Mining Operations And Mining Methods Porcupine

Mining Operations And Mining Methods Porcupine
       Mining operations Porcupine is located in Timmins, Ontario, one of the world’s great gold producing camps. Located within the city limits of Timmins, Ontario, the Porcupine complex includes approximately 38,000 hectares of mining claims. Paved-road access is readily available, as the principal properties. The Porcupine mines consist of ultramafic and mafic volcanic rocks of the Keewatin subgroup overlain by sedimentary rocks of the Timiskaming group. The lands lie adjacent and to the north of the regionally significant Porcupine Destor Fault. Gold mineralization is found in a number of different structural settings and consists of continuous quartz carbonate veins, quartz tourmaline veins, quartz stockworks and gold associated with disseminated sulphides.
      Porcupine mining consists of the Hoyle Pond and Dome underground mines, the Hollinger open pit mine, several large tonnage stockpiles, and a central milling facility. Progress is steadily advancing on a deep underground shaft (winze) that will provide increased access to zones such as the TVZ and VAZ in the underground Hoyle Pond mine operation and significantly extend the mine’s productive life.

Methods of gold mining operations Hoyle Pond
      Methods of gold mining operations Porcupine, exploration drilling at underground. The Hoyle has demonstrated improving gold grades and the extension of several gold structures at depth. This success is spurring new investments in mine development to position the revitalized Porcupine mine complex for long-term success.
      The Hoyle Pond underground mine is accessed by decline and by a shaft. The current winze configuration has the potential for expansion to access below 2,000 metres. Mining methods employed are conventional cut and fill, shrinkage, panel mining and longhole methods in wider zones.
      Gold is recovered using a combination of gravity concentration and cyanidation techniques. The circuit consists of primary, secondary and tertiary crushing, rod/ball mill grinding, gravity concentration, cyanide leaching, carbon-in-pulp gold recovery, stripping, electro winning and refining.

Methods of gold mining operations Hollinger       The Hollinger open pit is located in the City of Timmins adjacent to residents and businesses. The pit will reclaim 250 acres of currently unusable and unsafe land for future safe public use. All permits have been received following a period of public consultation and the installation of a monitoring system ensuring the pit can meet the Best Management Plan, signed with the City of Timmins, and the Ministry of Environment’s noise, air and vibration guideline limits. Site stripping and mining activities currently take place during the day until the Environmental Control Berm is constructed around the pit periphery. The berm is designed to reduce noise levels and once complete, fulltime 24 hour operations will commence.
      In 2015, Porcupine marked its 105 th year of continuous mine and mill operations and has produced more than 67 million ounces of gold since production began.  In 2014 gold production totaled 300,000 ounces. Production during 2015 is expected to be between 300,000 and 320,000 ounces.