Geology and Mineralization:
The Cecilia project is centered on a large middle Tertiary age (Oligocene) rhyolite flow-dome complex that forms the prominent topographic feature of Cerro Magallanes. The dome complex intrudes and unconformably overlies a sequence of marine clastic sedimentary rocks consisting of interbedded siltstone, fine-grained sandstone and thin layers of intraformational, immature pebble conglomerate (middle Cretaceous Cabullona Group), providing a perfect setting for replacement style mineralization at depth. This sedimentary sequence also extends over the Cecilia 1 and 2 concessions, in contact with Paleozoic limestone and Precambrian granite uplifted through horst and graben formation.
Gold mineralization is concentrated along NW and NE regional structural lineaments. Riverside Resources identified four targets on the Cerro Magallanes dome and six others outside of the dome. All of them show extensive alteration and sub-continuous high grades. Surface geochemistry indicates that that the areas sampled are above the boiling zone suggesting gold bearing mineralization could be intersected at shallow depth at these targets.
Figure 3: Geological map of Cecilia 1 and Cerro Magallanes
