Multiple gold bearing shear zones at Yandal West: Great Western
Great Western Exploration (ASX: GTE) has received results from the latest round of RC drilling at its Yandal West gold project.
A total of 10 holes for approximately 1,024m were completed. The drilling resulted in a significant development in the understanding of the nature of the gold mineralisation at Yandal West. The drilling also extended the Bell Miner high-grade gold lode at the Ives Find prospect.
· Latest drilling indicates that aeromagnetic data is mapping out gold mineralised shear zones at Yandal West. This is a significant development in the understanding of the nature of mineralisation and will guide future drilling.
· New results include:
· 3m @ 15.02 g/t gold from 51m (incl. 1m @ 30.9 g/t gold)
· 2m @ 5.87 g/t gold from 74m (incl. 1m @ 11.1 g/t gold)
· 4m @ 2.51 g/t gold from 20m
· Three large mineralised shear zones now identified; Harris Find Shear Zone with approximately 8.5km strike, May Queen Shear Zone with approximately 6.5 km strike and the Ives Find Shear Zone also with approximately 6.5km strike.
· High grade gold associated with all three shear zones.
· Visible gold observed within the Harris Find and May Queen shear zones, together with screen fire assay results indicating significant coarse gold, supports the potential for higher grade areas to enhance economics.
· The better understanding of the gold mineralisation demonstrates the considerable exploration upside of the Yandal West gold project and provides clear targets which can be tested economically.
· The next round of drilling to commence next month will focus on the high priority Harris Find Shear zone located within the May Queen prospect. It will be designed to extend the strike of the known gold mineralisation and demonstrate its potential scale.
The drilling has demonstrated that the gold mineralisation and associated shearing correlatesstrongly with discrete magnetic units. Further field checking along these magnetic units found strong shearing in areas of outcrop.
There is also a strong correlation with gold-in-soil anomalism and high-grade gold mineralisation observed in drilling and rock chips. The Company believes that these magnetic units are mapping out large gold mineralised shear zones.
The new interpretation is that shear zones were magnetised around the same time the gold mineralisation was introduced into the shears, resulting in a magnetic signature that can be identified in the aeromagnetic data and used to map the shear zones.
Potential gold bearing structures can be identified and mapped using simple geophysical data, providing improved targeting with greater confidence. This will reduce the amount of drilling that is required to determine areas of economic interest.