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Head Office

Suite 9, 36 Ord St
West Perth, Western Australia 6005

Tel: +61 8 6555 3980
Fax: +61 8 6555 3981

Lamil Cu-Au Project - Paterson Province, Western Australia

Exploration target(s) includes stratiform base metal and Telfer Cu-Au deposit types

The Lamil amil Project is located in between the major mining operations of the Nifty Cu mine and the large Telfer Au-Cu mine within the Paterson Province, East Pilbara, Western Australia and is 100% owned by Rumble Resouces.

In July 2019 Rumble signed a $10m Farm Out of Lamil Project with AIC Mines (ASX: AIC) where they can earn up to 65%.

Image 1 - Lamil Project – located in between Nifty Cu mine and large Telfer Au-Cu mine and within the same region as the recent Winu copper-gold and Havieron gold-copper discoveries within the Paterson Province.

Paterson Province – Highly Mineralised, Underexplored Region

The Paterson Province is a globally recognised mineralised belt hosting the world-class Telfer gold and copper (32Moz Au, 1Mt Cu resource) and Nifty copper (2 Mt Cu resource) deposits. Other deposits in the province include the Magnum and Calibre gold and copper deposits and the O’Callaghans tungsten deposit.

The highly mineralised Paterson Province region is largely underexplored but has recently been subject to exploration from various groups targeting large scale stratiform Cu, sediment hosted Zn-Pb, potential iron oxide copper gold (IOCG) and sediment hosted vein copper - gold Telfer Style deposits.

Recent developments in the region include mining major Rio Tinto Limited (ASX: RIO) announcing the large Winu copper-gold discovery and Greatland Gold plc defining the Havieron gold-copper discovery, which has recently been subject to a US$65m farm in agreement with mining major Newcrest Mining (ASX: NCM).

Lamil Project Overview (see image 1)

The Lamil Project (Project) (area of 1375 km²) lies over partly covered siltstones, sandstones and carbonate rocks of the Neoproterozoic Lamil Group which is a part of the Yeneena Basin within the Paterson Province of Western Australia. The Project is located between the major mining operations of the large Telfer gold mine owned by Newcrest Mining and the Nifty copper mine owned by Metals X Limited (ASX: MLX). The Telfer Au – Cu deposit, which lies some 30km to the northeast of the Lamil Project, is hosted by rocks of the Lamil Group. Younger highly fractionated granitic intrusions of the Mt Crofton, Minyari, Wilki and O’Callaghans Suites intrude into the Lamil Group.

The main cover sequence is Permian fluvio-glacial sediments. In the central and north-western portions of the Project area, the Permian cover is deep, however, in the south-eastern portion of the Project area, Lamil Group sediments outcrop and regional geophysics (airborne Tempest EM survey and recently flown magnetics) indicate the cover is shallow, averaging 50 – 100m.

Open File review of the Lamil Project has indicated only 15 drill holes have been completed within the two tenements (ELA45/5270 and ELA45/5271) that form the Lamil Project. In addition, only wide-spaced (400m line spacing) airborne magnetics have previously been conducted over the main Project area.

Airborne Magnetics Survey (Feb/Mar 2019)

Rumble completed a 1565 line-km survey on 200m line spacing bearing 050 (normal to regional geology) over the southeast portion of the Lamil Project (ELA45/5271). The area is covered by shallow Permian and recent sediments. Sub-cropping siltstones of the Lamil Group have been mapped within the survey area.

Four High Priority Targets identified (see image 2)

Four high priority target areas have been delineated from the processed airborne magnetics. Processing included a series of upward continued images designed to highlight deeper magnetic sources which potentially could represent mineralising intrusions.

Image 2 - Lamil Project – High priority targets with interpreted structure over merged TMI airborne magnetics,all untested by previous exploration (drilling or geophysical)

Target P1 - Large NNW Trending Dome (informally named the “Lamil Dome”) – Image 3

A large NNW trending dome (double plunging antiform) has been inferred over a strike of 8km under Permian and recent cover. Importantly:

  • The depth of cover is approximately 100m.
  • No previous exploration (drilling or geophysical) has tested the target.
  • The upward continued magnetic imagery at 500m (UC500m) has highlighted an increase in the magnetic response which may indicate a potential underlying intrusion (image 3).
  • The dome has similar characteristics to the Telfer Dome with respect to orientation of the main axial plane, inferred host rocks and size.

Image 3 - P1 Target – Series of Upward Continued Magnetic Images highlighting the “Lamil Dome” which has similar dome size, trend and host rocks to the Telfer Au – Cu deposit (32Moz Au, 1Mt Cu resource) a large dome structure which lies 30km to the northeast of Rumble’s Lamil Dome Target.  

Target P2 - Large Southeast Plunging Synform (image 2)

A large synform with a southeast plunge has at least three magnetic targets located along the inferred hinge zone of the main fold axis. The host rocks are the Lamil Group (sub-crop has been mapped). Importantly:

  • The target has similarities to the Nifty Cu deposit (2Mt Cu resource) which lies 60km to the northwest. The Nifty deposit is hosted shales and carbonates of the Broadhurst Formation (older than the Lamil Group) and is a sediment hosted Cu system lying within the keel/hinge zone of a southeast plunging synform with a northeast trending overprint (epigenetic).
  • Depth of cover interpreted to be 50 – 100m (Permian). Sub cropping siltstone (Lamil Group) occurs near the target area.
  • No previous exploration (drilling or geophysical)

Target P3 - Northeast Structure (image 2)

Inferred strong pervasive (demagnetisation) alteration can be delineated along a significant northeast structure immediately south of the “Lamil Dome”. Later northeast trending structures (fluid bearing) are thought to have modified and upgraded copper mineralisation at the Nifty deposit (chalcopyrite replacement of earlier metalliferous pyrite).

  • No previous exploration (drilling or geophysical)

Target P4 - Dome Target (image 2)

Immediately east of the “Lamil Dome”, partial dome structures and closures along with ovoid features potentially reflect deformed domal targets.

  • No previous exploration (drilling or geophysical)
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