The correct answer is D. All of the above.
The northeastern zone, northwestern zone, and southern zone are all areas of high mineral concentration. The northeastern zone is home to the Abitibi Greenstone Belt, which is one of the largest and most important mineral belts in the world. The northwestern zone is home to the Superior Province, which is another major mineral belt. The southern zone is home to the Canadian Shield, which is a vast area of Precambrian rocks that is rich in mineral deposits.
The Abitibi Greenstone Belt is a geological formation in northeastern Canada that is known for its rich mineral deposits. The belt is about 2,000 kilometers long and 500 kilometers wide, and it contains a variety of minerals, including gold, silver, copper, nickel, and zinc. The Abitibi Greenstone Belt is one of the most important mineral belts in the world, and it has been a major source of minerals for centuries.
The Superior Province is a geological province in northwestern Canada that is known for its rich mineral deposits. The province is about 4,800 kilometers long and 1,900 kilometers wide, and it contains a variety of minerals, including gold, silver, copper, nickel, and zinc. The Superior Province is one of the largest and most important mineral provinces in the world, and it has been a major source of minerals for centuries.
The Canadian Shield is a vast area of Precambrian rocks that covers much of eastern and central Canada. The shield is about 5 million square kilometers in size, and it is one of the oldest and most stable landmasses on Earth. The Canadian Shield is rich in mineral deposits, including gold, silver, copper, nickel, and zinc. The shield has been a major source of minerals for centuries, and it is still an important mining region today.