Labels:bulletin board | earth | hakham | poster | reckoner | sky OCR: The Earth's outer layer is made up of rocky slabs called tectonic plates that are slowly but constantly moving around the Earth's surface The movement of these plates form the basis of much of the Earth's geologic activity Because most of this activity is at the boundaries of plates, these areas are rich mineral deposits PLATES AND DEPOSITS Most mineral deposits originate from igneous rocks which themselves form from molten rock called magma Since a lot of ma gma produced at plate boundaries (where tectonic plates come together or pull apart), many mineral deposits are found along these boundaries The best example of this is the abundance of copper deposits found along the ancient and modern convergent plate boundaries of the Pacific Rim especiall throughout the Andes in South America MID ...
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