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InZinc Discovers Shallow High Grades at Indy Project in BC

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InZinc Discovers Shallow High Grades at Indy Project in BC






InZinc Mining Ltd. (TSX-V: IZN) announces the discovery of high grade, shallow mineralization from its first drill program at the Indy zinc project (100% option) located 100km southeast of Prince George in central British Columbia. Results from the eleven-hole drill program (1271m drilled), including intersections from the final six holes, identified a new zone of near surface mineralization called the B-9 zone.


All significant intersections returned, including those previously released (see News Release NR2018-06), are located within 60m of surface.


B-9 Zone 2018 Drilling – Selected Highlights (refer to details in Tables 1 and 2)


Hole IB18-009


  • 12.33% Zn, 2.98% Pb, and 24.46 g/t Ag (14.98% ZnEq) over 6.29m at 60m below surface


Hole IB18-008

  • 5.76% Zn, 0.48% Pb and 3.41 g/t Ag (6.18% ZnEq) over 6.73m at 56m below surface


Hole IB18-002*

  • 4.49% Zn, 1.13% Pb and 7.32 g/t Ag (5.46% ZnEq) over 4.28m at 27m below surface
  • 2.24% Zn, 0.83% Pb and 5.23 g/t Ag (2.95% ZnEq) over 5.38m at 33m below surface
  • 3.50% Zn, 0.66% Pb and 4.59 g/t Ag (4.07% ZnEq) over 4.57m at 37m below surface


Hole IB18-003* (low core recovery)

  • 9.26% Zn, 2.43% Pb and 17.98 g/t Ag (11.38% ZnEq) over 3.05m at 23m below surface


Hole IB18-006*

  • 3.88% Zn, 1.34% Pb and 8.90 g/t Ag (5.03% ZnEq) over 3.99m at 29m below surface


*Previously released.

Note: True widths are unknown. The intersections in IB18-002 are separated by lost core/no recovery. ZnEq calculation: metallurgical studies have not been completed and assumes 100% metallurgical recovery using Zn prices at $1.10/lb., Pb at $.80/lb. and Ag at $15/oz – all $US. 


The first drill program at Indy has been a success with the discovery of shallow mineralization at the new B-9 zone, including high-grade massive sulphide mineralization in holes IB18-009 and IB18-003 which remain open for further exploration. Guided by cost effective soil geochemistry in an area of no surface rock exposure, the exploration drilling provides the first important insights into the distinctive type of mineralization at the B-9 zone and underscores the unique potential of the Indy project.


Emerging Geological Model


The geological characteristics of the B-9 zone (see News Release NR2018-06) are analogous to a distinctive geological setting, termed vent-proximal, within a sedimentary hosted exhalative (Sedex) type depositional environment. Sedex type zinc deposits, the rarer exhalative “cousins” of volcanogenic massive sulphide (VMS) deposits, occur as clusters on a district scale and only within specific ages of sedimentary rock formations referred to as time horizons. The large and well-known deposits occur in the Yukon, northern and southern British Columbia, Australia and southern Africa. The Indy project is underlain by sedimentary formations correlated in age by the Geological Survey of Canada (Struik,1988) to the same time horizons hosting the Sedex deposits of northern British Columbia and the Yukon. With a large claim position (24km strike), new discoveries of shallow mineralization and extensive geochemical anomalies remaining to be tested, the Indy project provides multiple opportunities for new discoveries of this type in an unexplored region of central British Columbia. Indy is readily accessible by road from Prince George, the major hub for transportation and heavy industry in central British Columbia and is located 85km south of the Canadian National Railway.


Peripheral, Large Exploration Targets Now in Focus


To date, three large soil geochemical anomalies with an aggregate length of 3.2km occur on the property (see Figure 1). Drilling at the B-9 zone (a 270m long portion of Anomaly B) indicates that soil geochemistry is a cost-effective method of targeting sub-surface mineralization. Anomalies C and D remain to be tested by drilling.


