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Filo Mining Extends Breccia 41 by 175m to the North; FSDH057 ends in 13.8% Cu, 13.2 g/t Au and 507 g/t Ag

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Filo Mining Extends Breccia 41 by 175m to the North; FSDH057 ends in 13.8% Cu, 13.2 g/t Au and 507 g/t Ag






Filo Mining Corp. (TSX: FIL) (Nasdaq First North Growth Market: FIL) (OTCQX: FLMMF) provides assay results from hole FSDH057 which successfully extends the high-grade Breccia 41 zone by 175m to the north; highlights are listed below, along with accompanying figures:

Drillhole FSDH057 ended prior to reaching target depth, with the final 11.1m of the hole returning 17.6% CuEq

    • The final 1.1m sampled 27.9% CuEq (13.84% Cu, 13.15 g/t Au, and 507.0 g/t Ag)
  • In total, FSDH057 returned 651.1m at 1.12% CuEq from 136m, including;
    • 28.0m at 109.9 g/t Ag from 404m in the silver zone
    • 289.1m at 2.0% CuEq from 498m in the Aurora zone, including
    • 11.1m at 17.6% CuEq from 776m in Breccia 41
  • FSDH065, currently underway, is planned as a scissor hole on the same section as FSDH057. Collared 690 m to the west of FSDH057, and drilling back towards the east, FSHD065 is designed to test the depth extension of the high-grade mineralization reported here.


Commenting on the results, Jamie Beck, President and CEO stated, “A remarkable result; hole 57 extends the bonanza-grade Breccia 41 mineralization another 175m to the north, building on the potential volume of this extremely high-grade rock. Prior to reaching target depth, the hole ended in the highest-grade copper we’ve ever reported at Filo del Sol.”


HOLE-ID From (m) To (m) Length (m) Cu % Au g/t Ag g/t CuEq1 %
FSDH057 136.0 787.1 651.1 0.63 0.37 25.6 1.12
incl 404.0 432.0 28.0 0.01 0.19 109.9
incl 498.0 787.1 289.1 1.18 0.68 36.0 2.00
and incl 776.0 787.1 11.1 9.11 8.87 230.4 17.60


FSDH057 was collared 200m to the north of FSDH041 and drilled to the west at an angle of -75o to a final depth of 787.1m before being truncated. It ended in very high-grade mineralization, with the last 11.1m at 17.60% CuEq (9.11% Cu, 8.87 g/t Au, 230.4 g/t Ag), and entered Breccia 41 at a depth of 776m. This hole represents the most northerly intersection of both the Aurora Zone and Breccia 41 to date. Both zones remain open to the north towards hole FSDH043, which was drilled over 600m to the north and intersected 293.7m at 0.61% CuEq.  FSDH057 also intersected the extension of the flat lying, high-grade silver zone between 404m and 432m, confirming continuity of this zone between hole FSDH055A (200m to the south) and FSDH037 (250m to the northwest).


The hole intersected rhyolite volcaniclastics and microdioritic dykes up to 320m, followed by phreatomagmatic and magmatic-hydrothermal breccias along with porphyry bodies. Advanced argillic alteration and silicification are present throughout the hole accompanied by A, B and D type porphyry and epithermal veining. Both alteration and mineralization patterns confirm continuity of the high-grade Breccia 41 zone intersected in holes FSDH041 and FSDH054 to the south. The entire hole is outside of the resource shell.




Drilling is ongoing with 7 diamond drill rigs, in addition to a reverse circulation rig, and several holes are currently underway. Holes are designed to explore the area around the high-grade intersection in FSDH041 from the 2020/2021 season, along with some moderate step-outs to test continuity of the Aurora zone, and larger step-out holes to continue to try to find the edges of the mineralized zone. Holes that have now been completed with assays pending include:

  • FSDH055C, located approximately 50m north of FSDH041, was drilled to a final depth of 1,486m
  • FSDH060, located 2km northeast of FSDH041, was drilled to a final depth of 1,070m


Assay results for these holes will be released as they are received, analyzed and confirmed by the Company.


About Filo del Sol


Filo del Sol is a high-sulphidation epithermal copper-gold-silver deposit associated with one or more large porphyry copper-gold systems. Overlapping mineralizing events combined with weathering effects, including supergene enrichment, have created several different styles of mineralization, including structurally controlled and breccia-hosted gold, manto-style high-grade silver (+/- copper) and high-grade supergene enriched copper within a broader envelope of disseminated, stockwork and breccia-hosted sulphide copper and gold mineralization. This complex geological history has created a heterogeneous orebody which is characterized by zones of very high-grade copper +/- gold +/- silver mineralization within a large envelope of more homogeneous, lower-grade mineralization.


Qualified Persons and Technical Notes


The scientific and technical disclosure for the Filo del Sol Project included in this news release have been reviewed and approved by Bob Carmichael, B.A.Sc., P.Eng. who is the Qualified Person as defined by NI 43-101.  Mr. Carmichael is Vice President, Exploration for the Company. Samples were cut at Filo Mining’s operations base near the town of Guañizuil, Argentina by Company personnel. Diamond drill core was sampled in 2 metre intervals (except where shortened by geological contacts) using a rock saw for sulphide mineralization. Oxide mineralization was cut with a core splitter in order to prevent dissolution of water-soluble copper minerals during the wet sawing process. Core diameter is a mix of PQ, HQ and NQ depending on the depth of the drill hole. Samples were bagged and tagged and packaged for shipment by truck to the ALS preparation laboratory in Mendoza, Argentina where they were crushed and a 500g split was pulverized to 85% passing 200 mesh. The prepared samples were sent to the ALS assay laboratories in either Lima, Peru or Santiago, Chile for copper, gold and silver assays, and multi-element ICP and sequential copper analyses. ALS is an accredited laboratory which is independent of the Company. Gold assays were by fire assay fusion with AAS finish on a 30g sample. Copper and silver were assayed by atomic absorption following a 4 acid digestion. Samples were also analyzed for a suite of 36 elements with ICP-ES and a sequential copper leach analysis was completed on each sample with copper greater than 500ppm (0.05%). Copper and gold standards as well as blanks and duplicates (field, preparation and analysis) were randomly inserted into the sampling sequence for Quality Control. On average, 9% of the submitted samples are Quality Control samples. No data quality problems were indicated by the QA/QC program.


Mineralized zones within the Filo del Sol deposit are typically flat-lying, or bulk porphyry-style zones and drilled widths are interpreted to be very close to true widths. Additional drilling is required to estimate the true width of the bonanza grade mineralization within Breccia 41.


1Copper Equivalent (CuEq) for drill intersections is calculated based on US$ 3.00/lb Cu, US$ 1,500/oz Au and US$ 18/oz Ag, with 80% metallurgical recoveries assumed for all metals.  The formula is:  CuEq % = Cu % + (0.7292 * Au g/t) + (0.0088 * Ag g/t).


About Filo Mining


Filo Mining is a Canadian exploration and development company focused on advancing its 100% owned Filo del Sol copper-gold-silver deposit located in Chile’s Region III and adjacent San Juan Province, Argentina. The Company’s shares are listed on the TSX and Nasdaq First North Growth Market under the  and on the OTCQX. Filo Mining is a member of the Lundin Group of Companies.


Figure 1: Filo Mining Base Map with Satellite Image May 2022 (CNW Group/Filo Mining Corp.)



Figure 2: Filo Mining Long Section with Plan Map May 2022 (CNW Group/Filo Mining Corp.)


Posted May 13, 2022

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