forestry is the main industry in the canadian shield.
what is the main industry in the canadian shield?
forestry
the canadian shield is one of the world's richest areas in terms of mineral ores. it is filled with substantial deposits of nickel, gold, silver, and copper. throughout the shield there are many mining towns extracting these minerals. the largest, and one of the best known, is sudbury, ontario. sudbury is an exception to the normal process of forming minerals in the shield since the sudbury basin is an ancient meteorite impact crater. ejecta from the meteorite impact was found in the rove formation in may 2007. the nearby but less known temagami magnetic anomaly has striking similarities to the sudbury basin. this suggests it could be a second metal-rich impact crater.
canadian shield
section::::canadian shield.





























about 61% of ontario is covered by the canadian shield, mostly with precambrian rock. the canadian shield spans much of northern ontario and is subdivided into three main geological provinces; the superior, southern and grenville. 





























section::::canadian shield.:superior province.





























the superior craton or superior province is an archean craton. it is a 160-mile thick section of stable continental crust formed beginning (4.031 billion years ago-present) which forms the core of the canadian shield lying north of lake superior for which it is named. it is located roughly north and west of sudbury
geology of ontario