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InZinc Intersects 6.8m of 16.5% Zinc

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InZinc Intersects 6.8m of 16.5% Zinc

 

 

 

 

 

InZinc Mining Ltd. (TSX-V: IZN) (OTC US: LTHIF) is pleased to report  results of the Phase 1 drill program at the Company’s 100% owned West Desert zinc-copper project in western Utah.  The Company completed the first phase of drilling with five deep holes totaling 3,500m. The drill program focused on exploration and expansion of the large zinc resources outlined in the 2014 Preliminary Economic Assessment.

 

 

Highlights

 

  • As previously disclosed, drill hole WD18-01, drilled west of the existing deposit, intersected a thick interval of 15.4m of 6.3% Zn, 0.1% Cu and 67 g/t In at 340m below surface and approximately 60m west of the known boundary of the existing sulphide resources.
  • WD18-05, drilled below WD18-01, intersected shallow, high grade sulphide mineralization over 6.8m averaging 16.5% Zn, 0.3% Cu, 60 g/t In and 14 g/t Ag at a downhole depth of 142m.  The hole was drilled to the west of existing sulphide resources.
  • WD18-02, drilled to the east of the existing resources and 400m to the east of WD18-01, intersected multiple, narrow high grade zones including 1.5m of 11.6% Zn, 0.1% Cu, 4 g/t In and 53 g/t Ag and established the eastward expansion potential of the CRD (Deep) zone by 175m to the east.
  • WD18-03, drilled 1.27 km to the east of WD18-01, intersected high grade silver mineralization 320m beneath the historic Utah silver mine with a narrow intercept of 0.3m of 1,402 g/t Ag, 1.2g/t Au and 44.5% Pb.
  • WD18-04, drilled 120m to the west of WD18-01, intersected 1.8m of 8.6% Zn and 339 g/t In at 206.7m downhole in a thick oxidized interval suggestive of deeper sulphide mineralization below. 

 

 

“Our goal for the Phase 1 program was to explore the wide range of target areas and styles of mineralization occurring across the property to determine a clear focus for Phase 2 programs.  The shallow and high grade zones intersected to the west of the WD deposit demonstrate that the limits of this important mineralization have yet to be determined,” stated Wayne Hubert, CEO of InZinc.  “While the drilling to the east intersected numerous narrow high grade zones that will require follow up in the future, the Phase 2 programs will now target the high grade western expansion of the deposit prior to launching advanced economic studies. The next phase of drilling is being planned and permitted.”

 

 

Exploration Drill Holes to the West of the Existing Resources

 

 

Three holes, WD18-01, WD18-04 and WD18-05, were drilled to the west of the existing West Desert resources to assess the potential for higher grade zinc, copper and associated indium in the shallow western portion of the Main zone of the WD deposit. Large intersections of high grade zinc and copper in sulphide were outlined between 150m and 350m below surface in holes WD18-01 and WD18-05.  This area of interest, also evident further to the west in hole WD18-04, is a priority target for further drilling.  Drill hole collars are shown on the attached plan view map, Figure 1.

 

Table 1:  Drill hole intersections to the West of existing resources (5% Zn and 1% Cu cutoffs)

 

Drill Hole
5% Zn cutoff
From
 (m)
To
(m)
Interval
(m)
Zinc
(%)
Copper
(%)
Indium
(ppm)*
Silver
(ppm)*
Oxide/
Sulphide
WD18-01** 79.4 81.4 2.0 11.8 0.5 73 2 oxide
  148.4 153.0 4.6 0.02 2.2 21 10 sulphide
  237.0 240.0 3.1 6.4 0.2 95 3 sulphide
  299.9 303.0 3.0 5.9 1.6 265 2 sulphide
  326.0 341.4 15.4 6.3 0.1 67 14 sulphide
WD18-04 206.7 208.5 1.8 8.6 0.1 339 oxide
WD18-05 141.5 148.3 6.8 16.5 0.3 60 14 sulphide
  272.4 276.9 4.6 2.2 12 23 sulphide
Note: True widths are not exactly known but are estimated at 70 to 100% of drilled interval.  HQ diameter core with imperial rods utilized.  * ppm = grams per tonne.  **WD18-01 released on June 6, 2018.

 

 

WD18-05 was drilled beneath WD18-01 to test the down-dip extension of several intersections, including the previously reported shallow high grade lens with 2m of 11.8% Zn, 0.5% Cu and 73 g/t In.  At approximately 150m below surface the drill hole intersected high grade sulphides over a 6.8m interval averaging 16.5% Zn, 0.3% Cu, 60 g/t In and 14 g/t Ag.  Phase 2 exploration will consider 50m step outs along strike and to depth to further delineate the high grade lens.  The steep angle of WD18-05 and down-hole deviation may have prevented a complete test of the deeper intersections in WD18-01.  See the attached cross section, Figure 2.

