Investigate the natural architecture and origin of Joshua Tree National Park’s landscape with Tor Lacy, Professor of Earth Sciences. Participants will be introduced to basic geologic principles including major rock groups, plate tectonics, mountain building, and the impact of weathering and erosion. Tor will discuss how these processes worked together to form the fantastic desert landscape of the park. Tor Lacy, M.S. is a tenured instructor at Cerritos College teaching: Physical Geology, Introduction to Earth Science, Geology of the Western National Parks and Monuments, Natural History of Southern California and Field Methods of the Earth Sciences.

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