Gray Earth—Clays and the Rise of Granite
Lecture no. 22 from the course: The Origin and Evolution of Earth: From the Big Bang to the Future of Human Existence
Taught by Professor Robert M. Hazen | 32 min | Categories: The Great Courses Plus Online Science Course
Probe the essential features of clay minerals, which are abundant on both Earth and Mars. Then investigate why Earth has so much granite. Trace the origin of this rock, which abounds in Earth’s continents but is rare elsewhere in the solar system.