The Maitland Copper Prospect forms part of the Maitland Project is situated about 200k by bitumen sealed road from CSD Mt Garnet Processing plant and 30 kilometres southwest of CSD’s Surveyor Project base metal mine.
Between 2005 and 2008, Glengarry Resources Limited (Glengarry) explored the area by specifically targeting anomalous copper-in-soils geochemical anomalies that had been identified by Laskan Minerals in 1969, along the interpreted trend of the Maitland Shear Zone.
Kagara acquired the Maitland copper deposit in September 2008, Snow Peak Mining acquired it from Kagara in 2013 ,and CSD acquired it from Snow Peak Mining in 2016.
The regional geology of the Maitland Project is depicted below.
Mineralisation is hosted in two distinct shoots (northern and southern) for which there are footwall and hanging wall domains. For each shoot there are distinguishable grade domains.
Mineralisation occurs as a shear-controlled, quartz body with disseminated chalcopyrite and molybdenite hosted in calc-silicate gneiss with the ore body cut by a number of amphibolite sills. The mineralisation is associated with two 45°-60°, south-southwest plunging, lozenge shaped orebodies. The shape of the orebodies is controlled by the intersection of subvertical shears with the shallow south plunging stratigraphy. The mineralisation appears epigenetic, structurally controlled and possibly coeval with north south trending shears.
Drilling at Maitland is limited to a depth of 200 m through the ore position, except for one hole which intersected 14 m at 1.48% Cu from 309 m. This intersection lies just below the interpreted down-plunge position of the Southern Lens. The deposit remains open down plunge on the Southern Lens, and along strike (and possibly down plunge) to the south on the Northern Lens. Previous drilling has outlined a higher-grade core (+2.5% Cu) to the Southern Lens, demonstrating the presence of potential extensions of higher-grade mineralisation.
Maitland Project – Mineralisation Domains
Maitland JORC (2004) Resource Estimation
The last report of Mineral Resources for Maitland, was made in the 2010 Kagara Limited Annual Report. The Mineral Resource was reported in accordance with the JORC Code 2004. The Mineral Resource estimate has not been updated to comply with the JORC Code 2012 on the basis that the information used for the estimate has not materially changed since it was last reported.
The estimate is summarised below.
The Mineral Resource was estimated using a total of 266 drill holes that comprise a combination of reverse circulation and NQ2 sized diamond core. No information is available on the sampling or assaying methods used.
Cube Consulting estimated the Mineral Resource in 2008 using the ordinary kriging method and applied a 10% Cu top-cut to restrict high grades.
The grade estimation method used was appropriate for the Maitland style of mineralisation.
No Ore Reserve has been estimated for Maitland, however metallurgical test work and a high-level scoping study were undertaken by Glengarry Resources in 2007 and 2008 respectively.
Maitland Deposit Mineral Resource Estimate as at March 2008
1Mineral Resources are reported above a 0.5% Cu cut-off grade
Maitland Deposit – Resource/Exploration Upside
Exploration upside at the Maitland deposit consists of down dip extensions to the known mineralisation in addition to repeats along the host structural corridor.