Mr. Curt Hogge reports
MINERAL MOUNTAIN INTERSECTS 2.12 GPT OVER 20.0 METRES EXTENDS STEEPLY PLUNGING HIGH GRADE SHOOT TO 230 METRES DOWN PLUNGE
Mineral Mountain Resources Ltd. and its subsidiary Mineral Mountain Resources (SD) Inc. have completed a total of six of the planned 12 NQ diamond drill holes, totalling 2,155 metres,on the company's Standby mine target in the Rochford district in the Black Hills of South Dakota. The analytical results for the first three holes, ST18-001, ST18-002 and ST18-003, were released on May 3, 2018. Drill hole ST18-006 was successful in intersecting the steeply plunging high-grade shoot that hosts the Standby minedeposit 230 m below surface and 50 m down plunge of historical drill hole BLG-UG3 which graded 3.36 grams per tonne Au over 24 metres. This high-grade shoot occurs within a 34 m wide classic Homestake-style quartz-chlorite breccia with silica flooding, 3 to 15 per cent coarse-grained arsenopyrite and 3 to 7 per cent pyrrhotite. Hole ST18-006 grades 2.12 g/t Au over 20 metresincluding 4.39 g/t Au over 2.5 m and 5.24 g/t Au over 1.5 m (see 3-D isometric view and drill hole locations posted on the company's website). (Note: Pictures of arsenopyrite-bearing core from ST18-006 have been posted on the company's website.)
Drill hole ST18-004, which recorded low gold values, wandered off its planned course and did not intersect major intervals of the Rochford iron formation. Hole ST18-005, the deepest drill hole in this campaign to date at 352.3 m, intersected 1.50 g/t Au over 5.7 metres. This hole did not target the Standby mine high-grade shoot. Upon completion of ST18-005, this hole was geophysically probed thus providing a strong vector toward the 34 m wide Standby mine shoot.
Presently, drill hole ST18-007 is in progress and is designed to test both a second southeasterly trending mineralized structure averaging 30 m in width occurring west of the Standby mine high-grade shoot (referred to as the West Limb structure) and the down plunge extension of the high-grade shoot referenced above approximately 100 m down plunge from ST18-006.
PRESENT AND HISTORICAL DRILL HOLES INTERSECTING THE EAST LIMBDrill hole penetrating east Gold mineralized intersection in iron formation Approximate distance of intersectionStandby mineralized shear (progressing down plunge to the southeast)Down plunge from surfacestructureDDH ST18-006 2.12 g/t Au over 20 metresMineral MountainIncl. 4.39 g/t Au over 2.5 metres 230 metres Incl. 5.24 g/t Au 1.5 metresDDH BLG-UG33.36 g/t Au over 24 metres 180 metresHistoric underground DDHDDH- ST18-0051.5 g/t Au over 5.7 metres 300 metresMineral MountainDDH- ST18-004 low gold valuesMineral MountainDDH SM-87 10.23 g/t Au over 3.05 metres1800 metresHistoric Homestake DDH
Curt Hogge, chief geologist for the company, commented: "The 34-metre-wide Homestake-type mineralized core interval in ST18-006 from 149.0 to 183.0 metres down hole, from a visual standpoint, is a classic Homestake-style quartz flooded, intensely altered and locally brecciated iron formation as well as replace-style mineralization in iron formation. The untested potential down dip and down plunge represents a strong compelling target that requires definition drilling."
By comparison, at Homestake, the surface expression of the 9 Ledge upper tail is a 30 m by 15 m area in a road cut, within which the majority of rock samples assay only hundreds of parts per billion ppb Au to one g/t Au, with one higher-grade sample assaying 4.5 g/t Au.However, visible alteration, characterized by quartz veins with moderately to well-developed hydrothermal chlorite selvages and minor sulphide minerals, is locally well developed at the 9 Ledge upper tail position. Consistent ore grade mineralization (about eight g/t Au over five to 10 m widths) in the 9 Ledge does not begin to develop until 1,200 m down plunge (800 m vertical depth) on the 9 Ledge, and the highest Au grades and widths in the 9 Ledge Centroid do not occur until 1,500 m down plunge (1,000 m vertical depth. By comparison, the Au grades and widths encountered in the only very shallow drilling (to 330 m down plunge) to date by the Mineral Mountain on the Standby system, along with the over 30 m widths of intense quartz flooding -- hydrothermal chlorite alteration -- remobilized pyrrhotite -- arsenopyrite alteration, are highly encouraging at Standby.
Qualified persons
The technical information in this news release has been prepared in accordance with Canadian regulatory requirements set out in National Instrument 43-101 and reviewed and approved by Nelson W. Baker, PEng, the president and chief executive officer of Mineral Mountain Resources and a qualified person for this project.All exploration activities at the Rochford project are carried out under the strict supervision of Kevin Leonard, PGeo, also a qualified person for this project.
About Mineral Mountain Resources Ltd. and the Rochford gold project
Mineral Mountain Resources, through its wholly owned subsidiary Mineral Mountain Resources (SD) Inc., is focused on the exploration of its 100-per-cent-owned Rochford gold project situated along the highly prospective Homestake gold belt in the Black Hills of South Dakota, United States.The Rochford project covers approximately 7,500 acres and straddles three major trends of structurally thickened auriferous iron formation that host ledge-type gold mineralization.
Since 2012, the company, through its wholly owned subsidiary Mineral Mountain Resource (SD) Inc., has spent over $9-million (U.S.) in gold exploration in the Black Hills of South Dakota,controls the largest land position in the Rochford greenstone belt and now possesses by far the largest and most comprehensive database for the district in modern day exploration history. The Rochford project is vastly underexplored and has the potential to host district-scale gold discoveries.
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