The Barrow Creek Project

REGION: Barrow Creek, Northern Territory
OWNERSHIP: 100%
LOCATION: 10kms East of Barrow Creek, 250kms North of Alice Springs.
PRODUCT: Base Metals
PROJECT STATUS: Exploration
HOLDING: 91.5km2

OVERVIEW

The Barrow Creek Project is located 300kms NE of Alice Springs within the emerging Arunta Province and is 100% owned by Kidman Resources. The project area, EL23186 (Barrow Creek) covers 137.5 sq kms. The maiden JORC resource is strategically located near major infrastructure including the Stuart Hwy and gas pipeline (30kms west), and also the Darwin-Adelaide Railway (10kms east), presenting sound potential for a viable future operation.

At present the Project has been assessed as an inferred polymetallic deposit of:

2.5MT @ 1.8% Cu, 2% Zn, 36 g/t Ag, 1.2 % Pb, 0.14 g/t Au at 0.5% CuEq6 cut off. (2.8% CuEq6)

For further information see the ASX Announcement on July 29th 2014 or Click here to View

 

EXPLORATION

Home of Bullion

Since the project acquisition in May 2012 the company has completed over 16,000m of drilling and discovered a new massive sulphide lode south of the main lode under shallow cover identified via modern geophysical surveys.

These geophysical surveys have extended potential strike extensions for both lodes and delineated further targets along the 12km long and 2km wide Home of Bullion corridor which potentially add significant upside to the project.

The company intends to consider various development and funding options with the aim of increasing the size of our maiden resource at the Home of Bullion deposit. At present numerous exploration targets remain untested at both Home of Bullion and Prospect D (Cu, Ni) with both Main Lower Lode and South Lode open along strike and down dip.

Best intersections include:

Hole Number,Drill Results
HDD038,4.4m @ 9% Cu – 464.5g/t Ag – 1.79 % Pb – 1.79% Zn – 0.85 g/t Au
HDD034,5.9m @ 3.43% Cu – 54.5 g/t Ag – 1.61% Pb – 5.96% Zn – 0.43g/t Au
HRC036,36m @ 2.78% Cu – 27.6g/t Ag – 0.9% Pb – 2.3% Zn – 0.2 g/t Au. Including 10m @ 8.5% Cu – 40.9 g/t Ag – 0.6% Pb – 4.35% Zn
HDD044,9.7m @ 3.43 % Cu – 40.7 g/t Ag – 0.82% Pb – 1.99% Zn – 0.46g/t Au. Including 4.4m @ 7.3%Cu – 81.64 g/t Ag – 1.598% Pb – 3.71% Zn
HDD044W3,10.5m @ 3.78 % Cu – 53.28 g/t Ag – 1.15% Pb – 1.99% Zn – 0.596 g/t Au. Including 4.8m @ 7.54%Cu – 99.72 g/t Ag – 2.05% Pb – 3.39% Zn – 1.17 g/t Au

 

Prospect D

Prospect D is part of the Barrow Creek  licence and is located 25km’s northeast of the township Barrow Creek and 5kms east of the Stuart Highway.

Prospect D is a copper-nickel prospect was first identified in the early 1970’s and was delineated via shallow drilling over a length of 2km’s, within which, the higher grade zone was traced for over 250m and remains largely untested at depth. The copper-nickel mineralization has been described as a massive sulphide bands with lower grade disseminated sulphide mineralisation in the footwall gabbroic rocks. The copper-nickel mineralisation is also believed to be structurally thickened by tight folds and intersecting shears that plunge steeply towards the northwest.

Best intersections include:

Hole Number,Drill Results
DDH7,5.2m @ 1.18% Cu – 1.24% Ni from 83m
BCD00,1 6.8m @ 1.24% Cu – 0.27% Ni – 5.7g/t Ag from 133.8m (includes 0.35m @ 8.27% Cu – 1.22% Ni – 26.2g/t Ag)
BCD004,0.6m @ 2.27% Cu – 2.86% Ni – 8.5g/t Ag from 195.4m
BCD005,6.8m @ 1.01% Cu – 0.24% Ni – 0.63% Pb – 0.25% Zn – 7.3g/t Ag from 157.6m

 

GEOLOGY

The Barrow Creek Project straddles the boundary between the Arunta Inlier (south) and the Tennant Creek Inlier / Davenport Province (north). Contact between these tectonic blocks constitutes a wide NNW-SSW trending corridor which includes intensely folded/faulted rocks from both provinces (Lennartz, 2006). Neoproterozoic-aged Georgina Basin sediments are across much of the area (flat-lying sandstones and quartzites), sitting unconformably above steeply inclined, deformed and metamorphosed Palaeoproterozoic-aged metasediments. Modelling of displacement by faulting suggests a major crustal discontinuity along the NNW-SSE regional trend which could provide a pathway for migrating mafic magma.

