Yukon Gold-Silver File is an inventory of gold and silver-bearing mineral deposits and occurrences in Yukon. It follows the 1984 Open File entitled Gold-Silver Deposits and Occurrences in Yukon Territory by J.A. Morin and D.A. Downing. Other sources of information include: 1) Indian and Northern Affairs Canada Reports, including a) Yukon Exploration and Geology reports up to and including Yukon Exploration 1984-86 (noted as YEX, YEG and YGE), and b) Mineral Industry Reports (MIR); 2) preceding Mineral Industry Reports and other geological reports by the Geological Survey of Canada (GSC Papers, memoirs, bulletins and maps); 3) assessment reports (only non-confidential information is included) filed by mineral exploration companies with Indian and Northern Affairs Canada; 4) university theses; 5) personal communication with mineral explorationists and prospectors; and 6) data accumulated by property investigations by J.A. Morin and D.S. Emond (until August, 1987).

One third of the gold and gold-silver deposits in Yukon were examined and sampled in 1980 to establish a framework of geology and rock chemistry from which variations within and between deposits could be detected and evaluated. Lithologic units within the samples were analyzed for Au, Ag, B, Mn, Cu, Zn, As, Se, Tl, Pb, Bi, Sb, Te, W, Hg, Mo and Cd - elements commonly associated with precious metal deposits. A problem which prevented systematic sampling of many deposits is the lack of underground access and the locally intense oxidation of vein outcrops. Three aspects of the rock geochemistry are discussed:: 1) different levels of element concentration in the deposits and implications regarding pathfinder elements; 2) distribution of elements in deposit types; and 3) element distribution in specific deposits. The geology of the deposits is summarized from published works and interpreted in light of recent theories on gold deposits. This report emphasizes common features of the deposits and several genetic models.

Geological map (1:1,000,000 scale) of the Yukon Territory, including platinum potential, platinum occurrences, a list of selected geological units with PGE potential, density of geochemical anomalies for nickel, chromium and cobalt and selected stream silt anomalies for nickel, cobalt and chromium. Accompanying the map is a brief report describing: Yukon MINFILE occurrences with reported PGE mineralization and anomalies; interpretation of regional silt geochemical anomalies; placer PGEs in Yukon; gravity anomalies; and PGE potential in Yukon (concepts and localities).

This report includes a summary of the mineral exploration history of Yukon, an outline of the geology of its southern part, and brief descriptions of the most important mineral occurrences. The report brings together current ideas of the geology and examines the metal deposits in this context.

not_specified

This publication is intended as a snapshot of the hard rock mineral resources of Yukon. It is up-to-date as of December 1, 2023. The tables herein have been compiled from information derived from Yukon MINFILE – A database of mineral occurrences, and from various technical reports and information filed in SEDAR (system for electronic document analysis and retrieval). This document does not include cut-off grades for resources and reserves. Numbers have been rounded for readability. Tonnages and grade are provided in metric measure – converted from imperial as required. Total contained metals are estimated as a result of tonnage multiplied by grade; reported values are converted to either metric or imperial as required. Amounts are for all deposits/zones on the property. Deposit resources are identified as being compliant with either the minimum requirement for mineral resources and reserves as defined by the Canadian National Instrument for the standards of disclosure for mineral projects (NI 43-101), the Australasian code for reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC) standards or the disclosure requirements for the mining companies in the United States, in accordance to the Securities and Exchange Commission Industry Guide 7 (S-K 1300). Deposits that are not compliant with these definitions are identified as historical estimates. The Owner/optionee indicate the company owner as stated in the resource estimate or on the company website. In the case of historical resource calculations where there is no resource estimate or website available, the owner is the registered quartz claim holder. The reader is encouraged to refer to the original reference for detailed information. We accept no responsibility for any errors or omissions.

Detailed exploration conducted during 2006 in the western part of the Skukum Creek deposit has revealed new structural, mineralogical and geochemical features. The deposit incorporates a number of (at least six or seven) sub- parallel narrow mineralized zones, coincident with andesite-dacite-rhyolite dyke swarms extending for at least 1 km along strike and for hundreds of metres down-dip. Various mineralized zones differ in size, structural setting, intensity and composition of mineralization, and, in total, form a large mineralized package more than 200 m wide, corresponding to a property- to district-scale fault zone extending for over 10 km and traced by a dyke belt. Significant potential exists for the exploration of these structures along strike and down-dip. The diamond drilling intersected numerous high-grade intercepts of gold and silver mineralization corresponding to the low-sulphidation sub-type of epithermal gold-silver deposits. However, strong enrichment in base metals (up to 25% of combined Zn+Pb+Cu) and arsenic suggests essential differences from typical epithermal mineralized systems.

This publication is intended as a snapshot of the hard rock mineral resources of Yukon. It is up-to-date as of November 2015.