Company Announcements

Mt Weld & Ground Magnetics Update

Source: RNS
RNS Number : 3613Q
Corcel PLC
20 February 2023

Corcel PLC

("Corcel" or the "Company")


Carbonatite REE Targets - Mt Weld REE Project

Ground Magnetics Finalises Drill Design



20 February 2023

Corcel Plc (London AIM: CRCL), the natural resource exploration and development company, with interests in battery metals including nickel, cobalt, and rare earth elements, announces that its farm in partner on the Mt. Weld project, Riversgold Ltd ("RGL"), has completed 3D Inversion Magnetics work on the existing drill targets at Mt. Weld in order to prepare for an upcoming drill campaign at the property. 


o Magnetic features refined by ground magnetics offer clear drill targets, only 1.4km from Lynas' Mt Weld rare earth oxide mine 

o Maiden eight-hole, 2,000 metre reverse circulation (RC) drill program designed to test multiple targets to depths of 250 metres

o Approvals being progressed, with aim to commence drilling this quarter

The Company reports that RGL has now released the results of a ground magnetic geophysical survey on the Company's joint venture tenement, and has confirmed the validity of multiple magnetic targets and allowed refined planning for drilling (Figure 1)(  The Mt Weld Project is located only 1.4km west-north-west of Lynas Rare Earths Limited's Mt Weld rare earth oxide (REO) mine near Laverton in Western Australia (Figure 2)( .

Corcel Chief Executive Officer, Scott Kaintz commented: "The first operational activity following our farm-out of the Mt. Weld project has now been completed, confirming the immediate prospectivity of the project that we first observed last year.  We look forward to the initial drill campaign beginning and to developing more projects of this nature, offering investors exposure to exploration upside at minimal cost to Corcel." 

Figure 1: Ground magnetic results with sectional slice, confirm strong drill targets at T1 to T3 (see Figures 2 and 3 for location information with section line A-B).

Figure 2: Location of Corcel's Mt Weld Project (P38/4489) with location of magnetic features T1-4, identified from open file magnetic data, and its proximity to Lynas's Mt Weld REO Mine.

About the Mt. Weld REE Project

The Mt Weld Project on tenement P34/4489 covers 171 hectares in size and straddles the mine access road to Lynas's Mt Weld Mine (see Figure 2). The tenement is predominantly covered by recent transported sediments obscuring the underlying geology, with four (4) discrete undrilled magnetic features (T1-T4) (Figure 3) ( (see Figure 1 - 3) which are interpreted to potentially represent carbonatite intrusives associated with the Mt Weld carbonatite intrusive complex 1.5km to the east.

As part of RGL's initial exploration works on the Mt Weld Project since the initial farm-out agreement with Corcel in January 2023, a ground magnetic survey was undertaken, which has confirmed the magnetic features and has assisted in the design of a maiden reverse circulation ("RC") program on T1-T3, with eight holes to be drilled to a depth of 250 metres, for a total of 2,000 metres. Approvals are being progressed, with the aim of commencing drilling this quarter.

Full details of the farm-out and joint venture agreement with RGL covering the Mt. Weld project were announced on 4 January 2023.  

Figure 3: Open file high resolution magnetic survey - North Sunrise Survey commissioned by Acacia Resources Ltd completed on 40m line spacing in an east west orientation with 25m terrain clearance. Section Line A -B can be seen in Figure 1 as oblique view.

Qualified Persons Statement:

The information in this document that relates to exploration is based on information compiled or reviewed by Edward Mead, who is a Member of the Australasian Institute of Mining and Metallurgy.  Mr. Mead has sufficient experience that is relevant to the style of mineralisation under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves.  Mr. Mead consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

For further information, please contact:

Scott Kaintz                                                                              Corcel Plc CEO

020 7747 9960                                                

James Joyce / James Bavister /Andrew de Andrade             WH Ireland Ltd NOMAD & Broker

0207 220 1666                                                

Patrick d'Ancona                                                                      Vigo Communications IR

0207 3900 230                                              







The following Tables are provided to ensure compliance with the JORC Code (2012 Edition) requirements for the reporting of Exploration Results at Mt Weld.


Section I: Sampling Techniques and Data

(Criteria in this section applies to all succeeding sections)



JORC Code explanation


Sampling techniques

Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

Geometrics G858 Roving magnetometers with CV sensors sampling at 1Hz (2 x Rovers).

Geometrics G857 Base Station magnetometers sampling the Diurnal field once every 20 seconds. 

Include reference to measures taken to ensure sample

representivity and the appropriate calibration of any measurement tools or systems used.

No sampling undertaken.


Aspects of the determination of mineralisation that are Material to the Public Report. In cases where 'industry standard' work has been done this would be relatively simple (eg 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay'). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

No sampling for mineralisation.


Drilling techniques

Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic etc) and details (e.g. core diameter, triple of standard tube, depth of diamond tails, face-sampling bit or other type, whether core is orientated and if so, by what method, etc).

No drilling is being reported.


Drill sample recovery

Method of recording and assessing core and chip sample recoveries and results assessed.

No drilling is being reported.


Measures taken to maximise sample recovery and ensure representative nature of the samples.

No drilling is being reported.


Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

No drilling is being reported.




Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

No logging undertaken.

