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Rumble Resources announces first order drill targets defined at Earaheedy Zinc Project

Mining News - Published on Mon, 11 Feb 2019

Image Source: ABN Newswire
Rumble Resources Ltd announced that gravity inversion modelling over the southeast portion of the Earaheedy Zinc Project (E69/3464 - 75 km2) has delineated six first order gravity drill targets. The gravity targets lie directly over inferred northwest trending basement faults/structures. In addition to the modelling, a detailed review of historic drill hole intercepts has been completed which has significantly enhanced the prospectivity.

Six First Order Drill Targets Defined
- Detailed infill gravity surveys completed by Rumble have been modelled (gravity inversion modelling) with six first order drill targets identified.
Importantly, the gravity targets are located over the main interpreted basement extension fault and likely represent high to moderate angle fault breccia zones with high potential to host economic base metal mineralisation.
The gravity targets dip steeply to the southwest in line with the basement fault zone.
The gravity targets (iso-shells) are large, up to 1.5km in strike length (EG1) and up to 300m in width
All six gravity targets are located within the flat lying carbonate unit that hosts the known zinc-lead horizon (from historic drilling)
Significantly, no historic drill-holes previously intercepted the six first order gravity targets to be drill tested by Rumble

Scheduled RC/Diamond Drill Program
- Two diamond tails will drill test the gravity targets EG1 and EG3 with contingency holes for gravity targets EG4 and EG6, scheduled for March 2019
- Rumble has EIS funding up to $100,750 for the drill program.

Target Potential and Style
- Review of historical drilling identified that thirty-five (35) RC and diamond drill holes intercepted zinc mineralisation over an area of 20km by 3.5km within carbonate rocks that are overlain by granular iron formations (Frere Formation). Examples of intersections:
11.3m @ 4.34% Zn, 0.85% Pb from 150.2m

Includes 2.3m @ 14.42% Zn, 1.15% Pb from 150.2m
35m @ 1.3% Zn from 208m.

Includes 6m @ 3.16% Zn from 210.5m.
20m @ 1.86% Zn, 0.56 % Pb from 103m to EOH.

Includes 7m @ 3.6% Zn, 1.25% Pb from 103m.
High-grade silver mineralisation was also intercepted and includes

4m @ 559 g/t Ag from 257m (18 oz/tonne Ag)
2m @ 149 g/t Ag from 223m

No historic drill-holes have intercepted the six first order gravity targets
- Rumble is targeting Mississippi Valley Type (MVT) high-grade zinc deposits associated with basement faults (high angle breccia fault zones) within flat lying carbonate rocks
- The target size is 10-20Mt, similar to the Pillara (Blendevale) Zn-Pb deposit located in the Lennard Shelf of WA, with a strike of 2km discovered between 80m to 500m below surface for a resource of 20Mt @ 8.3% Zn, 2.5% Pb, 17ppm Ag

The area of mineralisation occurs over a strike of 20km and is up to 3.5 km in width. Rumble's Managing Director, Mr Shane Sikora, said: "In line with Rumble's strategy of generating and drill testing a pipeline of exploration projects capable of high-grade world-class discoveries, Rumble is pleased to announce an exciting development at the Earaheedy Zinc Project. As a result of Rumble's systematic drill targetting process, Rumble has identified six first order gravity drill targets at Earaheedy, with priority targets to be immediately tested with the drill-bit.

The six gravity shells are compelling drill targets that potentially represent large, mineralised zinc ore bodies.

This interpretation is based on:
- the widespread Zn and Pb metal distribution surrounding the gravity targets;
- the gravity shells highlighting dense areas which could represent mineralisation accumulation;
- a review showing that no historic drilling intersected the targets;
- the targets are positioned at the same depth of zinc mineralisation identified in historic drilling;
- the targets are located over the main interpreted basement extension fault; and
- Importantly, modelling determined the dip of gravity targets are in line with the basement fault which could reflect mineralisation intrusion.

These elements combined, and the large size of the gravity targets (up to 1.5km in strike length and up to 300m in width), provide the potential to host a target of 10-20mt Mississippi Valley Type (MVT) type high-grade zinc deposits, Rumble looks forward to drill testing these targets and providing shareholders with a near term opportunity for a significant re-rating that would be expected as a result of any exploration success."

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Posted By : Rabi Wangkhem on Mon, 11 Feb 2019
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