The Crowl Creek Project

REGION: Cobar Basin, New South Wales
OWNERSHIP: 100%
LOCATION: 20kms west of the town Condobolin
PRODUCT: Gold & Base Metals
PROJECT STATUS: Exploration
HOLDING: 420km2

OVERVIEW

The Crowl Creek Project is made up of 8 Exploration licenses located near the township of Condobolin in Central NSW. The project lies in the southern extent of the Cobar basin which hosts deposits such as the Hera and Nymagee Mines (YTC Resources), further north east the Peak Mine (New Gold) and CSA Mine (Glencore), and postioned adjacent to the tenements is the Cu/Pb/Zn/Au deposit of Mineral Hill (KBL Resources).

 

EXPLORATION

Blind Calf Copper Prospect

Blind Calf is located near the junction of the Gilmore Suture and Crowl Creek Fracture Zone approximately 160km SE of Cobar in central NSW and is centered over the Blind Calf Copper Field, just 4km west of the Mineral Hill Pb-Zn-Cu-Au Mine. Exploration has primarily focused on copper and gold targets located in and around historic workings and production centres. A series of drilling programs completed during 2011 and 2012 delivered best intercepts of KD11-17 23m @ 7.07 % Cu from 24m; and KD11-22 13m @ 2.18% Cu from 72m.

 

Murrays Mine Gold Prospect

The Murrays Mine Prospect is a saddle reef style mineralised system that has historically been drilled and delineated from surface as a contiguous NW-SE striking lode. The lode remains open to the south and north and open down dip. A recent soil sampling program completed in 2015 identified and extended the mineralised envelope for the system. The gold and arsenic anomalism coincident with structural features highlighted in aeromagnetics clearly delineates several features that will be followed up in future testwork. Historic results reported from the prospect show consistent grades along the ore body with standouts of 14m @ 2g/t Au & 4.8 @ 2.5 g/t Au.

 

Three Peaks Poly-metallic Prospect

The Three Peaks prospect is located south of the Blind Calf license. Within this prospect there are three workings / historical mines called Big Ben (Cu), Melrose (Pb-Ag) and Anaconda (Cu-Zn-Pb). Of these, the Anaconda Copper Mine produced 710t of ore with grades of up to 11.5% Cu in the oxide zone and 3% Cu, 3.8g/t Au and 122g/t Ag within massive sulphides intercepted.

Located just west of Ordovician-Devonian contact, the Anaconda Mine sits along a Sigmoidal structure ~200m long interpreted from positions of shafts – offset by NNW-trending east-side-up fault associated with large quartz veins geometry. Mineralisation at the Anaconda mine is interpreted to be hosted along a north trending contact between conglomerates and slates/phyllites.

At the Melrose prospect a north-west striking contact between quartzites and slates/phyllites hosts the mineralisation.  In both cases the rheological and lithological contrast is an ideal conduit for copper-bearing fluids to travel through and precipitate within. Kidman undertook a successful ‘first pass’ drill program which included 2m @ 2.1% Cu, 35.5 gt Ag, 0.5% pb, 0.1% Zn from 14m (Anaconda). Follow up DHEM surveys have identified conductors for a follow up drilling program.

 

GEOLOGY

The Crowl Creek Project area occurs within the central-northern Lachlan Fold Belt. It occupies a NNW-trending fault corridor near the eastern margin of the Cobar Basin. This margin represents the reworked basin edge and contains elements of platform deposition and sub-basin formation with histories that align with the highly prospective Cobar Basin. This edge of the Cobar Basin is believed to occupy a position above the Gilmore Suture, a structure believed to mark the accretion of Ordovician sedimentary rocks onto Paleozoic Australia. Subsequent tectonic activity of this structure during the Siluro-Devonian led to the formation of the Canbelego-Mineral Hill Rift Zone (arrowed), a series of basins that formed within the Ordovician basement and accommodated volcanic-dominated sequences, which are related to numerous mineral deposits. This zone has been inverted and extensively deformed during subsequent orogenic pulses.

 

HISTORY

The Cobar region has a +130 year mining industry. Cobar-style deposits typically have small surface geochemical footprints but are high grade and have large vertical extents (>1km), such as at the CSA, Peak, and Nymagee deposits.

 

Murray's Prospect

Murrays Soil Geochemistry
Click map to enlarge