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Seabridge Defines New Gold-Copper Porphyry Target at Iskut
Toronto, Ontario--(Newsfile Corp. - October 21, 2019) - Seabridge Gold (TSX:SEA) (NYSE:SA). Ge...
About this update from Seabridge Gold Inc
[{"type":"text","content":"Seabridge Defines New Gold-Copper Porphyry Target at IskutDrill program to test this target to commence next summerToronto, Ontario--(Newsfile Corp. - October 21, 2019) - Seabridge Gold (TSX:SEA) (NYSE:SA). Geophysical surveys, geochemical sampling and detailed mapping were completed this summer at Seabridge's 100%-owned Iskut Project in northwestern British Columbia. This work has identified a large intrusive system at relatively shallow depth that is likely responsible for the Quartz Rise Lithocap and elevated gold and copper concentrations within a geological environment remarkably similar to Seabridge's nearby KSM Project. This year's objective was to define the geophysical limits and assess the geochemical and geological expression of a possible porphyry intrusive system which would account for the mineralization found at Quartz Rise. This work included 1.4 square kilometers of 3D IP surveys, 260-line kilometers of high resolution magnetic surveys and 184 surface geochemical samples. Previous drilling at the Quartz Rise Lithocap focused on testing for high-grade epithermal precious metal occurrences associated with the uppermost portion of a porphyry mineral system. Results determined that the Quartz Rise Lithocap had been substantially eroded. However, a hydrothermal breccia (diatreme) discovered in 2018 was found to contain clasts of porphyry-style vein fragments which confirmed an underlying porphyry source for the lithocap. This breccia feature is enclosed by an IP chargeability anomaly coincident with a magnetic high, a porphyry geophysical signature (see illustrative cross section below). Detailed work on the surface expression of the diatreme found that it plunges to the south toward the highest intensity chargeability anomaly and geochemical signature. The geophysical footprint was therefore expanded to the south and southwest into an area where glacial erosion had exposed the system vertically to a depth of over 800 meters. Surface mapping and sampling of this vertical exposure found extensive gold and copper anomalies within favorable thermally altered wall rock. Several intrusions have been identified in association with this diatreme and these features have been dated to about 186 million years, the same age as our KSM deposits.Seabridge Chairman and CEO Rudi Fronk commented: \"We believe we have identified a ne...