Sendero Resources Corp. (TSX-V: SEND) is pleased to announce results of three more diamond drillholes from its maiden drilling program at its 100% owned Peñas Negras Project in the Vicuña District in La Rioja, Argentina. These latest results from holes PNDH004 to PNDH006 continue to demonstrate the significant potential of the project.

Highlights

• PNDH006 (La Ollita) intersected 364m of 0.51 g/t Gold Equivalent “AuEq” from a shallow depth of 34m to the bottom of the hole. The upper part of the hole intersected 114m of 0.84 g/t Gold Equivalent “AuEq” including 22m of 1.61 g/t AuEq
• PNDH004 (La Ollita) intersected 266m of 0.52 g/t AuEq from 96m to post-mineral fault zone. The upper part of the hole intersected 166m of 0.63 g/t AuEq including 72m of 0.72 g/t AuEq and 20m of 0.82 g/t AuEq
• Maiden drilling at La Ollita PNDH003-PNDH008 is confirming the presence of a large, high-level mineralized advanced argillic epithermal lithocap telescoped on a porphyry gold–copper system
• All five holes drilled at La Ollita (PNDH003-PNDH008) ended in severe faulting with strong silica-sericite clay alteration, at what is considered to be the base of the large mineralized lithocap, and have not tested the porphyry system below
• PNDH007 and PNDH008 (assays pending) designed to test the large magnetic anomalies intersected high levels of magnetite and in PNDH008 bornite replacement of the chalcopyrite was identified
• The exploration focus going forward at La Ollita is finding the high-grade feeder zone/s into lithocap and navigating out of the base of the lithocap to test the porphyry system below

Sendero Executive Chairman, Michael Wood, commented:

“La Ollita is a large telescoped mineral system with multiple phases of porphyry and epithermal mineralization identified in our initial drilling. We are learning a great deal with each hole that is drilled and starting to find higher grade zones such as 22m of 1.61 g/t AuEq. The feeder zone into the advanced argillic lithocap is the big prize for us where the grade should be substantially higher and often where large amounts of the metals are contained within lithocap deposits.

We have seen extensive mineralization and alteration telescoping in holes 3, 4 and 6 with multiple phases of porphyry and epithermal mineralization identified, creating scale with continuous mineralization of 250m+ from beneath the moraine cover until we encountered the extensive fault zone at what we believe is the base of the lithocap, in all holes drilled to date at La Ollita.”

Figure 1: Plan View of La Ollita Drill Holes (PNDH003-008) with historic drill holes of significance

PNDH006

Hole PNDH006, showed telescoping of alteration and mineralization, intersecting a complex of porphyries, and associated phreatomagmatic breccias hosted in volcanic host rocks. The hole ended in mineralization at a depth of 398m for a total intersection of 364m averaging 0.51 g/t AuEq (Figure 2 and Table 1).

The alteration in the upper part of the hole is prominently advanced argillic, characterized by quartz-alunite-sericite with incipient vuggy quartz, which hosted the highest-grade mineralization including 22m of 1.61 g/t AuEq, with individual metal values of up to 1.28 g/t Au, 115 g/t Ag, 0.42% Cu, 4.73% Zn, 1.18% Pb and 195 ppm Mo.

Lower in the hole strong potassic alteration (K feldspar-biotite-magnetite) is observed, particularly in early porphyry dykes with high density quartz veinlets, superimposed by intense sericite-quartz. The late-stage porphyries, on the other hand, are chloritized with scarce to no quartz veining.

Primary mineralization consists of disseminated and quartz vein-hosted chalcopyrite, overlain by pyrite-chalcocite-black sulfides filling fractures and breccia matrix. Additionally, numerous intermediate sulfidation epithermal veins have been identified, composed of quartz and massive sulfides, predominantly galena and sphalerite together with elevated gold, silver and zinc values. The hole ended in a fault zone with strong silica-sericite clay alteration, the believed base of the lithocap.

Figure 2: PNDH006 La Ollita – Grade Distribution, Lithology and Alteration 

Figure 3: PNDH004 La Ollita – Grade Distribution, Lithology and Alteration 

Table 1: PNDH006 Drill Highlights

Table 2: PNDH004 Drill Highlights

 Table 3: PNDH005 Drill Highlights

 Note: Gold Equivalent Values (“AuEq”) are based on metals prices of $2000/oz Au $4/lb Cu, $25/oz Ag, $20/lb Mo, $1.30/lb Zinc and $1/lb lead and recovery is assumed to be 100% as no metallurgical data is available.

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About Sendero Resources Corp.

The Company is focused on copper-gold exploration at its 100% owned Peñas Negras Project in the Vicuña Belt in Argentina. The Peñas Negras Project has similar geological characteristics to other deposits in the Vicuña Belt and a cluster of porphyry and epithermal targets have been identified on the project. The Company, through its wholly owned subsidiary, Barton SAS, is the holder of ten granted mining concessions covering 120 km² in the province of La Rioja, Argentina. The company also has an option agreement to earn 80% interest on eight granted mining concessions covering 91.7 km² adjacent to the East of the Peñas Negras Project. The Company has an experienced management and exploration team who will use their expertise and operational knowledge to advance the multiple targets across the project.