Vancouver, B.C., August
31, 2021, Sienna Resources Inc. (“Sienna” or
the “Company”) (SIE—TSX.v, SNNAF—USA, A1XCQ0–Germany) is pleased to announce results from its
recently executed drill program at its 100% owned Bleka Gold Project (the
“Project”) in Norway. Seven drill holes were completed at the Project for a
total of 1,474 meters. Six drillholes were designed to test extensions of the
mineralized “Main Vein” at depth and along strike from the historic Bleka Mine
(see Figure 1). A seventh hole targeted an outcropping quartz vein swarm
located approximately one kilometer from the historic Bleka Mine (the Espelid
target). Sienna’s maiden drill program confirmed extensions of the vein systems
along strike and at depth, and intersected multiple quartz veins with pervasive
quartz-albite alteration halos and elevated gold and copper values.
The historic Bleka
vein was discovered in 1880 and was mined intermittently until 1940 and shows
characteristics typical of greenstone-hosted vein deposits. Sienna’s drilling
intersected the “Main Vein” in each of six drill holes, including intersections
147 meters below the historic workings (as seen in DH-BLE-01) and 40 meters
further along strike of the workings (as seen in DH-BLE-05). Notable intercepts
include 1.7 g/t Au over 0.8 meters at a depth of 122.1 meters in DH-BLE 05,
0.21 g/t Au with 0.30% Cu over 0.15 meters at 60 meters depth in DH-BLE-02, and
0.25 g/t Au with 0.45% Cu over 0.28 meters at 24.1 meters depth in DH-BLE-03.
Gold mineralization at Bleka is hosted by muti-stage
quartz veins with locally intense albite-carbonate alteration of wall rocks.
Gold is associated with bismuthinite, chalcopyrite and pyrite according to
historic accounts from mining activities and as seen in Sienna’s drill holes.
Although it had been mined for many decades, little to no recent exploration
has been conducted on the Project area. A drill program had been planned for
the Project in the late 1990’s, but was not executed, and no other records of
exploration drilling have been located by the Company. To its knowledge, Sienna
is the first company to drill the Project in the past 40-50 years. The company is now formulating a plan for the
next phase of operations on the Bleka project.
Notes on sampling
A total of 151 samples were cut at the ALS
laboratory in Mala, Sweden where the samples were crushed and pulverized before
they were shipped to be analyzed at the ALS laboratory in Ireland. The samples
were analyzed with a 4-Acid digestion and multi-element mass spectrometer
analysis. Gold was determined by fire-assay methods. Sampling was done in
accordance with NI 43-101 protocols. Regular duplicate samples are taken and
regular check samples such as blank material as well as certified reference
material is inserted into the samples stream.
Figure 1: Location of drill holes and intercepts in the vicinity of
the historic Bleka Mine
About Sienna Resources Inc.
Sienna Resources is focused on exploring for and developing high-grade
deposits in politically stable, environmentally responsible and ethical mining
jurisdictions. Sienna is partnered with a New York Stock Exchange-listed mining
company on two separate projects in Scandinavia including the past-producing
Bleka and Vekselmyr orogenic gold projects in southern Norway which are both
greenstone-hosted gold systems, and the Kuusamo platinum group elements (PGE)
project in Finland directly bordering the LK Project being advanced by
Palladium One Mining Inc. In North America, Sienna’s projects include the
Marathon North platinum-palladium property in Northern Ontario directly
bordering Generation Mining Ltd.’s 7.1-million-ounce palladium-equivalent
Marathon deposit. Sienna also has the Clayton Valley Deep Basin Lithium Project
in Clayton Valley, Nev., home to the only lithium brine basin in production in
North America, in the direct vicinity of Albemarle Corp.’s Silver Peak deposit
and Tesla Motors Inc.’s Gigafactory. Management cautions that past results or
discoveries on properties in proximity to Sienna may not necessarily be
indicative to the presence of mineralization on the company’s properties.
technical contents of this release were approved by Greg Thomson, PGeo, a
qualified person as defined by National Instrument 43-101.
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Neither the TSX Venture Exchange nor its Regulation
Services Provider (as that term is defined in the policies of the TSX Venture
Exchange) accepts responsibility for the adequacy or accuracy of this press
 Insufficient drilling and modelling has been completed to
definitively determine the true thicknesses of the intercepts. The reported
intercepts are as seen and measured in drill core and are drill intercept