Cadence Minerals (AIM/NEX: KDNC; OTC: KDNCY) is pleased to announce that DEV Mineracao S/A ('DEV') has completed a new Mineral Resource Estimate ('MRE') in compliance with the Australian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves ('JORC Code, 2012') for the Amapa Iron Ore Project Brazil.
Highlights:
Substantial increase in total Measured, Indicated and Inferred Mineral Resources, to 276.24 Million Tonnes ('Mt') grading 38.33% Fe
New Measured Resource of 55.33 Mt grading 39.26% Fe
Measured and Indicated Resource increase to 229.48 Mt at 38.76% Fe, from 176.7 Mt at 39.75% Fe[1] , reported within an optimised pit shell and using a cut-off grade of 25% Fe.
Inferred Mineral Resource increased to 46.76 Mt at 36.20% Fe, from 8.7Mt at 36.9% Fe, reported within an optimised pit shell and using a cut-off grade of 25% Fe.
Cadence CEO
'The main aim of our new mineral resource statement was to provide a sound basis for pre-feasibility studies. In particular, to convert a significant portion of the indicated mineral resource into the measured category. The results reported today have achieved this goal and more.
The results clearly indicate the robustness and consistency of the Amapa resource.
As we move closer to the next stage of development, this higher degree of certainty in our mineral resource estimate provides more funding options for the Project. The new measured resource and the overall increase in the mineral resource provides a sound basis for an initial 15-year mine life, with the potential to expand this further by upgrading the 46.76 Mt of inferred resources.'
Assumptions and Method of MRE
Before this MRE, the most recent MRE on the
The geologic units that underlie the region consist of Archean basement rocks, TTG terrains (
Mineralisation extends approximately 6.5km in strike length, 1.5km in width, and exists in some areas to more than 100m in depth. Geological processes have weathered this proto-resource, the hard itabirite (ITC), actually considered waste, transforming part of the volume into mineral resources, the soft itabirite (ITB) illustrated in Figure 1 -Amapa Iron Ore Mineralisation here
A 3D geological model was built by an implicit modelling method based on interpreted geological domains using the drillhole database and study of the old sections provided by DEV, then used to flag the sample data for statistical analysis and to limit the resource estimation. For this study, statistical and geostatistical analysis was carried out on drilling data composited to 4 m downhole for APW/APS only. This included variography to model spatial continuity relationships in the geological domains.
Geostatistical analysis and interpolation were undertaken using MinePlan proprietary software. The Ordinary Kriging interpolation method was used for the estimation of Fe, Al2O3, SiO2, P, and Mn, using variogram parameters defined from the geostatistical analysis for the APW/APS domains.
Wet Bulk density values for the Amapa deposit were assigned based on data provided by DEV. The density values were assigned to 15 lithologies based on almost 678 density samples for friable and compact material collected from 2006 to 2012.
Mineral Resource Statement
The MRE has been reported at a cut-off grade of 25% Fe constrained by a resource open pit and the topography dated
Prominas notes that the Mineral Resource has a reasonable prospect for eventual economic extraction but is not currently considered Ore Reserves. Ore Reserves are estimates of the tonnage and grade or quality of material contained in a Mineral Resource that can be economically mined and processed. To be considered an Ore Reserve, modifying factors must be applied to the MRE as part of the preparation of a Pre-Feasibility or Feasibility Study. The estimated amount of saleable material contained in the final product must demonstrate a positive net present value using an appropriate discount rate and must demonstrate that eventual extraction could be reasonably justified.
Prominas are not aware of any factors (environmental, permitting, legal, title, taxation, socio-economic, marketing, political, or other relevant factors) that have materially affected the Mineral Resource Estimate. The data used for the MRE update were drill hole databases with proper validations, topographic surveys and the previous Mineral Resource models provided by DEV with the work undertaken by Prominas, which included several site visits during 2021.
As required per the JORC Code 2012. Table 1 needed for the reporting of MREs is available here
Competent Person's Statement
The information that relates to Mineral Resources is based on information compiled by
Market Abuse Regulation (MAR) Disclosure
Certain information contained in this announcement would have been deemed inside information for the purposes of Article 7 of Regulation (EU) No 596/2014 until the release of this announcement.
Forward-Looking Statements
Certain statements in this announcement are or may be deemed to be forward-looking statements. Forward-looking statements are identi?ed by their use of terms and phrases such as 'believe' 'could' 'should' 'envisage' 'estimate' 'intend' 'may' 'plan' 'will' or the negative of those variations or comparable expressions including references to assumptions. These forward-looking statements are not based on historical facts but rather on the Directors' current expectations and assumptions regarding the Company's future growth results of operations performance, future capital and other expenditures (including the amount, nature and sources of funding thereof) competitive advantages business prospects and opportunities. Such forward-looking statements re?ect the Directors' current beliefs and assumptions and are based on information currently available to the Directors. Many factors could cause actual results to differ materially from the results discussed in the forward-looking statements including risks associated with vulnerability to general economic and business conditions competition environmental and other regulatory changes actions by governmental authorities the availability of capital markets reliance on key personnel uninsured and underinsured losses and other factors many of which are beyond the control of the Company. Although any forward-looking statements contained in this announcement are based upon what the Directors believe to be reasonable assumptions. The Company cannot assure investors that actual results will be consistent with such forward-looking statements.
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