PROJECTS
OVERVIEW –

GB Energy is targeting energy metals across a range of mineralisation styles.

GB ENERGY
LIMITED

MT DENISON —

GB Energy’s Mt Denison Copper-Gold-Uranium project is located in the Peake Hill area of South Australia approximately 60km southeast of Oodnadatta.

Mt Denison is considered prospective for Iron Oxide Copper-Gold (IOCG) hosted mineralisation given the following attributes:

  • Location: an inlier of Paleoproterozoic rocks adjacent to the NE margin of the Gawler Craton;
  • Structure: parallels and is constrained by regional NW striking structures;
  • Mineralisation: historic copper workings prevalent in the area interpreted to be remobilised from basement lithologies – Copper mining occurred in the Peake Denison Inliers during the late 1890s and early 1900s from numerous mines and shafts;
  • Magmatism: Palaeoproterozoic and Mesoproterozoic igneous intrusives and extrusives known in the area; and
  • Alteration: density highs potential indicator of hematite alteration.

 

A secondary exploration target at Mt Denison is sediment-hosted uranium mineralisation in Mesozoic and younger sediments which unconformably overlie the Proterozoic basement. GB Energy believes Mt Denison has all the components for sedimentary uranium deposition:

  • Source: radiogenic basement outcropping at Peake-Denison Ranges;
  • Path: thick sequences of gently dipping, porous sandstone adjacent to source; and
  • Trap: confining shale formations and reduced components in sandstone (pyrite, organic matter).

GB Energy has completed detailed ground gravity and airborne magnetic / radiometric surveys over the project area identifying several targets of interest beneath sedimentary cover.

In late 2016, the Mt Denison Copper-Gold-Uranium project was awarded $200,000 in PACE Discovery Drilling co-founding from the Government of South Australia.

LAKE GREGORY & LAKE BLANCHE —

GB Energy’s Lake Gregory and Lake Blanche projects target lithium brines, potash and uranium mineralisation approximately 120km NE of the township of Marree.

GBX selected the Lake Gregory area based on a prospectivity analysis conducted by Geoscience Australia: A Review of Australian Salt Lakes and Assessment of their Potential for Strategic Resources (Record 2013/39). No previous lithium exploration has been recorded in the area.

Lithium brines occur where ground waters percolate through lithium-bearing source rocks and deposit in a closed basin. Lake Gregory is fed by a catchment containing rocks with unusually high levels of uranium and lithium (the Mount Babbage Inlier).

Lake Blanche lies at the northern end of the Frome Uranium Province, an area identified by Geoscience Australia and other explorers as prospective for sandstone-hosted uranium in Cenozoic sediments.

Drilling in the adjacent tenement to the south of Lake Blanche indicates the redox boundary (an important mineralisation control) is further north along a palaeochannel, potentially within GB Energy’s Lake Blanche tenement.

STUART SHELF —

GB Energy’s Stuart Shelf Copper-Gold-Uranium project lies with the Olympic Copper-Gold Province host to Olympic Dam, Prominent Hill, Carrapateena, Hillside and other recent discoveries.

The northern areas of the Olympic Copper-Gold Province remain under-explored due to thick sedimentary cover.

3D inversion modeling conducted by GB Energy shows a large magnetic anomaly interpreted as deep intrusive extending up from extreme depth to 5km below surface with amplitude and depth similar to inferred deep intrusive below Olympic Dam that provided heat source to drive mineralising fluids.

The gravity model shows zones of high density wrapping around the deep magnetic body and extending upwards.

Magnetics and gravity data reveal deep NW/SE crustal structure parallel to regional trend and aligned with known Iron Oxide Copper-Gold (IOCG) deposits.

PENDING APPLICATIONS —

GB Energy has lodged several exploration licence applications in Western Australia and the Northern Territory targeting Nickel-Copper-Platinum Group Elements; Zinc-Copper-Lead and Uranium mineralisation. Please see our recent ASX Announcements for details of these applications.