Geochemical Anomaly Length
Anomaly B 1.5km
Anomaly C 700m – open
Anomaly D 1.0km – open


Anomaly B, hosting the mineralization discovered at the B-9 zone, was sampled by the Company in 2017 with high zinc in soils outlined over a 1.5km trend. Additional infill sampling in 2018 supported the discoveries at the B-9 zone. The westward expansion of the geochemical survey in 2018 (see Figure 2) outlines a strongly anomalous, continuous and untested area of zinc in soil for up to 400m downslope and 500m northwest and southeast below the 2018 drill holes.


Expansion and infill soil geochemical surveys at Anomaly C in 2018 (see Figure 1) outline an area measuring greater than 700m in length and remaining open for further sampling to the south. To date, 20% of the 147 soil samples at Anomaly C have returned greater than 1000 ppm Zn (0.1% Zn) with highs up to 6314 ppm Zn (0.63% Zn) in soil.


Initial wide spaced soil survey lines were also completed in 2018 at Anomaly D (see Figure 1). This survey indicates a “multi-trend” in an area measuring over 1km in length returning numerous high zinc (greater than 500 ppm to 2654 ppm Zn) responses in soils.


2018 Drill Program (see Figure 3 and refer to News Release NR2018-06 for descriptions and photos of previous results)


The 2018 drill program (holes IB18-001 to IB18-010) focused on the southeastern area of Anomaly B, now called the B-9 zone, and generally targeted the upslope limits of anomalous soil geochemistry over a 270m trend. The only rock exposure in this area is a surface zinc oxide (smithsonite) occurrence which returned 45.5% Zn in a grab sample. Untested soil geochemical anomalies at the B-9 zone extend over 400m downslope and 500m northwest and southeast below the 2018 drill holes. A single hole (IB18-011) was completed 900m north of hole IB18-001.


Drill Hole IB18-009


Drill hole IB18-009 was drilled from the site of IB18-002 in a southerly direction, targeting an area of high zinc in soil geochemistry 75m south of the drill site and 50m south of the multiple shallow mineralized intersections in holes IB18-001 and IB18-002 (see News Release NR2018-06). The hole commenced in siliceous polymictic sedimentary breccia until 78m downhole when sphalerite (zinc sulphide) concentrations increased and transitioned between semi-massive to massive form over the following 6.3m. Several sections of the massive sulphides are very high in zinc grade with one sample (see Figure 4) from 79.57m to 80.02m downhole grading 40.9% Zn. The mineralization occurs at a transition in geology to pyritic-sericite schists and altered siltstones. This is consistent with the location of several of the significant intersections returned from drilling at the B-9 zone. Core recoveries in the mineralization are estimated at 85%.


Figure 4:


Drill Hole IB18-008


Drill hole IB18-008 was drilled vertically from the site of holes IB18-002 and IB18-009. Mineralization intersected from 55.79m to 62.52m (5.76% Zn, 0.48% Pb and 3.41 g/t Ag) consists of fracture fill to semi-massive sphalerite hosted in a silica flooded sedimentary breccia. Core recoveries are estimated at 90%. This mineralization style and internal position within the sedimentary breccia sequence is consistent with similar but lower grade material located 125m to the north in hole IB18-005 and is characteristic of “feeder” style mineralization.


Figure 5:


Drill Holes IB18-007, IB18-005, IB18-010 and IB18-011


Hole IB18-007 was a vertical hole drilled from the same location as hole IB18-006. The hole collared in black shales and transitioned into sedimentary breccia and intercalated grey altered shales and siltstone sequences. A narrow interval grading 1.09% Zn hosted in the sedimentary breccia unit, occurred at 118m downhole.


