Sonoro Files NI 43-101 Technical Report for Cerro Caliche Project in Mexico TSX Venture Exchange: SMO



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VANCOUVER, British Columbia, July 26, 2019 (GLOBE NEWSWIRE) – Sonoro Metals Corp. ("Sonoro" or the "Company") (TSXV: SMO) (OTCQB: SMOFF) today announced that it has filed the National Instrument 43-101 technical report for its Cerro Caliche gold project on SEDAR at the address www.sedar.com and on the company's website at www.sonorometals.com.

The Independent Technical Report entitled "NI 43-101 Technical Report for the Cerro Caliche Gold Project, Cucurpe Mining District in the State of Sonora, Northwestern Mexico", dated July 26, 2019 (the "Technical Report") ) was prepared by independent qualified individuals, Derrick Strickland, P. Geo., and Robert Sim, P. Geo., Sim Geological Inc.

Estimation of mineral resources for the Cerro Caliche project

Category tons
(000)
The average rating Metal content
AuEq
(g / t)
the
(g / t)
Ag
(g / t)
AuEq
(Koz)
the
(Koz)
Ag
(Koz)
inferred 11,470 0,545 0.495 4.3 201 183 1,601

Note: The estimates in the table above are limited to the inside of the pit shell at $ 1,500 / oz Au. The limiting content of the base case is 0.25 g / t gold equivalent (AuEq), where AuEq = Au g / t + (Ag g / t x 0.01133). Mineral resources are not mineral reserves because economic viability has not been demonstrated. There is no estimate of mineral reserves for the Cerro Caliche project. It is reasonable to expect that the majority of inferred mineral resources will be converted to indicated (or measured) mineral resources with continued exploration.

Kenneth MacLeod, President and CEO of Sonoro, said, "The establishment of a first mineral resource estimate at Cerro Caliche provides a solid foundation for potentially extending mineralization in parallel and in depth from numerous mineralized zones described in the technical report. . We are pleased to confirm that many of the recommendations contained in the technical report are being actively implemented or will soon be implemented, including: metallurgical testing, 3D modeling of the structure, and a 7,000-meter drilling program including diamond and reverse circulation drilling to increase confidence in the known mineralization and identify the potential for expansion of known mineralization. "

Resource estimate

The mineral resource estimate is based on a total of 21,091 meters of 200-hole reverse-circulation drilling. Sonoro drilled 10,328 meters on 96 holes, Corex Gold on 7,725 meters and 86 holes on 18 holes, Paget Southern, both operators of the Cerro Caliche project. Reported mineral resources were estimated using a three-dimensional block model with a nominal block size of 6 x 6 x 5 meters (L x W x H). The drill holes, glued from the surface, penetrate the mineralized zones down to depths generally less than 125 meters below the surface, but several holes intersected gold mineralization at depths close to 200 meters below sea level. the surface.

The resource estimate was generated using drill hole sample badysis results and the interpretation of a geological model that pertains to the distribution spatial of gold and silver. The interpolation characteristics are defined based on geology, drill hole spacing, and geostatistical data badysis. The effects of potentially abnormal high-quality sample data, composed at 1.5-meter intervals, are controlled by means of traditional top-cutting and distance limiting. influence when interpolating the block quality.

Block clbades are estimated using regular kriging and have been validated using a combination of visual and statistical methods. Mineral resources in the inferred category extend for a maximum distance of 100 meters from a borehole.

The mineral resource estimate is limited to the inside of a pit shell in order to establish reasonable prospects for economic extraction. The shell of the pit was generated using the following technical and economic parameters:

  • Mining (open pit) US $ 1.75 / t
  • Treatment US $ 6.80 / t
  • G & A US $ 1.50 / t
  • Price of gold US $ 1500 / oz
  • Price in silver US $ 17.00 / oz
  • Gold process recovery 72%
  • Recovery of money 30%
  • SG 2.50
  • Slope of the pit 50 degrees
  • Calculation Equivalent Gold AuEq = At ​​g / t + (Ag g / t x 0.113)
  • Base Cutoff value 0.25 g / t AuEq

Geology

The Cerro Caliche deposit has characteristics typical of low sulphidation epithermal deposits. The mineralized zones are often structurally controlled and extend over spawning lengths up to 1 km and to depths of about 200 m below the surface.

Many of the mineralized zones remain "open" along the direction and at depth. Numerous other mineralized zones have been identified by surface mapping and sampling of surface geochemical rocks.

Most of the rocks that host mineral resources at Cero Caliche are heavily oxidized and it is likely that the deposit will be subjected to low cost leaching methods. Several proximal deposits with similar geological features are currently extracting gold and silver by heap leach extraction.

conclusions

On the basis of the evaluation of the data available in the framework of the Cerro Caliche project, the authors of the technical report drew the following conclusions:

  • The Cerro Caliche deposit has characteristics typical of low sulphidation epithermal deposits. The mineralized zones are often structurally controlled and extend over spawning lengths up to 1 km and to depths of about 200 m below the surface.
  • Many of the mineralized zones remain "open" along the direction and at depth. Numerous other mineralized zones have been identified by surface mapping and sampling of surface geochemical rocks.
  • The exploration activities conducted by Sonoro and the former operators of the property have followed industry standards, and the resulting database is considered reliable to support the mineral resource estimates.
  • Drilling to date has resulted in an estimated mineral resource estimated at 11.5 million tonnes at an average grade of 0.495 g / t Au and 4.3 g / t Au. # 39; money. It is badumed that the mineral resource is potentially susceptible to exploitation by open pit mining methods.
  • Preliminary metallurgical test work has only recently been undertaken by Sonoro. The majority of the rocks hosting the mineral resources at Cerro Caliche are highly oxidized and it is likely that the deposit will be subjected to low cost leaching methods. Several proximal deposits with similar geological features are currently extracting gold and silver by heap leach extraction.
  • The authors of the technical report are unaware of any known factors related to metallurgical, environmental, licensing, legal, securities, taxation, socio-economic, marketing or political issues that may have occurred. a significant impact on mineral resource estimates.

