... batholiths. Over the years the rocks have become exposed by a variety of processes, such as weathering and erosion. While the granite cools. It contracts and cracks, this has enabled a series of joints to appear at irregular intervals. The same process allows large crystals to form in the granite. Tors are the most distinctive granite landforms. They are formed when granite is chemically weathered. Rain water penetrates the unexposed granite were the joints have widened from frost shattering, which has causes core-stones to form. The joint spacing is important in tor formations; large, resistant core-stones are left when the joints are spaced far apart. Clay-filled depressions develop when the joints are closely packed and weathering is more active. The joints in the tors are visible in many photographic images which are the result of forces both exterior and interior that acted on the stone as it was forming and cooling ...

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