Host Rocks. The environments being targeted for continued exploration are shown in three representative cross sections which span the area of the current resource calculation and structures under study: · Section 6800 NE (Appendix 9-1) shows the principal relationships involving the CX fault and related strands. · Section 7100 NE (Appendix 9-2) is 300 feet further NE along strike of the CX fault zone, and picks up the definable beginnings of the Range Front fault zone. · Section 7700 NE (Appendix 9-3) is another 600 feet further NE along the same trend, and shows principally the Range Front fault zone. In all three sections, several features of stratigraphy and structure are evident. Host rocks for gold mineralization at Pxxxxx are a sequence of interbedded shale, siltstone, and limestone of the Upper and Lower Comus Formation of Ordovician age. These rocks are exposed in outcrop and the mine pits along the east flank of the Oxxxxx Mountains. The Upper Comus is a gently east-dipping complex consisting of black carbonaceous shale interbedded with varying, but minor, amounts of calcareous siltstone and silty limestone. Beneath the Upper Comus lies a large volume of rock assigned to the Lower Comus, which consists of a monotonous sequence of interbedded shale and limestone in roughly equal proportions. Local variations in the Upper and Lower Comus have been assigned unit names of “Ocls” and “Ocib” depending on relative abundance of limestone versus shale. Within the Lower Comus interbedded shale/limestone unit, there are large irregular pods of Ordovician contact-metamorphosed carbonates, ranging from pure marble to garnet-epidote skarn to calc-silicated, wollastonite-dominated rocks. These are combined as skarn/marble (“Osm”) and shown separately on the cross-sections. Finally, the lowest defined stratigraphic unit is the Cambrian Pxxxxx, ordinarily a maroon colored hornfelsed phyllite in the Pxxxxx mine area. Structurally, the cross-sections are dominated by two large fault systems. The CX fault zone, appearing on 6800 NE and 7100 NE, is a zone of brittle fracture within the Ocib package, and creates one dominant and several narrower splays of mineralization. The Range Front fault zone (displayed on cross-sections 7100 NE and 7700 NE), in contrast, is much thicker and persistent, and involves the Cambrian/Ordovician contact zone in extensive brecciation. On the sections, the contact zone is represented as a single line, but in reality is obliterated in many core interc...
