North Jennie

Highlights:

  • North Jennie has a strong CSAMT geophysical resistivity anomaly similar to the one associated with the gold resources at North and South Jumbo, with an overall width of nearly one kilometer and a strike length over 2 kilometers.
  • The southern end of this target hosts the Thor resource and the historic underground Jennie Mine which was one of the district’s largest producers with gold grade up to 12 g/t Au.
  • At the north portion of the target, one hole was drilled by Astral Mining Corporation in 2006 with at its bottom 9.2 meters averaging 1.04 g/t gold and 5.83 g/t silver.
  • The 2021 drill program will be designed to follow up this 2006 hole and test the large geophysical anomaly.

Description:

North Jennie is located on the Nevada Utah border and is characterized by a large geophysical anomaly outlined by the 2020 CSAMT survey of 1,000 x 2,000 meters and open to the north.

The Thor resource and the historic Jennie mine are located on the southern edge of the resistivity high.

The Jennie mine was operated from the late 1800s to the 1940s with underground production reported to average 12 g/t Au and 60 g/t Ag.

Drilling Results:

In 2006, prior to GRC’s involvement, Astral Mining Corporation drilled one RC hole into this northern portion of the geophysical anomaly with at its bottom 9.2 meters averaging 1.04 g/t gold and 5.83 g/t silver verifying the gold association with the high resistivity feature.

GRC has received permits to construct drill pads over the North Jennie and will prepare the target for drilling in 2021.

Resource:

None at this time.

Geology:

The northern portion of the North Jennie is covered with young post-mineral rock which obscures the mineralization and is bounded by two major north-south striking structures in a similar setting to that seen at the North and South Jumbo resource areas. This structural setting creates areas of extensional tectonics creating a favorable setting for gold mineralization.

The one drill hole confirms that North Jennie represents a similar style of gold mineralization as that seen at North Jumbo located 1,600 meters to the east. The drill log reports stockwork veining and silicification in the areas of strong gold mineralization as is found within the Jumbo resources.

  • System Type: Low-sulfidation, volcanic-hosted, epithermal gold system
  • Structural Geology: The North Jennie extension lies along a +2 kilometer-long north-south structural corridor identified through structural mapping, Lidar imaging, and the CSAMT geophysical survey. This structural zone host several targets including the Thor resource and the historic underground Jennie Mine on its southern end. North Jennie has the same structural setting as both the North and South Jumbo resource areas being bounded by two major structures on the east and west.
  • Strike-Length: The North Jennie target area has an overall width of nearly one kilometer at its widest and a strike length of over 2 kilometers.

Geophysics:

North Jennie has a strong CSAMT geophysical resistivity anomaly.

North of the Thor resource, the North Jennie target is defined by a strong CSAMT high-resistivity signature which remains open to the north (see press release of September 2, 2020) similar to the one associated with the gold resources at North and South Jumbo, with an overall width of nearly one kilometer and a strike-length over 2 kilometers. Mineralization in this area is obscured by post-mineral flows and colluvium cover.

Geochemistry:

GRC has collected surface samples from around the Thor resource and Jennie mine obtaining very high-grade gold results from vein exposures. These include:

  • 23.35 g/t Au and 252.9 g/t Ag
  • 14.46 g/t Au and 395.9 g/t Ag
  • 13.34 g/t Au and 39.6 g/t Ag
  • 6.34 g/t Au and 36.3 g/t Ag
  • 5.00 g/t Au and 12.3 g/t Ag
  • 3.33 g/t Au and 36.3 g/t Ag
  • 1.22 g/t Au and 57.0 g/t Ag
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