råna nickel-copper-cobalt, Penikat PGE and PorsangerPGE-nickel-copper projects in Finland and Norway. Additionally,Kingsrose has been selected for the first cohort of the BHP Xplorexploration accelerator program which commenced in January2023.
QualifiedPerson
Mr. Paul Sarjeant, P. Geo., a Director andshareholder is the qualified person for this release as defined byNational Instrument 43-101 - Standards of Disclosure for MineralProjects.
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Global Energy Metals Corp. offersinvestment exposure to the growing rechargeable battery and electricvehicle market by building a diversified global portfolio ofexploration and growth-stage battery mineral assets.
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