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.
  The planet Mercury with a diameter of 3030 miles (4878 kilometers) is smaller than Jupiter's moon Ganymede (5276 km) as well as Saturn's moon Titan (5150 km).Jupiter's â¦ moon Callisto (4800 km) as also nearly the same size as Mercury.upiter and Saturn have moons larger than Mercury. Jupiter's moon Ganymede is the largest moon in the solar system and Saturn's moon Titan is the second largest moon in the so â¦ lar system. 6 people found this useful.