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Cerro Blanco is located in the heart of the highly productive Paleocene Mineral Belt in northern Chile that
contains several important copper, gold and silver mines and projects. A small hill at Cerro Blanco is considered
to represent the upper parts of a porphyry copper system, and is surrounded by extensive post-mineral gravel
cover. The property is located along trend of important copper mines such as Spence and Sierra Gorda.
Cerro Blanco
CERRO BLANCOApril 2019
LOCATIONNorthern Chile, 130 km SE of Antofagasta
200 km SSW of Sierra Gorda (KGHM) and Spence (BHPB)
OWNERSHIP100% Revelo
Subject to a 1% NSR payable on all metals
PROPERTY SIZE ~ 6,500 Ha
STATUS Available for Option & JV
DEPOSIT TYPEPorphyry Copper (+/- Mo +/- Au)
High-Sulphidation, Epithermal Copper-Gold
STAGEEarly stage with ~ 630 m drilling
NI 43-101 Technical Report Available (2014)
INFRASTRUCTUREEasy access – close to Pan-American Highway
Modest altitude of approximately 1,750 m
LOCATION
Cerro Blanco is located in northern Chile approximately130 km southeast of the coastal port city ofAntofagasta, and in a similar geological setting to, andapproximately 200 km south-southwest of, the Spence(BHP) and Sierra Gorda (KGHM & Sumitomo) coppermines. The reader is cautioned that there is noevidence to date that a comparable mineral resourcecould be found at Cerro Blanco.
The property is flanked to the southwest by Revelo’slow-sulphidation, epithermal gold-silver project at LasPampas, and lies some 23 km southwest of YamanaGold’s El Peñon gold-silver mine.
OWNERSHIP
Cerro Blanco consists of about 6,500 Ha of 100% ownedtenement comprising both exploration and miningconcessions.
The property is subject to an underlying 1% NSRRoyalty on production of all metals.
STATUS
Revelo is actively looking for a partner to financeexploration of the Cerro Blanco property.
GEOLOGY AND DEPOSIT TYPE
Cerro Blanco lies within the Paleocene volcanic belt ofnorthern Chile that hosts some of the most importantcopper deposits in the country, such as Cerro Colorado(BHP Billiton), Spence (BHP Billiton), Sierra Gorda(KGHM & Sumitomo) and Relincho (Teck-Goldcorp).
The property is also situated along trend andapproximately 23 km to the southwest of the importantEl Peñon and Fortuna mines (Yamana Gold), whichexploit a series of high-grade, low-sulphidation,epithermal gold and silver veins associated with theDominador Fault Zone.
Cerro Blanco (previously part of a consolidatedproperty including Cerro Buenos Aires and Las Pampas,now carved out into separate projects) consists of asmall hill displaying characteristics of the upper parts ofa porphyry copper system, surrounded by extensivepampas filled with post-mineral gravels and mud flows.
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Cerro Blanco
CERRO BLANCO
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Hydrothermal alteration at Cerro Blanco is dominatedby silicification together with a western advancedargillic assemblage of alunite + pyrophyllite + kaolinite+/- dickite, and a more sericite dominated easternalteration assemblage.
Although surface outcrops are affected by supergeneoxidation and leaching giving rise to abundantsupergene clays, hematite/jarosite, and supergenealunite and gypsum (which has developed restrictedpoddy-like gypcretes), the alteration assemblage wouldplace the current erosional levels at about the base ofthe lithocap to a porphyry copper system.
This interpretation is strengthened by the identificationof “wormy” quartz veining within a pyrophyllite +/-kaolinite matrix in outcrop, particularly on the easternside of the hill, which has been described in severallocalities (e.g. Yanacocha and Tantahuatay) as being atransitional texture between the epithermal andporphyry environments. Minor surface geochemicalsampling (soils) indicates anomalous arsenic andbismuth, also suggesting a base of lithocapenvironment.
Cerro Blanco represents a porphyry copper (± Mo ± Au)system, currently exposed at the upper-porphyry toepithermal levels, probably representing the base of alithocap overlying the proposed porphyry coppertarget(s). Potential for high-sulphidation, epithermalcopper-gold also exists.
A significant magnetic high anomaly partially underlaysthe Cerro Blanco hill and a covered area to the west andnorth. The anomaly is divided into two lobes, and isapproximately 3 km to 4 km in diameter. The magneticfeature likely represents a magmatic-intrusive centrethat is in some way related to the hydrothermalalteration seen at surface, and may indicate either aprograde, hypogene porphyry copper core at depth, ora magnetic intrusion (batholith?), or a combination ofthe two. Other, smaller magnetic features beneath thesurrounding and extensive post-mineral coveredpampa, are also of interest as possible porphyry copperrelated targets.
Limited drilling (~630 m – 2 RC holes) on the Cerro
Blanco hill has cut porphyry-style alteration, butalteration zonation must be better understood, anddeeper drilling contemplated. Drilling in the coveredpampa areas, likely focused on the various magneticanomalies, must also be contemplated,
Cerro Blanco thus corresponds to an eroded lithocapdeveloped above a subvolcanic porphyry intrusiveenvironment, largely obscured by post-mineral depositsin a large pampa.
EXPLORATION
Significant portions of the property are characterizedby large, post-mineral, gravel-filled pampas, with themain outcrops located on the approximately 1 kmdiameter Cerro Blanco hill.
Previous exploration activities to date have includedgeological mapping of outcropping areas; wide-spacedsurface geochemical sampling surveys of colluvialdeposits and soils (talus fines) across large parts of theproperty; minor rock chip sampling; Heli-bornemagnetics survey and Heli-borne TEM survey; oneshort IP line; detailed spectral analysis of talus finessamples and drill chip samples for clay mineralmapping; and preliminary reconnaissance drill testingin two holes (632 m of reconnaissance RC drilling wascompleted in 2008 in the outcropping area).
A NI 43-101 compliant Technical Report for theneighbouring Las Pampas project was completed inOctober 2014, and included information for the CerroBlanco and Cerro Buenos Aires project areas (alloriginally part of the consolidated Las Pampas project).The report is filed on SEDAR and is posted on the LasPampas project page of the Revelo website.
INFRASTRUCTURE
Cerro Blanco is easily accessed, being located a shortdistance from the Pan-American Highway some 2.5hours’ drive from either the port cities of Antofagastaor Taltal. A new high-tension power line has beeninstalled alongside the main road. The property issituated at modest altitudes of 1,700 m to 1,800 m.
CERRO BLANCO
Qualified Person
Dr. Demetrius Pohl, PhD., Certified Professional Geoscientist (CPG), an independent consultant, is the Company's QualifiedPerson for the purposes of National Instrument 43-101 Standards of Disclosures for Mineral Projects of the Canadian SecuritiesAdministrators, and is responsible for the accuracy of, and has verified the technical information in, this project summary, andhas approved its written disclosure.
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REGIONAL GEOLOGY MAP
CERRO BLANCO
Cerro Blanco
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CERRO BLANCO – SATELLITE IMAGE – SHOWING NEIGHBOURING PROJECT AREAS
CERRO BLANCO
Cerro Blanco
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CERRO BLANCO – SATELLITE IMAGE
CERRO BLANCO
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CERRO BLANCO – LOCAL GEOLOGY
CERRO BLANCO
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CERRO BLANCO – HELI-BORNE MAGNETICS – ANALYTIC SIGNAL OF TMI
CERRO BLANCO
Approximate limit of altered outcrops
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GENERALISED MODEL FOR MAGNETIC ANOMALIES & PORPHYRY COPPER LITHOCAPTARGET
CERRO BLANCO