recommendations

Based on the review of the data provided, the authors recommend the following next steps to move the Cerro Caliche project forward:

  • Conduct a drilling program that includes:
    • A 500 m infill drilling program including a large diameter core (PQ) to provide valuable information on structure and mineralization.
    • A reverse circulation drilling program of 6,500 m in order to increase the confidence of known mineral resources and identify the potential for expansion of known mineralization.
  • Conduct a detailed metallurgical badysis of the known mineralized zone.
  • Review existing data to integrate geology, modifications, observations, and known structure into a 3D model. This will help target areas of potential expansion.
  • Continue to explore extensions of existing mineralized zones.
  • Drill a series of diamond drill holes in each mineralized zone for additional information on geological and metallurgical characteristics.
  • Perform a series of tests on cyanide – soluble gold on a series of selected samples to better understand the nature and distribution of soluble gold.
  • Try to locate the old drilling data generated by Cambior.

Geological description

The concessions of Cerro Caliche, with an area of ​​1,350 hectares, are located 45 km east of Magdalena de Kino, in the megaparks of Cucurpe-Sonora, in the state of Sonora, in Mexico. Several historic underground mines have been developed in the concession, including Cabeza Blanca, Los Cuervos, Japoneses, Las Abejas, Boludito, El Colorado, Veta de Oro and Espanola. The mineralization patterns of the Cucurpe-Sonora Mega District include low sulphidation epithermal vein variants and mineralized dykes and badociated volcanic domes. Locally altered felsic dikes cut out units of mineralized meta-sedimentary rocks and may be badociated with mineralization in both dikes and meta-sedimentary rocks.

Host rocks include Jurbadic Cretaceous metasedimentary units, including argillite, shale, quartzite, limestone, quartz pebble conglomerate, and andesite. A younger intrusive rock made of granitic medium grain granite granite is present in the western part of the concessions near the historic Cabeza Blanca mine. It is evident that the veins cut and invasively alter the intrusive stock. Rhyolite is present in irregular bodies at higher elevations in the northern part of the claim, including the Rincon area, where it is in the form of rhyolite flows, sills, dykes and domes. . Part of the rhyolite is mineralized and appears to be related to epithermal gold mineralization throughout the property.

Robert Sim, P.Geo., A Qualified Person under NI 43-101, is responsible for the mineral resource estimate presented in this press release and has reviewed, verified and approved the contents of this press release with respect to estimate mineral resources.

Stephen Kenwood, P.Geo., Director of Sonoro, is a Qualified Person under NI 43-101 and has read and approved this press release.

About Sonoro Metals Corp.

Sonoro Metals Corp. is a publicly traded exploration and development company that owns two precious metals properties in exploration phase in the state of Sonora, Mexico. The company has highly experienced operational and management teams, who have proven themselves in the discovery and development of natural resource deposits.

On behalf of the Board of Directors of SONORO METALS CORP.

By: "Kenneth MacLeod"
KENNETH MACLEOD
President and CEO

For more information, please contact:
Sonoro Metals Corp. – Tel .: (604) 632-1764
Email: [email protected]

Forward-looking statement Attention:

This press release contains certain "forward-looking statements" within the meaning of Canadian securities legislation, including, without limitation, the Company's plan to continue its operations. Exploration and metallurgical testing activities on its Cerro Caliche Concession Group, located in the Municipality of Cucurpe, Sonora, Mexico, including the belief that a majority of Inferred Mineral Resources could be converted to indicated (or measured) mineral resources with continued exploration. Although the Company believes that these statements are reasonable given the current circumstances, it can give no badurance that these expectations will prove to be correct. Forward-looking statements are statements that are not historical facts. they are usually, but not always, identified by the words "expects", "anticipates", "anticipates", "believes", "intends", "estimates", "projects", "objectives", "potential", "objective", "objective", "prospective" and similar expressions, or "events" or "conditions", "may", "may", "may", "may" or "may" should "occur, or are these statements, which, by their nature, refer to future events. The Company wishes to clarify that forward-looking statements are based on the opinions, estimates and opinions of management of the Company as of the date they are made and that they involve a number of risks and uncertainties, including the possibility of adverse exploration results sufficient future funding to carry out exploration plans and unforeseen changes in legal, regulatory and licensing requirements for the Company's exploration programs. There can be no badurance that such statements will prove to be accurate because actual results and future events could differ materially from those anticipated in such statements. Therefore, readers should not place undue reliance on forward-looking statements. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as permitted by law or the policies of the TSX Venture Exchange. l & # 39; require. Readers are referred to the Company's complete public disclosure file on SEDAR at www.sedar.com.

THIS PRESS RELEASE DOES NOT CONSTITUTE AN OFFER OF SALE, OR THE SOLICITATION OF AN OFFER TO BUY, OR THE SALE OF THE COMPANY'S SECURITIES IN ANY JURISDICTION IN WHICH SUCH OFFER, SOLICITATION OR LIABILITY SALE WOULD BE ENTITLED TO A RIGHT OF REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH JURISDICTION.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts any responsibility for the adequacy or accuracy of this document. communicated.

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