공지 • Aug 30
EV Resources Limited Announces Exploration Commencement At Don Enrique Project
EV Resources Limited announced that exploration has commenced after weeks of successful and constructive engagement with the communities in close proximity of the Don Enrique Project in Peru. The communities are contributing labour to the exploration campaign, and EVR's specialist community team are in continual dialogue with the communities to establish a long-term relationship of trust, co-operation, and respect. The exploration programme has commenced with an underground sampling programme in a series of 4 exploration cross cuts developed by a Peruvian mid-tier company in the 1980's, which neatly allows evaluation of the 2 separate and parallel hydrothermal breccia orebodies estimated to vary between 5-20 metres in width, over a 1500 metre outcropping strike, and separated by an andesite parting typically 90 metres in width. It is in this crosscut, that historic grab sampling (verified by EVR's geological team), had assayed up to 7.17% Copper in Sample RDEN-1 (taken at E 459997, and N 8712314 using Datum WGS84). Channel samples that are 2 meters in length are being collected with a manual rock cutter and diamond saw, supported by a small generator on site to recharge batteries. Conventional QA/QC controls are being employed by experienced geologists under the leadership of Mr. Gonzalo Lemuz, a veteran geologist who has held leadership positions in major and junior companies with a focus on copper and gold. The Project consists of 4 licences covering 1,800Ha, in an area 21km northeast of Jauja, and approximately 260km from the Nation's capital, Lima: Don Enrique, Licence number: 0100769-12, 1000 Ha. Chaupiloma 2007, Licence Number: 0105549-07, 100 Ha. Chaupiloma 2008, Licence Number: 0101581-08, 100 Ha. COCOA BEACH, Licence Number: 010155815, 600 Ha. The outcropping system at Don Enrique presents as two zones of massive silicification, about 100m apart, one approximately 5m wide and the other 15 to 20m wide, dipping steeply east and striking 320°. The wider, western, vein has a matrix of quartz carbonate and contains pods of massive sulphide with the assemblage pyrite-chalcopyrite-galena and lesser sphalerite-stibnite, with later possibly supergene bornite (Yparraguirre and Blas Rodriguez, 2019). The vein hanging wall has a 2m thick hydrothermal breccia zone. The veins are hosted in an intrusive rock which has been mapped variously as diorite or hypabyssal andesite; it cuts a sequence of dacites and volcano- sedimentary rocks of the Mitu Group, Permian in age. There is an evident structural control which may be related to a regional scale SW-NE fault in the valley floor. The western vein/breccia has been explored (probably in the 1960s) via an underground drive 80m long and four crosscuts of 15m to 20m which cut the structure. On surface, the two silicified structures can be traced for approximately 1 km in the Southern Area. On the northern side of the main valley, the host intrusives have been mapped for a further 500m strike length with anomalous Cu, Pb and Zn rock chip geochemistry. Veins of quartz with chalcopyrite, galena and molybdenite have been mapped with widths up to 1.5m and continuity up to 30m. The mineralogy and geochemistry of the polymetallic veins/breccias suggest that the system is distally related to a porphyry copper. No source intrusion has been recognized to date. Anomalous values of gold and silver, along with fluid inclusion temperatures in the 150°C to 220°C range, suggest the presence of an epithermal overprinting mineralization event exploiting the same structural control. A suite of typical pathfinder elements (As-Sb-Bi-Hg) are also anomalous and reinforce the idea of an epithermal overprint. The rationale for commencing exploration in the old exploration adits and cross cuts is the excellent presentation of geological structure and mineralisation, which has given EVR the confidence to commence drill permitting. A geophysical Exploration Programme employing IP (Induced Polarisation) and Magnetometry is being planned to follow the sampling and select drilling targets. The highest values in rock chips occur in the underground samples, which raises the possibility that surface weathering may have leached metals and reduced the geochemical contrast for the surficial samples which represent most of the area. There is clear potential at Don Enrique for two possible scenarios: Small scale underground mining of the silicified breccias themselves, with the potential for high grade epithermal pods in structurally controlled jogs. A possible porphyry system at depth which is the fluid source. Because of the uplift rates often encountered in the Andes, it is often possible to find related porphyry and epithermal systems in relatively close proximity.