Mr. Eric Edwards reports
TMI COMPLETES STRUCTURAL CONTEXT ANALYSIS ON CENTRAL JUMBO WITH DRILL TARGETS PROPOSED AT GOLD SPRINGS PROJECT
Trimetals Mining Inc. has completed a structural context analysis identifying five prospective drill target areas in the central portion (Central Jumbo) of the significant Jumbo trend at its flagship Gold Springs project in the Western United States.The company will use the analysis to support further gold exploration and future drilling at Gold Springs.
The company engaged SRK Consulting (Canada) Inc. from Toronto to investigate the structural controls for gold mineralization within the Central Jumbo area, between the North Jumbo and South Jumbo resource zones.The North and South Jumbo zones lie within a defined 5.5-kilometre-strike of the Jumbo trend in Utah in the eastern portion of the Gold Springs project.
Dr. Antoine Cate of SRK produced the Central Jumbo structural report for the company based on interpretation from a site visit to key outcrops and evaluating structural geology, which were used to define the five drill target areas.The company believes that prospective gold mineralization exists in Central Jumbo and that an improved understanding of the fault structures pervasive throughout the area will greatly assist in future drill targeting. Dr. Cate's work will assist in this targeting.
Highlights of the SRK report:
Gold mineralization is controlled and bounded within two regional north-south-trending fault lines that extend through the extent of the Jumbo trend;Extensional basin and range type faulting generally dominates and results in the regional north-south-trending control structures.
Eric Edwards, president and chief executive officer of the company, said:"An understanding of the structural setting and controls within the Jumbo trend is vital as we move forward with exploration and work to potentially connect the mineral resource over the undrilled two km zone between Central Jumbo and South Jumbo (also known as Etna).We believe that the gold mineralization through North Jumbo to South Jumbo may be connected and also extended to the north and south.With a robust geologic model and scientific theory of faulting sequence, relative movement and subsequent mineralizing events that have occurred at Central Jumbo, we can move forward to identifying the shifted resource blocks."
Mr. Edwards continued: "The SRK Consulting Group is widely recognized for their knowledge and experience in conducting detailed structural examinations of mineral deposits.We are confident that we have the foundation model that provides high-quality drill targets and can be refined from drill testing.As I have said previously, we are working toward our goal to identify 3.0 million oz of gold in mineral resources."
Summary and conclusions from the SRK report
SRK was commissioned by the company to investigate the structural controls on gold mineralization at Central Jumbo within the Jumbo trend at the Gold Springs project. The Gold Springs project is a low sulphidation epithermal exploration-stage prospect hosted in volcanic rocks in an extensional structural environment and a collapsed caldera setting, located in western Utah and eastern Nevada. Gold Springs has hundreds of old mine workings from six decades of historical high-grade gold production.Field observations and data analysis allow Dr. Cate to make the following interpretations:
Auriferous breccias having north-south to north-northwest-south-southeast orientations and subvertical plunge are consistent with east-west extension. Auriferous shoots are oriented north-south to north-northwest-south-southeast and have shallow plunges, which is consistent with east-west extension.A stress system corresponding to an east-west extension results in north-south-striking normal faults (north-south veins), east-west-striking dip-slip faults, and a conjugate, or crosscutting, system of northwest-southeast right lateral and northeast-southwest left lateral strike-slip faults. Under the proposed syn-mineralization stress regime, auriferous shoots in north-south faults are subhorizontal or shallow and are located in the steepest plunging sections of the faults; auriferous shoots in northwest-southeast and northeast-southwest faults are subvertical or steep and are located in bends within the faults.The general shape of the Jumbo trend suggests a dominantly left lateral strike-slip setting as interpreted in the GRE (2017) structural report. This interpretation is consistent with field observations of, and with displacement, observations on fault planes. This suggests that strike-slip displacement occurred prior to the mineralization, since no strike-slip postmineralization displacement was observed on north-south faults. Gold mineralization was likely emplaced in a pre-existing fault system that was reactivated as a syn-mineralization extensional system.Postmineral breccias containing fragments of differing composition are locally present in auriferous zones.The highest-grade auriferous veins and breccia swarms are oriented north-south and north-northwest-south-southeast.Highest gold grades are associated with multiple brecciating/veining events, silicification, and wide and strong sericite and clay alteration haloes.The Central Jumbo/State section area is less intensely altered at surface than the South Jumbo/Etna and North Jumbo zones. This suggests lower volumes of mineralizing fluids circulated through the State section area at the current level of erosion.
Dr. Cate of SRK earned a doctoral degree in Earth sciences from the National Institute of Scientific Research (INRS-ETE in Quebec, Canada), a master of science and a bachelor of science, both in geology, from the Institut Polytechnique LaSalle Beauvais. He previously worked as an exploration geologist for Teck Resources in Ireland. As a PhD student, he worked on the Lalor volcanic massive sulphide deposit in Manitoba and has experience with various types of deposits. He was part of a team that won second place in Integra Gold's Gold Rush Challenge in 2016, regarding exploration targeting at Integra's Lamaque project in Val d'Or, Que.
Other business updates
Turning to the Escalones copper-gold project in Chile, Mr. Edwards stated: "We continue to see interest from prospective, high-quality potential partners for our Escalones project.The process of evaluation of a value-accretive partnership is ongoing to advance the Escalones project more rapidly and contribute value to TMI shareholders by combining efforts in a potential partnership."
In other matters, regarding the international arbitration case on the company's former Bolivian asset, the company anticipates that a ruling of the International Court of Arbitration may be issued in the coming months.
About Trimetals Mining Inc.
Trimetals Mining is a growth-focused mineral exploration company creating value through the exploration and development of the near-surface Gold Springs gold-silver project in mining-friendly Nevada and Utah.
Qualified person
The qualified person on the Gold Springs project is Randall Moore, executive vice-president of exploration -- North America for the company and he has reviewed and approved the content of this news release. Mr. Moore has more than 40 years of mineral exploration experience and is a professional geologist and registered member of the Society of Mining, Metallurgy and Exploration.
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