 

 

WD 18-04, drilled 120m to the west of WD18-01, intersected the targeted horizon at shallow depths and encountered a thick (41m), highly oxidized zone containing greater than 50% iron. Visible copper and zinc oxides indicate oxidation and leaching of zinc and copper sulphide mineralization.  Phase 2 exploration will include plans to drill beneath this oxidized zone to intersect the underlying sulphides, similar to what was accomplished with WD18-05.

 

 

Exploration Drill Holes to the East of the Existing Resources

 

 

Exploration to the east of the existing West Desert resources was tested with two deep holes, WD18-02 and WD18-03.  The holes were drilled to explore silver-rich zinc mineralization previously intersected in both the upper east portion of the resources and 650m east, below the past-producing Utah silver mine. Both holes also tested deeper targets for extensions of copper- zinc mineralization at the CRD (Deep) zone of the WD deposit and below the Utah mine.  Holes WD18-02 and WD18-03 intersected narrow high grade zones that will require follow up in the future.  Drill hole collars are shown on the attached plan view map, Figure 1.

 

Table 2:  Drill hole intersections to the East of existing resources at a 5% Zn cutoff

 

Drill Hole
5% Zn cutoff
From
 (m)
To
(m)
Interval
(m)
Zinc
(%)
Copper
(%)
Indium
(ppm)*
Silver
(ppm)*
Lead
(%)
WD18-02 312.7 314.2 1.5 5.5 5 54
  326.7 328.2 1.5 11.6 0.1 4 53
  701.6 703.1 1.5 9.4 0.1 6 4
  721.6 722.5 0.9 9.1 1.2 108 68
  726.3 728.1 1.8 9.1 0.3 14 19
WD18-03 627.7 628.0 0.3 0.2 0.2 1402 44.5
 

Note: True width estimated at 80 to 100% of drilled interval. True widths are not exactly known but are estimated at 70 to 100% of drilled interval.  HQ diameter core with imperial rods utilized. * ppm = grams per tonne.

 

 

WD18-02, explored the eastern edge of the WD Deposit and intersected multiple narrow zones of mineralization. Several deeper intersections, between 701m and 728m downhole, represent the extension of the CRD (Deep) zone. The previous known limit of the CRD (Deep) zone is located 175m west of these intersections and the intervening space is open for future resource expansion.

 

 

WD18-03 intersected high grade silver mineralization 320m below the historic Utah silver mine with a narrow 0.3m intersection grading 1.4 kg per tonne silver and 44.5% lead.  This drill hole has been left open for possible re-entry for directional drilling of additional targets.

 

Table 3:  Drill hole coordinates

 

Drill Hole Easting Northing Elevation
(m)
Dip Azimuth Depth
(m)
WD18-01 288743 4415250 1340 -75 180 702
WD18-02 289170 4415389  1390 -55 180 748
WD18-03 289978 4414987 1581 -65 200 933
WD18-04 288626 4415260 1336 -75 180 440
WD18-05 288738 4415248 1340 -82 180 457
 

 

 

Photos accompanying this announcement are available at

http://www.globenewswire.com/NewsRoom/AttachmentNg/d0159777-739a-4441-b896-6d3afddeeacf


http://www.globenewswire.com/NewsRoom/AttachmentNg/b5fa8bca-60ab-42f4-a78b-d6651da383d5

 
 

West Desert – 2014 Preliminary Economic Assessment – Underground Sulphide Resources

 

 
Cut-off
($GMV/t)
Category Tonnage
(Mt)
Zn
(%)
Zn
(Mlbs)
Cu
(%)
Cu
(Mlbs)
In
(g/t)
In
(t)
Magnetite
(%)
Magnetite
(Mt)
50 Indicated 13.0 2.16 691.3 0.23 65.1 33 433 48 6.2
50 Inferred 46.0 1.76 1,781.0 0.22 224.6 24 1,102 48 22.0
 

April 2014: base cases at gross metal value (GMV) cutoff = US$50; GMV based on 100% recovery and Zn=$1/lb, Cu=$3/lb, Magnetite=$115/t and In=$600/kg.

 

 

About InZinc

 

 

InZinc is focused on growth in zinc through exploration and expansion of the advanced stage West Desert project (100%) in Utah and exploration of the early stage Indy project (100% option) in British Columbia. West Desert has a large underground resource open for expansion and has district scale exploration potential. A West Desert preliminary economic assessment completed in 2014 forecasted 1.6 billion pounds of zinc production over 15 years.  Byproducts would include copper, magnetite and indium, the latter being identified by the United States in 2017 as a critical mineral.  The West Desert deposit may represent the one of the highest grade, known resources of indium in the United States (U.S. Geological Survey Professional Paper 1802-1).

 

Indy comprises both near surface exploration targets and regional discovery potential. Both zinc projects are well located with easy access and existing infrastructure.

 

Posted August 27, 2018

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