CNE believe that the majority of future large greenfield porphyry Cu-Au discoveries will be made as the result of deep exploration of advanced argillic alteration (lithocap) systems. Recent examples of successful lithocap exploration programs are the very large Tujuh Bukit and Onto copper-gold deposits in Indonesia.
The CNE Principals have significant lithocap exploration experience across numerous volcanic arcs and geographies including Mongolia, Philippines, Indonesia, Ecuador, Japan, Turkey, Chile and Argentina. They have been directly involved in the discovery of mineralised porphyry stocks under lithocaps including the giant Onto Cu-Au deposit in Indonesia.
The CNE Principals have had significant success in the execution of lithocap exploration programs through the assessment of integrated mineralogy, geochemistry, geophysics and geology datasets.
CNE has developed targeting methodologies for lithocaps and believe that an increased potential for economic discoveries in these environments results from locating the higher-grade mineralisation that is commonly developed at the top of mineralised stocks. In addition, exploration of lithocaps may lead to the discovery of economic Au and Cu-Au mineralisation high within acid alteration systems.