Guided Seismic Waves: Possible Mantle-Plume Diagnostics Bruce R. Julian John R. Evans U. S. Geological Survey Menlo Park, California.
Layers of the Earth. Add 2 boxes GLUE ON PAGE 117.
DO NOW Objective 09/28/12 Identify the layers of the Earth. Take out AGENDA & Weekly Worksheet Week #5 Color in foldable Do you have your Raffle tickets?
Plate boundaries II extension. Increasing heat causes uplift and fault development, which in turn creates steep- sided valleys bounded by faults. A variety.
Ecosystems: What are They and How Do They Work?. What is Ecology? It is the study of how organisms interact with each other. All living things are composed.
Geology and Nonrenewable Minerals Chapter 9. Key Concepts Major geologic processes Major geologic processes Rocks and the rock cycle Rocks and the rock.
Plate Tectonics. Plate Tectonics and the Ocean Floor Plate tectonics – Theory that the outermost portion of the Earth is composed of plates that move.
Continental Drift Hypothesis – Wegner believed continents had once been joined, and over time they drifted apart Pangaea – the first super-continent Alfred.
Geology and Nonrenewable Minerals Chapter 14. Environmental Effects of Gold Mining Gold producers South Africa Australia United States Canada Cyanide.
Geology and Nonrenewable Minerals Chapter 12. Key Concepts Major geologic processes Major geologic processes Rocks and the rock cycle Rocks and the rock.
Geological Hazards Volcanoes, Earthquakes, and Tsunami Session 3.
Rayleigh wave group velocity maps At short periods, group velocities are slow because of the thick, slow crust At long periods, group velocities are neutral.