Interra Copper Further Details Its Exploration Program At The Tres Marias Copper Project In Chile

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Overig advies 11/05/2023 08:46
May 4, 2023, VANCOUVER, British Columbia – Interra Copper Corp. (CSE: IMCX, OTCQB: IMIMF, FRA: 3MX) (“Interra” or the “Company”) is pleased to provide further detail on the first phase of its planned exploration program at the Company’s Tres Marias Copper Project (the “Project” or “Tres Marias”) in the Antofagasta region of Chile. On April 10th, 2023, the Company first announced its 2023 exploration program consisting of a planned 10,500 m of Reverse-Circulation (“RC”) drilling to test several high priority geological and geophysical anomalies located on the 16,250 ha Project.

Planning of the Phase 1 drill holes in the Western Central and Eastern target areas is based on the review of all geophysical surveys and interpretations, as well as the interpreted structures (i.e., faults), which were interpreted mainly from the MVI MAG sections (Figure 1).

Target Areas

Three target areas (Eastern, Central, and Western targets) were identified using a series of geophysical surveys, which included the reprocessing of 110 km² of ZTEM airborne survey completed by Freeport-McMoRan Inc. (“Freeport”) in 2013. The results of this geophysical reprocessing and 3D-inversion were processed using Machine Learning algorithms, with the new results supporting magnetic and resistivity anomalies in the three target areas.

As follow-up work, detailed magnetic surveys (UAV MAG) on E-W flight lines were completed over the three target areas: East Target (36 lines, each 6 km long, 100 m spacing, totalling 216 line-km); Central Target (21 lines, each 6 km long, 150 m spacing, totalling 126 line-km; and West Target (21 lines, each 8 km long, totalling 168 line-km) (Figure 1).

Results of the UAV MAG inversion supported the ZTEM magnetic anomalies located in the three target areas and based on these results, six 3D-Induced Polarization (3D-IP GSDAS) profiles were completed: East Target (2 lines, each 4.95 km long, totalling 9.9 line-km; Central Target (1 line, 6 km long, totalling 6 km); and West Target (3 lines, totalling 13.05 line-km) (Figure 1). The results of the 3D-IP geophysical survey outlined encouraging chargeability and resistivity results in all three target areas.

Historical Exploration Results

Historical exploration results from the Eastern Target area, which include surface rock samples and drill holes completed by Freeport (Figure 2), outline anomalies indicative of porphyry copper deposit (“PCD”) mineralization. Intersections from the Freeport drill holes are interpreted as representing the upper part of a hydrothermally altered system containing Zn-Ag-Pb-Cu polymetallic mineralization which correspond to the periphery of a possible PCD system. Notable historical diamond (TMD) and RC (TMRC) drill hole intercepts include TMD-15-02: 2.40 m @ 3.1% Cu and 19 ppm Ag (Manto-style mineralization); TMD-15-05: 386.50 m @ 1,162 ppm Zn and 363 ppm Pb; TMRC-18-01: 4.00 m @ 4.5% Cu and 121.5 ppm Ag (Manto-style mineralization); TMRC-18-02: 476.00 m @ 662 ppm Zn and 355 ppm Pb, including 34 m (238-272 m) @ 0.31% Zn and 0.26% Pb. More information can be found from the Company’s Technical Report entitled, “Independent NI 43-101 Technical Report on the Tres Marías Copper Project”, effective February 28, 2023 and can be found on the Company’s website HERE.

This drill hole evidence, combined with geophysical and geological interpretations, suggest a distal base metal front associated with a potential PCD system to the west-southwest of historical Freeport drilling, with structures such as the Guacate East and Guacate West faults allowing for the transfer of mineralizing fluids from a deeper intrusive target and into the sedimentary Quehuita Formation. Additionally, on the surface and west of the alteration zone (close to historical drill hole TMD-15-01), Type-D veinlets and traces of green copper oxide are observed, supporting a deeper exploration target to the west.

Phase 1 Exploration Program

The Phase 1 exploration program, comprising 3 RC drill holes, will focus on the Eastern Target area of the Project, immediately to the west of a previously identified alteration zone and in the area where Freeport completed diamond (core) and RC drilling (Figure 2).
see & read more on
https://interracopper.com/news-releases/interra-copper-further-details-its-exploration-program-at-the-tres-marias-copper-project-in-chile/

and see also
Interra Copper takes strategic move to tackle copper shortage through Chilean acquisition. see & read more on
https://www.kitco.com/commentaries/investment-trends/2023-05-09/Interra-Copper-takes-strategic-move-to-tackle-copper-shortage-through-Chilean-acquisition.html



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