Proterozoic-aged, radiometrically-anomalous granites have intruded along the NNW-SSE structural trend and outcrop at various locations from the Home of Bullion deposit to the Prospect D prospect and beyond.

 

HISTORY

The Home of Bullion ore body was mined back in the 1950’s with a historic production of 2500 t @ 22.5% Cu and is recorded as one of the highest grade copper ore bodies ever mined in Australia. A historic shaft which intersected copper mineralisation lies 300m east of the southern lens outcrop.

Several exploration companies have been active in the area of the Home Of Bullion Project area. Most of the work was targeted at extracting Copper oxide ore from the two mineralised areas. Historical explorer summaries are listed as;

Ward (1925): The earliest available record on the Home of Bullion prospect is by the South Australian Government Geologist (Ward, 1925) who examined the workings in July and September 1925.

Madigan (1934): The earliest detailed records of the mine geology, exploratory underground mine development, ore reserves and mineral potential of the Home of Bullion copper deposits are given by Madigan (1934). Commissioned by Central Australian Silver, Lead & Copper Mining Company NL, he undertook a property examination on 21-24 August 1934.

Blanchard (1936): Blanchard (1936) inspected the property for the Mt Isa Mines Limited (owned by American Smelting and Refining Company). He provides interesting details on transportation, water supply and costs at that time, as well as valuable information on the general geology, exploratory underground development and mineral potential.

Hossfeld (1937): The next currently available record of the general geology, aerial photography, mine geology, underground workings, mineral potential, water supply and ore treatment of the Home of Bullion copper deposits is given by Hossfeld (1937), as part of the investigations carried out by the Geophysical Survey of Northern Australia.

Sullivan (1950): After a gap of 13 years the next available reports on the Home of Bullion mine were those by Sullivan, Brittingham and Thomson in 1950. Sullivan briefly summarised the main features of the general geology, mine geology, mine workings and mineral potential of the Home of Bullion copper deposits.

Thomson (1950): Thomson (1950) undertook an eight day field examination, magnetometer survey and sampling assessment for Zinc Corporation Limited in May 1950. He summarised the main features of the general geology, mine geology, workings and production, mining operation and mineral potential of the Home of Bullion copper deposits.

Brittingham (1950): In a preliminary metallurgical report on flotation of the Home of Bullion mineralisation, Brittingham (1950) provides some interesting facts on previous exploratory underground mine development as well as on two completed diamond drill holes.

Bell (1953, 1954): The Bureau of Mineral Resources’ Resident Geologist at Alice Springs (Bell, 1953) undertook an assessment of Home of Bullion mine.

Australian Geophysical (1965b): In 1965 a private company (Australian Geophysical Pty. Ltd.) undertook geophysical surveys (mainly induced polarisation) and soil sampling by shallow drilling over the Home of Bullion mine.

Drown (1992): Aberfoyle Resources Limited examined the abandoned Home of Bullion in 1992 to assess the regional potential of EL 6910 which surrounded the MLC’s covering the old mine workings.

Goldstake Exploration Inc. (2001-2012): Goldstake undertook an initial diamond drilling programme in June-August 2006. It comprised 15 drill holes totalling 1,406m on both the northern and southern groups of lodes. Seven of the drill holes failed to intersect the targeted lodes so, in September 2006, Goldstake engaged Roy Cox & Associates to carry out a detailed examination of the prospect and of the drilling results to ascertain the reasons for this situation. The main reasons were due to the absence of a detailed topographic survey, a detailed geology map and an accurate 3-D correlation of the surface geology with underground workings and diamond drill holes.

 

Prospect D - Leapfrog 3D