Coogee Gold Project
Location and Access:
The Coogee Gold Project (CGP) is located 56km southeast of Kalgoorlie in the heart of the Western Australian Eastern Goldfields. Access to the project is via the graded Kalgoorlie to Mount Monger Road, thence via station tracks to the project site.
Ramelius successfully mined 140,000 tonnes of ore for 22,000oz of gold from the Coogee open pit in 2014. The high grade open pit ore (5.2 g/t Au) was processed at the Company’s Burbanks Treatment Plant near Coolgardie.
The Coogee gold mine is hosted within a sequence of intermediate sub-volcanic rocks, comprising dacite and rhyolite porphyries. The primary mineralised zone appears to sit within the dacitic unit, 10-15m above and parallel to the rhyolite porphyry contact.
The primary ore zone occurs as a shallow dipping (-30° to -35° to the SW), 2 to 6 m thick lode. Drill core shows a zone of moderate foliation and stronger silica-pyrite alteration/veining which correlates with the gold mineralisation. Copper anomalism and alteration occurs over a broader zone than the gold mineralisation but appears to be an unrelated event. While the host stratigraphy is somewhat less typical of Archaean lode gold deposits the Coogee gold mineralisation is interpreted as a relatively typical shear hosted silica-pyrite lode style gold deposit.
Exploration focus during 2016 shifted to testing the Coogee Beach Prospect, below 20m of Tertiary lake sediments and clays within Lake Lefroy. Shallow Aircore and diamond drilling has confirmed gold anomalism associated with a magnetite rich diorite intrusive. Exploration is continuing to spatially map the extent of the intrusion(s) using magnetics and gravity in an attempt to define future drill targets.