1. GEOL 108 - Crises of a Planet Lab 7 - Coastal Studies Oct. 16 - 19, 2012 Department of Earth Sciences

2. REVIEW | 2 QUIZ 5 REVIEW 4. Do the following substances fit the definition of a mineral? If no, explain why not. Pearl, ice, silver, granite What is mineral luster? Bonus: What recent Black Keys song has a mineral in its title and what’s the chemical formula of that mineral? Gold (Au) on The Ceiling

3. http://www.flickr.com/photos/francis-foley/6250425510/sizes/l/in/photostream/ Department of Earth Sciences COASTAL STUDIES | 3 LAB 7 - Coastal Studies

4. Department of Earth Sciences COASTAL STUDIES | 4 SHORELINE EROSION Shoreline erosion depends on factors such as: −Rock type/hardness −Geometry of shoreline (e.g. lagoons are protected) −Wind direction, intensity, and currents −Vegetation cover Left: Green sand beach in Hawaii Right: South Point, just a couple km away

5. Department of Earth Sciences COASTAL STUDIES | 5 SHORELINE EROSION Wave cut notchesSea arches and stacks Above: Wave cut notches in Hawaii. Top right: sea stack formation Lower right: Holei sea arch in Volcanoes National Park. http://www.flickr.com/photos/23679420@N00/5215649472/

6. Department of Earth Sciences COASTAL STUDIES | 6 SHORELINE EROSION Erosion creates loose sediment Above: Oblique wave action moves sediment along a shoreline. When the shoreline moves inland a sandbar known as a spit is formed. Curved spits are called hooks.

7. Department of Earth Sciences COASTAL STUDIES | 7 SHORELINE DANGERS Hurricanes −Wind direction varies in different parts of the hurricane. −Storm surge more hazardous than high winds Tsunamis