Best Answer: The Canadian Shield is the oldest part of the North American continent. It was formed over 1 billion years ago probably through the collision of volcanic island archs that built on to each other.It is made of igneous rocks and highly metamorphosed rocks. I'm sure there are some sedimentary rocks as well.nswers. Best Answer: The Canadian Shield is the oldest part of the North American continent. It was formed over 1 billion years ago probably through the collision of volcanic island archs that built on to each other. It is made of igneous rocks and highly metamorphosed rocks.
Saturn is one of the gassy planets and is huge compared to the size of Earth. Saturn has a diameter of 120,536km much bigger than Earth. Earth, however only has a diameter of â¦ 12,756km.
AlthoughÂ­ Jupiter, Uranus and Neptune have rings of their own, none are as spectacular as Saturn's. Saturn's rings are also one of the great mysteries in space. But as our spacecraft edge closer than ever to the rings, we're getting a more complete picture of what they're made of and how they came to exist. Saturn has six main rings, each composed of thousands of tiny ringlets. The rings are huge -- the biggest ones spanning 170,000 miles (273,588 km) in diameter. They are, however, proportionately very thin -- only about 650 feet (200 meters) thick. They aren't solid, as they appear from Earth, but are instead made up of floating chunks of water ice, rocks and dust that range in size from specks to enormous, house-sized pieces that orbit Saturn in a ring pattern.