Drill holes IB18-005 and IB18-010 were drilled in the 250m interval between the massive sulphides intersected in hole IB18-003* (9.26% Zn, 2.43% Pb and 17.98 g/t Ag over 3.05m at 23m below surface) and the mineralization in holes IB18-002, IB18-008 and IB18-009. Hole IB18-005 intersected 1.13% Zn over 2.75m at 53m downhole and within the siliceous sedimentary breccia unit. As mentioned previously, this mineralization is similar and may reflect an extension of the thicker, higher grade mineralization intersected 125m south in hole IB18-008. The lower portions of this hole were affected by loss of core recovery at the transition into pyrite-sericite schists. Hole IB18-010 was a south directed hole and intersected pyrite-sericite schists and ankeritized (carbonate altered) siltstones consistent with footwall sequences seen in other holes at the B-9 zone.


Hole IB18-011 targeted soil responses 900m to the north of hole IB18-001. Black shales, containing narrow zones of anomalous silver, comprised the entire length of the hole.


Table 1: Indy BC – 2018 Drill Hole Intersections

Drill Hole

IB18-005 40.85 42.38 1.53 2.27 0.03 1.40 2.32 28 35
and 53.05 55.80 2.75 1.13 0.04 0.59 1.17 36 90
IB18-007 118.00 119.00 1.00 1.09 0.17 1.30 1.24 118 85
IB18-008 55.79 62.52 6.73 5.76 0.48 3.41 6.18 56 90
includes 59.77 61.04 1.27 11.25 0.77 5.83 11.93 60 100
IB18-009 78.05 84.34 6.29 12.33 2.98 24.46 14.98 60 85
includes 79.15 80.70 1.55 19.95 3.14 21.21 22.65 62 85
includes 79.57 80.02 0.45 40.88 5.70 45.80 45.93 62 90
includes 81.10 83.45 2.35 18.04 4.45 40.80 22.09 64 75
IB18-010 NSV  
IB18-011 65.15 68.80 3.65 1.20   83
Previously Released* 2018 Drill Results (see News Release NR2018-06)
IB18-001* 38.41 39.50 1.09 2.74 0.37 5.10 3.11 33 96
IB18-002* 35.96 40.24 4.28 4.49 1.13 7.32 5.46 28 37
and 41.77 47.15 5.38 2.24 0.83 5.23 2.95 33 40
and 49.39 53.96 4.57 3.50 0.66 4.59 4.07 32 65
IB18-003* 25.00 28.05 3.05 9.26 2.43 17.98 11.38 23 41
includes 25.00 26.52 1.52 16.11 4.08 32.50 19.72   16
IB18-004* 22.26 23.75 1.49 2.06 0.48 3.60 2.48 23 43
IB18-006* 49.97 53.96 3.99 3.88 1.34 8.91 5.03 29 75
includes 51.10 52.44 1.34 8.31 2.80 18.10 10.71   67
and 104.27 105.79 1.52 2.96 0.42 2.32 3.31 63 100
includes 104.27 104.70 0.43 9.30 1.24 6.72 10.34   100


Note: True widths are unknown. The intersections in IB18-002 are separated by lost core/no recovery. ZnEq calculation: metallurgical studies have not been completed and assumes 100% metallurgical recovery using Zn prices at $1.10/lb., Pb at $.80/lb. and Ag at $15/oz – all $US. 


Table 2: Indy BC – Drill Hole Summary Data (see Figure 3 for Locations)


2018 DDH Zone Azimuth Dip Elevation
IB18-001 B9 Zone or
Anomaly B
240 -55 1079 117.68  
IB18-002 240 -55 1089 104.27  
IB18-003 240 -60 1107 101.22  
IB18-004 240 -88 1107 101.52  
IB18-005 240 -50 1117 112.50  
IB18-006 240 -55 1108 140.85  
IB18-007 000 -90 1108 170.12  
IB18-008 000 -90 1089 83.23  
IB18-009 180 -50 1089 103.96  
IB18-010 180 -50 1087 110.06  
IB18-011 Anomaly B
240 -60 1133 125.61  
        Total (m) 1271.02  


Figure 1:


Figure 2:


Figure 3:



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 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 November 13, 2018

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