Rumble Resources Limited (ASX: RTR) has obtained further significant new high-grade Zn-Pb drilling results and defined multiple new mineralised zones (potential feeder structures) at the Chinook and Tonka Prospects from ongoing exploration activities at the Earaheedy Project, 140km northeast of Wiluna, Western Australia.
The Tonka Prospect is significantly advancing in size and grade with some of the widest and highest-grade, zinc dominant, drill intercepts recorded to date on the Earaheedy Project.
Drilling during the period has led to linking of the Tonka and Navajoh Prospects, thus defining over 8kms of mineralisation which remains open along strike and down-dip.
The geological and assay information from the drilling has also identified a series of east-west structures controlling the higher-grade mineralisation, which are inferred to be feeder structures coincident with gravity gradient features.
These high-grade zinc dominant structures are up to five km in strike and remain open. Infill drilling within the Chinook Prospect on the northwest trending Kalitan Feeder Zone has also highlighted a new high-grade Zn-Pb east- west structure which is open along strike and at depth.
This new zone (termed Spur) adds a new dimension to Chinook, highlighting a possible network of east west feeder zones similar to that inferred at Tonka-Navajoh, within the 5km long northwest trending mineralised footprint.
Tonka Zn-Pb-Ag Prospect
The first infill stage (200m by 100m drill pattern) at the Tonka Prospect has successfully intersected wide zones of high-grade zinc dominant mineralisation.
Geological and geophysical interpretation based on the infill drilling has highlighted a strong association with a series of underlying east-west mineralised structures coincident with gravity features throughout the Tonka – Navajoh Prospect trend.
The multiple mineralised structures are interpreted to be high grade feeder faults that transgress the Navajoh Unconformity Unit into the underlying lithologies that strike northwest and dip very shallowly to the northeast.
The latest interpretation has significantly advanced the litho-structural understanding at Tonka – Navajoh trend and will greatly enhance future drill targeting.
New Colorado High-Grade Zone
• A broad zone of east-west trending structures has been named the Colorado Zone
• The Colorado Zone comprises of at least two east-west mineralised faults (inferred feeders) with further potential faults to the north and south.
Two recent holes targeting the Colorado Zone have returned:
- EHRC515 – 73m @ 3.07% Zn + Pb (2.75% Zn, 0.32% Pb) from 106m; including 13m @ 5.38% Zn + Pb (4.87% Zn, 0.51% Pb) from 108m, with 6m @ 6.7% Zn + Pb (6.13% Zn, 0.57% Pb) from 108m; Including 19m @ 3.48% Zn + Pb (3.08% Zn, 0.35% Pb) from 132m, with 7m @ 4.5% Zn + Pb (4.03% Zn, 0.47% Pb) from 136m, Including 9m @ 3.56% Zn + Pb (3.18% Zn, 0.38% Pb) from 162m, with 2m @ 8.17% Zn + Pb (7.49% Zn, 0.68% Pb) from 162m
- EHRC518 – 7m @ 10.71% Zn + Pb (8.52% Zn, 2.19% Pb) from 137m. Including 3m @ 19.93% Zn + Pb (15.88% Zn, 4.05% Pb) from 138m
The latest intersections lie some 300m to the northwest of previously reported high grade mineralisation: EHRC398 – 8m @ 6.75% Zn + Pb from 117m, HRC399 – 11m @ 5.82% Zn + Pb from 121m and EHRC400 – 5m @ 5.09% Zn + Pb from 143m
Newly Interpreted Magazine High-Grade Zone
The newly interpreted Magazine Zone is another significant sub-parallel east-west structure which lies 500m south of the Colorado Zone and is interpreted to link the Tonka and Navajoh Prospects over an open strike of 5km.
A further two higher-grade mineralised zones lie 800m and 1500m south of the Magazine Zone and may represent potential mineralised feeder structures.
For further information please visit: https://rumbleresources.com.au/
