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Most mountains on Earth occur within relatively well-defined, narrow belts separated by wide expanses of much lower-lying ground. Their distribution is not random but is caused by the now well-understood geological processes of plate tectonics. Some mountains mark the site of a former plate collision where one continental plate has ridden up over another, resulting in a zone of highly deformed and elevated rocks. Others are essentially volcanic in... more...

This introductory book explains in simple terms what geology can tell us about the world. Many objects of great beauty which excite our curiosity, such as crystals or fossils, are to be found by examining rocks. Those searching for and examining such objects gain much more by knowing how and when they originated. Fossils, while interesting in themselves, tell us from their context in geological time of biological evolution, and these clues give an... more...

This book is written to explain the key concepts of tectonics and rock structures to students and to the interested non-specialist, especially those without a strong mathematical background. The study and understanding of geological structures has traditionally been guided by the rigorous application of mathematics and physics, but this book has avoided mathematical equations altogether and has reduced the geometry to the minimum necessary. The... more...