Whether  logging  is  qualitative  or  quantitative  in  nature. Core (or costean, channel, etc) photography.

No logging undertaken.

The total length and percentage of the relevant intersections logged.

No logging undertaken.

Sub-sampling techniques and sample preparation

If core, whether cut or sawn and whether quarter, half or all core taken.

No sub-sampling has been undertaken.


If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

For all sample types, the nature, quality and appropriateness of the sample preparation technique.

Quality control procedures adopted for all sub- sampling stages to maximise representivity of samples.

No sub-sampling has been undertaken.


Measures taken to ensure that the sampling is representative of the in-situ material collected, including for instance results for field duplicate/second- half sampling.

No sub-sampling has been undertaken.


Whether sample sizes are appropriate to the grain size of the material being sampled.

No sub-sampling has been undertaken.


Quality of assay data and laboratory tests

The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

No assay data or laboratory tests.

For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc.

Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.

Verification of sampling and assaying

The verification of significant intersections by either independent or alternative company personnel.

Data was gridded and coloured by Southern Geoscience Consultants for interpretation purposes.

No drilling being reported

Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

Discuss any adjustment to assay data.

Location      of data points

Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

All locations determined by handheld GPS using GDA94 datum in UTM Zone 51.


Specification of the grid system used.


Quality and adequacy of topographic control.

Data spacing and distribution

Data spacing for reporting of Exploration Results.

Ground magnetic survey data presented was acquired in January 2023 survey by Southern Geoscience Consultants Pty Ltd. Data collected at 25m line spacing, north-south line direction at ~2m sensor height.  Equipment utilized:

·      Geometrics G858 Roving magnetometers with CV sensors sampling at 1Hz (2 x Rovers)

·      Geometrics G857 Base Station magnetometers sampling the Diurnal field once every 20 seconds 



Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

Sampling type not designed to be used in an MRE.


Whether sample compositing has been applied.

No compositing has been applied.

Orientation of data in relation to geological structure

Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

Survey was walked perpendicular to know structures.


If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

No drilling has been undertaken and orientation of mineralised structures is unknown.

Sample security

The measures taken to ensure sample security.

Data was supplied directly by the contractor and has been reviewed by Southern Geoscience Consultants.


Audits or reviews

The results of any audits or reviews of sampling techniques and data.

Data was supplied directly by the contractor and has been reviewed by Southern Geoscience Consultants.




Section II: Reporting of Exploration Results

(Criteria listed in the preceding section also apply to this section)


Mineral tenement and land tenure status

Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.

The prospecting licence P38/4489 is held by Peter Gianni with transfer of title to Corcel Plc in process. A Farm-in and Joint Venture agreement with London listed Corcel Plc (Corcel) to earn up to a 70% interest, was announced on 4 January 2023 with key terms as follows:


·      RGL agrees to sole fund A$500,000 during the First Earning Period (the earlier of 12 months, expenditure met or withdrawal) to earn 50% of the Project.

·      In the event RGL wishes to withdraw during the First Earning Period, RGL must spend a minimum of A$100,000 within the first six months or pay the balance of the A$100,000 in cash to Corcel.

·      At the conclusion of the First Earning Period and following notice by RGL to commence the Second Earning Period from, Corcel may elect to either:

commence the Second Earning Period during which time RGL must sole fund a further A$1,000,000 within 12 months to earn an additional 20% interest in the Project; or

contribute to expenditure in proportion to their respective interests of 50% each under a joint venture agreement.


The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.

The tenements are in good standing and there are no known impediments to operate.

 Exploration done by

 other parties

Acknowledgment and appraisal of exploration by other parties.

No exploration of note has been undertaken.



Deposit type, geological setting and style of mineralisation.

The tenement is located 1.5 km to the west of the Mt Weld Carbonaitite REE mine, with magnetic features withinP38/4489 potentially associated with this intrusion.

Drill hole Information

A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

·      easting and northing of the drill hole collar

·      elevation or RL (Reduced Level - elevation above sea level in metres) of the drill hole collar

·      dip and azimuth of the hole

·      down hole length and interception depthhole length.

No drilling being reported.

If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.

No drilling being reported.

In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg. cutting of high grades) and cut-off grades are usually Material and should be stated.

Data aggregation methods

Where aggregate intercepts incorporate short lengths of high-grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.

No aggregation methods have been used.


The assumptions used for any reporting of metal equivalent values should be clearly stated.

No aggregation methods have been used.


These relationships are particularly important in the reporting of Exploration Results. If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg 'down hole length, true width not known').

No metal equivalent values are being used.

Relationship between mineralisation widths and intercept lengths

Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

No mineralisation widths have been reported.


Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

Location maps of projects within the release with relevant exploration information contained.

Balanced reporting

Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

The reporting of exploration results is considered balanced by the competent person. The locations of rock chip samples will be released once assays are returned from the laboratory.

Other substantive exploration data

The nature and scale of planned further work (eg. tests for lateral extensions or depth extensions or large-scale step-out drilling).

Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

No other exploration to report.

Further work


Drilling using Reverse Circulation (RC) technique to investigate magnetic anomalism identified from ground magnetic survey.



The information contained within this announcement is deemed to constitute inside information as stipulated under the Market Abuse Regulation (EU) No. 596/2014 which is part of UK law by virtue of the European Union (withdrawal) Act 2018. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

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