Larder Lake Gold Field Trip

Abstract 1991 JUNE 02 SUNDAY MORNING AND AFTERNOON TOUR will be by bus, which will carry the lunches so we can eat wherever we happen to be around noon time. The two longest walks from the bus should total less than 4 km “round trip”. If time becomes too short to visit to-day’s 10 tour stops (No. 6 to 15), one or more might have to be left out. This will ensure that we arrive back at the motel in time to prepare for the evening meal followed by the talk on American Barrick’s Holt-McDermott gold mine, where you will go underground to-morrow and receive a mine description handout. For a description of Larder Lake area geology see "The Sedimentary Phase that initiated the Concentrating of Gold Ores, MatachewanKirkland Lake-Larder Lake area, Ontario, Canada" in this Guidebook. The Larder Lake area (mainly Kerr-Chesterville and Omega mines) has produced almost 11 million Troy ounces of gold at an average grade of about 1/4 ounce of gold per short ton. Similarities with the Larder Lake gold ore type can be found throughout Canada’s Abitibi sub-province such as in the Porcupine (Timmins) gold area, and elsewhere in the world such as in Western Australia. For location of Larder Lake Gold Field Trip Stops see Figure 1. From the Bon Air Motel, proceed 6. 2 km west along Highway 66 to the junction with Highway 112, turn left (south) and proceed along Highway 112 to the junction with Highway 11 at 26. 4 km (to-day’s cumulative trip total).