Mayo Lake Minerals - Yukon Properties
Mayo Lake Minerals Inc. (MLM) is a Yukon exploration company, focused on discovering the bedrock source of placer gold on, and in the vicinity of its, claims in the Mayo placer district (Figure 1). Miners in the district have consistently produced gold from creeks for over 100 years and have always believed that the gold’s source is located in the uplands surrounding the placer creeks. Prior to MLM acquiring the properties in 2011 little to no modern exploration has ever been completed in the areas covered by MLM’s projects.
MLM believes that the Mayo placer district has the same potential as the White Gold district south of Dawson City where a number of projects are moving forward to mine development. Nearly every creek in the Mayo district is a current or past producer of gold, but very little modern exploration techniques have been employed in search of the gold.
Mayo is the center of mining investment in the Yukon. Active projects include Victoria Gold’s construction of the Eagle Gold deposit, slated for first production in September 2019; ongoing resources expansion at Alexco’s Keno Hill Mines; and major investments in nearby projects by Kinross Gold, Barrick Gold and Newmont Minerals. All this activity is a testament to the potential for gold discovery of this historic placer district.
MLM has successfully defined highly prospective areas and drill targets after MLM has completed airborne magnetics (Figure 2) over all its properties and reconnaissance and grid soil sampling over a portion of its properties. A good proportion of each property has yet to be screened fully by soil geochemistry or prospecting.
MLM’s Anderson-Davidson and Carlin-Roop projects are fully permitted for advanced exploration. On Anderson-Davidson, MLM has defined a 10-kilometre-long gold trend with three robust drill-ready gold targets. Much of the 10km trend and the remainder of the property have not been screened by geochemical or geological surveys. Trail-Minto has an attractive 3.5km long gold in soil anomalies associated with prospective bedrock and Carlin-Roop has an attractive 1km long drill ready silver in soil anomaly at the east end of the Keno Hill silver camp.
Figure 1. Association of placer gold occurrences, gold in soil anomalies and Mayo Lake Minerals’ properties.
Figure 2. Detailed and regional total magnetic intensity on Mayo Lake Minerals properties.
Anderson-Davidson is the most advanced property in MLM’s portfolio, fully permitted for advanced exploration with three drill ready targets within the greater than 10km long Anderson Gold Trend (Figure 3). Other positive indications for gold mineralization are two producing placer operations, as well as numerous former placer producers. Test pits have yielded float, assaying up to 3.5g Au/t within 2 Km gold in soil anomaly. A 640 metre reverse circulation drill program tested one anomaly within the Anderson Gold Trend and intersected a gold-bearing system. One structure yielded 0.77g Au/t over 6.1m, including 0.90 g Au/t over 3.1m. Anderson-Davidson has a four-wheel-drive road that runs the length of the claim group for which MLM has initial permitting to potentially upgrade.
Trail-Minto contains the Roaring Fork Stock, a member of the Tombstone Plutonic Suite with dimensions similar to the Dublin Gulch stock; the later hosts Victoria Gold’s Eagle Gold deposit. Two past producing placer operations are present on creeks draining this property. Numerous gold in soil anomalies suggest portions of the Roaring Fork Stock and adjacent country rock may be mineralized (Figure 4). A series of parallel gold anomalies, 3,500 m in length, straddle the Roaring Fork Stock-country rock contact. Trail-Minto is road accessible.
Carlin–Roop is located on the eastern margin of the Keno Hill Silver Camp and is fully permitted for advanced exploration. This property has a 1km long silver in soil anomaly with a core zone of 15-45g Ag/t in soil (Figure 5). Investigating the potential for high grade Keno Hill type mineralization can easily be completed through trenching or drilling. The active placer operation on Granite Creek maintains a seasonal road through the property.
Edmonton sits on the Robert Service Thrust between the eastern arms of Mayo Lake. It is bordered on one side by Edmonton Creek, a former placer gold producer. Numerous mafic stocks, structures, geophysics and geochemistry point toward gold mineralization. Highlights include a gold-in soil anomaly within the northern part of an alteration zone defined by geophysics and an open 1000m long broad band of multielement, including gold and copper, anomalous and elevated values in soil (Figure 6 and 7).
Cascade is located on highlands between two former placer gold operations on Cascade and Nelson creeks. This claim group is easily accessible from Mayo Lake. Definition sampling in 2017 delineated five gold in soil1 anomalies (Figure 8 and 9); all are open in at least one direction. One soil sample yielded 2.25g.Au/t. Geophysics and reconnaissance soil sampling indicates further potential for gold mineralization on the untested part of Cascade.
Figure 3. Drill-ready targets on Anderson Gold Trend.
Figure 4. Gold in soil anomalies paralleling Roaring Fork Stock plus representative total magnetic intensity covering Trail-Minto.
Figure 5. Silver and gold in soil anomalies on Carlin-Roop.
Figure 6. Gold in soil anomalies and their associations with magnetic anomalies and lineation on Edmonton.
Figure 7. Gold in soil results superimposed on magnetic linear features at Cascades.