Pacific Lime and Cement (ASX:PLA) has finished a strategic review of its Star Mountains Copper-Gold Project in Papua New Guinea’s West Sepik Province.
Pacific Lime and Cement appointed geological services company H&S Consultants to prepare and review the Olgal deposit mineral resource estimate.
H&S Director Simon Tear acted as the review’s “competent person” and estimated that the deposit contains 626 million tonnes at 0.27% copper and 0.26 grams per tonne of gold, as well as 0.53% copper equivalent at a 0.2% copper equivalent cut-off grade.
This inferred estimate is based on 23 diamond drill holes that span a combined 8.9km, with nominal drill spacing of between 200m and 300m.
Drilling intersected mineralisation and structures at high angles to minimise sampling bias between 2010 and 2017.
Sub-sampling work involved crushing, pulverising, multi-acid digestion, and inductively coupled plasma atomic emission spectroscopy (ICP-AES) analysis for base metals, as well as fire assays.
Quality assurance and quality control procedures included standards, blanks, and duplicates that show “acceptable accuracy and precision with no material bias”.
Drill hole collar surveys used both handheld GPS and light detection and ranging (LiDAR) topographic control technology.
Pacific Lime and Cement, formerly known as Mayur Resources, is a copper and gold producer with assets mainly in Papua New Guinea and the Asia-Pacific region.
Write to Richard Szabo at Mining.com.au
Images: Pacific Lime and Cement
