System Type:
Epithermal, quartz-calcite veining, and silicified hydrothermal breccia zones.
Strike-Length:
The Ridge target is predominantly covered by post-mineral colluvium with a 1.7 km strike length potential based on scattered bedrock exposures and historic mining pits.
Resource:
None at this time
Location:
The Ridge target is located 1,500 meters west of the White Point target along the Deer Lodge Canyon structural zone.
Drilling:
None to date.
Geophysics:
The Ridge target is located on the northern edge of a ZTEM (airborne geophysics) resistivity anomaly which is interpreted to be reflecting a caldera margin boundary as well as a major structural trend oriented northwest. The CSAMT ground-based geophysical survey do not yet cover this area.
Geology:
The Ridge target is located 1.5 km west of the White Point target along the Deer Lodge canyon structural zone. The deer Lodge canyon marks the northwest boundary of the Gold Springs Caldera, a splay of which hosts the Grey Eagle resource. Much of the Ridge target is covered with post-mineral colluvium but examining the limited outcrops, historic workings, and mineralization found in float has provided evidence of an extensive epithermal gold system below the shallow cover. Mineralized float is found over a 1.7 x 1.1 kilometer area signifying the potential size of the Ridge target. In historical workings near the caldera margin there are outcropping explosions breccias typically found at high levels within epithermal gold systems indicating there may be a fully preserved system hosted along the caldera boundary
Mineralized material in float include, stockwork veining in andesite, banded and bladed quartz-calcite veins, and silicified hydrothermal breccias. Vein samples returned assays as high as 2.77 g/t Au and 20.8 g/t silver, with hydrothermal breccia grading 0.44 g/t Au and 35.7 g/t silver.
The Ridge target is characterized by scattered quartz vein float and limited outcropping veins. Several small prospect pits were identified using the bare earth LIDAR imagery. Sampling has produced numerous +1 g/t gold values. The area is dominated by post-mineral cover, and the extent and frequently of the veining is unknown at this time. Additional work will be required to further develop this target, in particular trenching will be required to see below post-mineral cover.
Structural Geology:
The Ridge target area is situated along Deer Lodge Canyon which follows the margin of the large Gold Springs caldera. The Grey Eagle resource is located along a splay of this same caldera margin. In addition, there are prominent northwest and northeast trending structures that intersect in the Ridge target area representing an obvious drill target.
Historical Mining:
The Ridge target has several small prospect pits.
Geochemistry:
Vein samples returned assays as high as 2.77 g/t Au and 20.8 g/t silver, with hydrothermal breccia grading 0.44 g/t Au and 35.7 g/t silver. Values greater than the resource cut-off grade of 0.25 g/t Au are listed below.
Table: Rock Chip Sampling Results from the Ridge target
SAMPLE |
Sample Type |
Description |
Target |
Au g/t |
Ag g/t |
225278 |
Float |
Banded/Bladed Calcite-Quartz vein |
Ridge |
0.36 |
3.7 |
225274 |
Float |
Banded Quartz vein |
Ridge |
0.99 |
9.6 |
225277 |
Float |
Banded Quartz vein |
Ridge |
1.39 |
20.8 |
225271 |
Float |
Banded/Bladed Quartz vein |
Ridge |
1.43 |
17.7 |
225279 |
Float |
Banded/Bladed Quartz vein |
Ridge |
0.75 |
11.8 |
225288 |
Float |
Banded/Bladed Quartz vein |
Ridge |
2.77 |
11.2 |
225262 |
Outcrop, Discontinuous, 0.5m |
Banded/Bladed Quartz-Calcite vein |
Ridge |
0.94 |
2.1 |
225263 |
Dump |
Banded/Bladed Quartz-Calcite vein |
Ridge |
0.33 |
3.1 |
225282 |
Float |
Vuggy Banded Quartz vein |
Ridge |
0.85 |
2.2 |
225259 |
Float |
Banded Quartz vein |
Ridge |
1.92 |
15.6 |
225270 |
Float |
Banded/Bladed Quartz vein |
Ridge |
0.66 |
6 |
225251 |
Float |
Hydrothermal breccia |
Ridge |
0.44 |
35.7 |