Tiria moves up the list of Aurania’s gold-silver target ranking

Pathfinder elements for epithermal gold-silver mineralization at Tiria are concentrated in four areas that partially enclose a core of silver-zinc-lead mineralization evident over a 13km trend.  A maximum grade of 710g/t silver and 48% zinc was obtained from a rock-chip sample 0.5m long in the core area (press releases dated November 29, 2018 and September 9, 2019). 

Dr. Jeffrey Hedenquist, a consultant with global experience and expertise in epithermal and porphyry systems, visited the Project in early December 2019 and was impressed by the systematic arrangement of the epithermal pathfinder elements around the elongate central, carbonate-hosted area that contains silver-zinc-lead.  He highlighted similarities with the deposits in the Cerro de Pasco – Colquijirca district in adjacent Peru and recommended that the targets be advanced as a priority.  In addition, field evidence reviewed by Dr. Hedenquist suggests that the level of erosion at Tiria is deeper, and therefore closer to the gold-bearing zone of a typical epithermal system, than at Crunchy Hill and Yawi, which both have features that indicate the preservation of the paleosurface (Figure 1).

Details of the Tiria Targets

The interpreted location of the Tiria targets are illustrated in a generalized model of epithermal systems in Figure 1.  Their main characteristics are as follows:

• Tiria South: new grid-soil sampling shows that epithermal pathfinder elements such as antimony, arsenic, selenium and thallium, are enriched over an area 3km long and 400m wide (Figure 2). The Tiria South target is interpreted to be exposed at the level of antimony enrichment that lies between the land surface as it was at the time of mineralization, and the underlying gold-silver zone in the idealized epithermal target concept illustrated in Figure 1;
• Tiria West: soil sampling along ridge-crests shows gold and silver enrichment over an area of 800m by 400m while silver and zinc enrichment increases 2km to the southeast on the margin of the Shimpia silver-zinc-lead target. Tiria West is therefore interpreted to be transitional from the deep, silver-zinc-lead part of the epithermal towards the gold-silver zone (Figure 1);
• Tiria East is 10km from Tiria South – and both targets lie on the same structure identified from satellite imagery and geophysics (radiometrics). Soil in the Tiria East target is enriched in the same elements as Tiria South, in an area 1.2km along and 300m wide, that is open to the north and to the south along trend of the structure that links Tiria South and Tiria East; and
• Tiria North is defined by enrichment of naturally occurring mercury, antimony and thallium on the margin of silver-zinc-lead mineralization. The mix of pathfinder elements suggest that this target is shallowly eroded – i.e. the gold-silver zone lies at slightly greater depth than in the other targets.

Next Steps

Grid soil sampling has proved to be a highly effective way of defining targets in the Tiria-Shimpia system and is being undertaken by local technicians while the Company’s geological team-leaders map the target areas and determine the location and shape of the target for drilling.  The Company has applied for the water permit required for drilling and the first step of the approval has been granted while the final part is awaited.  Management had previously stated that the Company would consider an early joint venture on the silver-lead-zinc target at Shimpia but, given its possible genetic link with the adjacent epithermal pathfinders, this approach is being reconsidered.

Update on Drilling at Yawi

Bore hole YW007, is being drilled from the same platform as YW003 and YW006 were drilled from.  The hole is currently at a depth of approximately 364m and is planned to a depth of 400m.  

Sample Analysis & Quality Assurance / Quality Control (“QAQC”)

Laboratories: The soil samples were prepared for analysis at ALS Global’s (“ALS”) lab in Quito, or at MS Analytical (“MSA”) in Cuenca, Ecuador.  Analysis by ALS was done in Lima, Peru, and MSA conducted their analyses in Vancouver, Canada.

Sample preparation: Soil samples consisted of approximately one kilogram of clay from the iron-rich “B” horizon at each sample point. The soil samples were dried and subsequently screened through 80 mesh (using screens with apertures of approximately 0.18 millimetres).  A 250 gram (“g”) split of the material that passed through 80 mesh was pulverized to 85% passing 0.075mm and was packaged for shipment to the analytical facility. 

Analytical procedure:  A 0.5g split of the -0.075mm fraction of soil samples underwent digestion with aqua regia, and the liquid was analyzed for 48 elements by ICP-MS. Apart from being analyzed by ICP-MS, gold was also analyzed by fire assay with an ICP-AES finish.   

QAQC: Aurania personnel inserted a certified standard pulp sample, alternating with a field blank, at approximate 20 sample intervals in all sample batches. Aurania’s analysis of results from its independent QAQC samples showed the batches reported on above, lie within acceptable limits.  In addition, the labs reported that the analyses had passed their internal QAQC tests.

Qualified Person

The technical information contained in this news release has been verified and approved by Jean-Paul Pallier, MSc.  Mr. Pallier is a designated EurGeol by the European Federation of Geologists and a Qualified Person as defined by National Instrument 43-101, Standards of Disclosure for Mineral Projects of the Canadian Securities Administrators.

About Aurania

Aurania is a junior mineral exploration company engaged in the identification, evaluation, acquisition and exploration of mineral property interests, with a focus on precious metals and copper.  Its flagship asset, The Lost Cities – Cutucu Project, is located in the Jurassic Metallogenic Belt in the eastern foothills of the Andes mountain range of southeastern Ecuador.

Information on Aurania and technical reports are available at www.aurania.com and www.sedar.com, as well as on Facebook at  https://www.facebook.com/auranialtd/, Twitter at    https://twitter.com/auranialtd, and LinkedIn at  https://www.linkedin.com/company/aurania-resources-ltd-   

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