'New crust' presentation slideshows

Volcanoes by Jim Alton Click the volcano below to go to the next slide.

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ASTR 330: The Solar System

ASTR 330: The Solar System. Homework #3 due today. Early warning grades. Mid-term #1 results delayed til Thursday. Homework #4 out today - due back 10/31/06. Feedback assessment forms. Announcements. Dr Conor Nixon Fall 2006. ASTR 330: The Solar System. Lecture 14: The Earth.

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Happy Game

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Happy Game

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Plate Tectonics: Overview

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Cuernos Del Paine, Andes Mountains Gabriel Callaghan

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The Mars Dichotomy

The Mars Dichotomy. Evidence for Plate Tectonics or Erosion?. Theories of the Dichotomy Formation. Giant Impact One major collision resurfaced the region. Multiple Impacts Several large impacts caused resurfacing. Ancient Ocean

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Plate Tectonics

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Sea-Floor Spreading

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Plate Tectonics

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Types of Plate Boundaries

Types of Plate Boundaries. Types of Plate Boundaries. Scientists identify the boundaries between two plates by the plate movement. There are three types of plate boundaries: Divergent Convergent Transform . Divergent Boundaries.

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Volcanoes

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Plate Tectonics

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Plate Tectonics

Plate Tectonics. A lesson designed for 5th graders By: Meri Koski. The theory of plate tectonics is only about 30 years old. It states that the outer layer of Earth (the lithosphere) is broken into 7 plates that move in all different directions and at varying speeds (2-10cm per year).

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Plate Tectonics

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Continental Growth

Continental Growth. **Remember** our evidence for continental drift : fossils, glacial deposits, landforms, ages of rocks, puzzle fit of continents. *These notes go on p. 17 of your INB!*. scientists use evidence found in rocks to reconstruct the past: (1) age of rocks, (2) fossils ,

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Sea Floor Spreading

Sea Floor Spreading. Divergent Plate Boundaries. What is sea floor spreading?. Sea Floor Spreading is the formation of new crust from magma coming to the surface at a divergent plate boundary . As the plates continues to move apart the new crust is separated equally on both sides .

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Convection Currents and Sea-Floor Spreading

Convection Currents and Sea-Floor Spreading. Convection Currents. Occur in the asthenosphere Heat from the core (both inner and outer) drives the convection currents Hotter material rises to be just below the lithosphere because it is less dense

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