Work has been ongoing as part of a planned 2020 calendar year program that was described in the
Highlights
To date, 4,108 metres have been drilled over five wide-spaced drill holes with two drill holes in progress on a previously undrilled new greenfields porphyry copper-gold-molybdenum system; MERC-001 intercepted 64.60 metres from surface grading 0.11% copper, 0.20 g/t gold, 0.03% molybdenum, and 4.1 g/t silver (0.44% CuEq), including 9.00 metres grading 0.15% copper, 1.15 g/t gold, 0.20% molybdenum, and 21.1 g/t silver (2.04% CuEq); MERC-002 intercepted 145.22 metres of near surface mineralization grading 0.22% copper, 0.04 g/t gold, 0.01% molybdenum, and 1.0 g/t silver (0.30% CuEq), including 49.10 metres grading 0.27% copper, 0.05 g/t gold, 0.01% molybdenum, and 1.1 g/t silver (0.36% CuEq), and Porphyry mineralization discovered in several manual test pits in the Zambohuaycu Norte area and the increase in porphyry-related veining and stronger biotite alteration in hole MERC-005 strengthen drill targeting north and northwest of Zambohuaycu showing.
The Pijili project consists of three concessions which total 3,246 hectares located approximately 5 km south of the Chaucha copper-molybdenum deposit controlled by
Drilling Results
MERC-001 intersected numerous breccia units at the top of the drill hole (1.40 to 19.85 metres; 34.40 to 40.2 metres; 65.75 to 67.25 metres and 112.20 to 131.25 metres) within a variably altered quartz diorite intrusion over its 915-metre length. The breccia units at the top of the drill hole were predominantly biotite and chlorite altered and contained visible sulphide mineralization (chalcopyrite, pyrite, +/- bornite, and +/- molybdenite). The orientation and potential structural control of the hydrothermal breccia units will require additional drilling at this early stage to be determined.
A current interpretation review of the porphyry system geological framework, hydrothermal alteration, veining and mineralization in MERC-001 to the target generation initiative results suggests the drill hole skirted the northern edge of the hydrothermal breccia system observed in the large surface footprint mapped and exploited by the former artisanal mine within the concession. The technical team is reviewing options for a follow-up drill hole to better evaluate this large known occurrence of mineralized hydrothermal breccia.
MERC-002, drilled 685 metres from MERC-001, successfully intersected mineralized hydrothermal breccia in two intervals from 14.00 metres to 110.70 metres and 113.95 metres to 149.10 metres. These two intervals contain variable concentrations of sulphide mineralization (chalcopyrite, bornite, molybdenite) and display both biotite and chlorite alteration. Below the hydrothermal breccia intervals in MERC-002, weaker intensity sulphide mineralization continues to be noted in both feldspar phyric and hornblende phyric diorite intrusive phases.
The third drill hole, MERC-003, drilled 167 metres to the east-northeast of MERC-002, was designed to evaluate the porphyry-style veining mapped on surface and to determine if hydrothermal breccia units mapped at the Zambohuaycu showing extend to the northeast. Drilling intersected widespread, low-grade porphyry-style mineralization hosted in the veining, within a predominantly hornblende phyric intrusion, however, no hydrothermal breccia was intersected in MERC-003.
MERC-004 was designed to further evaluate the hydrothermal breccias of the Zambohuaycu showing and those intersected in MERC-002. It was oriented to undercut MERC-002. Two zones of hydrothermal breccia were intersected from 22.20 to 66.70 metres and from 72.40 to 79.08 metres. Both intervals contain variable concentrations of sulphide mineralization (chalcopyrite, pyrite, +/- bornite, and +/- molybdenite) and display biotite, chlorite, and sericite alteration. As seen in MERC-002, sporadic sulphide mineralization is present in both the feldspar porphyritic and hornblende porphyritic phases of the diorite intrusion below the upper hydrothermal breccia intervals.
MERC-005 was drilled to the northwest from the MERC-003 platform under the area northeast of the Zambohuaycu showing. It has intersected three phases of the diorite intrusion, a hornblende phyric phase from 10.50 to 416.55 metres, a feldspar phyric phase from 422.30 to 456.63 metres, and a quartz-rich phase from 463.04 to end of drill hole at 686.40 metres. Hydrothermal breccia was present from 167.15 to 179.75 metres. This drill hole displays generally stronger hydrothermal alteration and higher aggregate quartz dominant vein content (A-, B-, and AB-type) signatures relative to the prior holes located to the south.
The sixth drill hole, MERC-006, is currently in progress at 670 metres and is being drilled 133 metres to the northeast of MERC-003 and MERC-005. It was designed to evaluate the porphyry-style veining mapped on surface and to determine if hydrothermal breccia units mapped at the Zambohuaycu showing, 300 metres to the southwest. The drill hole has remained in the hornblende phyric diorite intrusion except for one narrow interval of hydrothermal breccia (30.21 to 32.40 metres) and two magmatic breccia intervals (55.20 to 77.60 and 161.46 to 162.77 metres). Sulphide mineral content is variable, but the drill hole does contain both chalcopyrite and pyrite mineralization associated with the porphyry veining.
MERC-007 is currently in progress and was collared 412 metres to the north of MERC-002, and it was designed to evaluate the porphyry-style veining and hydrothermal breccia mapped on surface. It is currently at 371 metres with drilling having started in the feldspar porphyritic diorite intrusion and then transitioned at 168.45 metres to quartz diorite. The drill hole has sulphide mineralization logged over its entire length with the feldspar porphyritic diorite possessing predominantly chalcopyrite, however, upon the transition to quartz diorite, pyrite appears, and its content increases downhole as chalcopyrite decreases.
Samples from MERC-004 are currently in the laboratory queue while technical staff are still sampling MERC-005. The technical staff are also actively core logging both MERC-006 and MERC-007 while drilling continues. Assay results from these drill holes will be released after they are received from the laboratory and passed internal quality assurance and quality control (QAQC) protocols during the fourth quarter of 2020.
About
About Salazar
This press release contains 'forward -looking information' within the meaning of applicable Canadian securities laws. Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, identified by words or phrases such as 'believes', 'anticipates', 'expects', 'is expected', 'scheduled', 'estimates', 'pending', 'intends', 'plans', 'forecasts', 'targets', or 'hopes', or variations of such words and phrases or statements that certain actions, events or results 'may', 'could', 'would', 'will', 'should' 'might', 'will be taken', or 'occur' and similar expressions) are not statements of historical fact and may be forward-looking statements.
Forward-looking information herein includes, but is not limited to, statements that address activities, events, or developments that
Contact:
Tel: 1-416-230-3440
Email: christian@adventusmining.com
Web: www.adventusmining.com
(C) 2020 Electronic News Publishing, source