The Horseshoe E. Target

System Type:

Low sulphidation, epithermal, banded quartz-calcite veins, with hydrothermal breccia zones

Strike-Length:

The Horseshoe Extension target is a 750 metre section of the major Horseshoe structural zone located between the Horseshoe and Homestake historical mines.

Resource: 

None at this time

Location:

The Horseshoe Extension target is located in the Nevada side of the Gold Springs project, just north of the historical Horseshoe mine, which was the largest gold producer in the district, and continues to the southern edge of the Homestake target. 

Drilling:

None

Geophysics:

Horseshoe Extension is located along the edge of a resistivity high anomaly identified in the airborne ZTEM geophysical survey at a 135 metre depth slice (see map below).  

Geology:

Mineralization at the Horseshoe Extension is characterized by banded quartz-calcite veins and hydrothermal breccia zones that are hosted in silicified andesite. Most of the target is covered by a layer of post-mineral gravel which ranges in thickness from a thin cover to over 10 meters.

Structural Geology:

The Horseshoe historical mine, Homestake and Horseshoe Extension targets are all located along the same major north-south trending fault zone. This structural corridor extends over 7 kilometers in length and represents one of the largest and most dominant structures within the project area, and dominates the Horseshoe Extension target. This structure is well exposed on surface at the southern end, where the Horseshoe historical mine is located, and on the northern end, where the Homestake historical mine is situated. In between lies the Horseshoe Extension target where much of the area is covered by post-mineral gravels. There are numerous historical mine workings scattered along the 750 metre Horseshoe Extension strike-length with several shafts and tunnels showing mineralized material on the dumps.   

Historical Mining:

The are several historical shafts, pits and tunnels located on this target. These were focused on exploiting banded quartz-calcite vein systems. The largest historical mine working is a caved tunnel displaying a large dump containing large vein fragments. The Horseshoe and Homestake historical mines were high-grade underground mines that exploited a banded quartz-calcite vein up to 7.5 metres thick that was hosted in the Horseshoe structure.

Geochemistry:

Mineralization at the Horseshoe Extension is characterized by banded quartz-calcite veins and hydrothermal breccia zones that are hosted in silicified andesite. Recent sampling by the Company produced the following results with gold greater than 0.25 g/t Au (cutoff grade of the existing resources at Gold Springs):

Table: Recent Rock Chip Sampling Results from Horseshoe Extension:

Sample ID

Company

Sample Type

Description

Au (g/t)

Ag (g/t)

224467

GRC

Dump

Silicified andesite

1.67

3.1

224472

GRC

Dump

Silicified andesite with minor veins

1.52

3.5

224473

GRC

Outcrop

Silicified andesite with stockwork veins

0.4

1.8

224475

GRC

Dump, 0.5m by 0.5m area

Silicified andesite with stockwork veins

7.85

2.4

224476

GRC

Outcrop

Old mine pit. Massive quartz-calcite vein

0.41

1.8

224477

GRC

Dump, 0.5m by 0.5m area

Breccia

1.01

2

224487

GRC

Dump, 0.5m by 0.5m area

Massive white quartz-calcite vein from 10m deep shaft

1.31

4.3

224489

GRC

Dump, 0.25m by 0.25m

Silicified andesite with stockwork veining and crystals of green fluorite.

0.28

8.2

224494

GRC

Dump grab

Massive quartz vein.

0.33

1.8

224495

GRC

Outcrop grab

Fault gouge with hematite and quartz vein

1.38

2.6

A cutoff grade of 0.25 g/t Au was used, which is the cutoff grade of the nearby Grey Eagle resource.

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