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New Afton Mine

The New Afton copper-gold mine located about 350 kilometers northeast of Vancouver in the south-central interior of British Columbia. The New Afton mine 10km from the center of Kamloops is, which has a population of about 90,000 in southern central British Columbia, Canada,  and it is directly accessible from the Trans-Canada Highway.

The mine is owned 100% by New Gold Inc and property is only 10 kilometers from the regional hub of Kamloops and is easily accessible by paved road.  Kamloops acts as a hub for the mines in the region and is a popular destination for tourists and campers. 

The New Afton mine occupy the property the site of the historic Afton mine, a previous operation of Teck Resources Limited ( “Teck” ) and has an open pit mine, underground workings, historic support facilities, a new concentrator and recently constructed tailings facility.

The New Afton deposit of extending immediately below the Afton mine open pit in the southwest. New Afton gold mine began in June 2012, and production began in July 2012  ahead of schedule initial estimates. The timetable commercial production before underground operation is expected to produce an average of 85,000 ounces of gold and 75 million pounds of copper per year over a mine life of 12 years. 

The Company’s holdings in the area comprise the Afton Group and the Ajax Group. The New Afton deposit lies within the Afton Group. The Afton Group consists of 61 mineral claims included in a mining lease issued by the Ministry of Energy, Mines and Petroleum Resources on 29 November 2006 (the “Afton Mining Lease”). The total area of the Afton Mining Lease and all other claims is 12,450.4 hectares.

Geology And Mineralization New Afton Mine

The New Afton deposit part of a larger copper-gold porphyry includes circle within the productive the Quesnel Trough island-arc terrane,  host to many of the major copper and gold fields in British Columbia.  Pre-mineral rocks consist of intermediate volcanic rocks on the Triassic Nicola formation belong to mafic. Regional scale fault zones act as major controls at the batholithic rocks and associated in the area porphyry mineralization. 

The majority of deposit New Afton occurs as tabular, near vertical, southwest plunging body at least 1.4 kilometers along strike measurement of about 100 meters wide, a  with a down-plunge extent of over 1.5 kilometres. The deposit remains open to the west and at depth. 

Mineralization of copper sulphide veinlets and disseminations localized to brecciated margins between altered porphyry intrusions and Nicola volcanic rock is characterized. Copper occurs mainly as chalcopyrite and lesser bornite, with secondary chalcocite and native copper occurs in the upper nearer surface parts of the deposit. Gold occurs as sub-micron grains with copper sulfides

Since the start of commercial production in 1977, the New Afton mine has more than 800,000 ounces of gold and 850 million pounds of copper from both open pit and underground operation. 

Mineral Ore Processing In New Afton 

In New Afton, block caving, an innovative extraction process is used in excess produce from 11,000 tons per day. The block made cave is 600 meters below the surface and serviced by five main levels, extraction, undercut, apex, transport and ventilation. The final footprint of the cave will cover an area of ​​700 m in length from 100-150 in width.

Ore is specified rates are pulled over the footprint in advance in order to maintain an optimal cavity profile and limiting dilution to establish during its propagation. Approximately 202 drawbells the mine will be built to facilitate the removal of ore from the cave on the first phase of life.

A metro gyratory crusher, which opened in January of 2013, can mine ore tonnage can to maximize rates ore tonnage throughput rates. After the ore is crushed, it is then transferred into the underground conveyor system which transports the crushed ore 4.5 km to the surface.

On the surface, the ore is then processed by a prior art sulphide flotation concentrator. The most important key components are a SAG mill, a ball mill, pebble crusher, flotation cells and filter presses. 

The New Afton mill is designed to process 11,000 tpd (4 million tons per year) of ore at full capacity, for recovery copper, gold and silver. The mill will process a mixture of primary, transition and supergene ores using conventional crushing, grinding and concentration processes. Mineral separation will be flotation by gravity concentration and differential. A sharpening stage will be included in the flotation circuit. Life of mine recoveries anticipated to reach 88% copper, 87% gold and 75% silver.

Video New Gold In New Afton Mine, Kamloops,BC 
( Mining Methods )

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