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    Timeline of the San Andreas fault, showing the subduction of the Farallon and Pacific Plates by the North American Plate over the last 30 million years.

    4y Saved to I ♥ Rocks
    • Nancy Shogren

      San Andreas fault timeline, showing the subduction of the Farallon & Pacific Plates by the N A Plate over the last 30 Ma

    • Evan Sharp

      Timeline of the San Andreas fault, showing the subduction of the Farallon and Pacific Plates by the North American Plate over the last 30 million years.

    • Moss Hathcock

      Series of block diagrams shows how the subduction zone along the west coast of North America transformed into the San Andreas Fault from 30 million years ago to the present.

    • Phyllis Martin


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    Map of the modern San Andreas Fault

    Earth 100 Million Years From Now - a very compelling short video - Earth's landmasses were not always what they are today. Continents formed as Earth's crustal plates shifted and collided over long periods of time. This video shows how today's continents are thought to have evolved over the last 600 million years, and where they'll end up in the next 100 million years. Paleogeographic Views of Earth's History provided by Ron Blakey, Professor of Geology, Northern Arizona University.

    I need a copy of this poster. Study geology and you'll never look at a landscape in the same way again!

    Geology..Shall I not have intelligence with the earth? Am I not partly leaves and vegetable mould myself. - Henry David Thoreau (Cross-curricular relationship)

    History of the Earth

    Use this map to explore the history of life through geologic time in North America. Use the arrows or click and drag to navigate the map. Click on the map labels or on the geologic time scale for details. Or use the menus below to narrow your search.

    During the Permian era (around 300 million years ago) the strange slow dance of Earth’s tectonic plates brought together all the world’s major landmasses into the supercontinent Pangaea.

    The Earth's tectonic plates.

    good information here and on website - - - Amazing Geology: Texture of Igneous rocks

    Rifting at Thingvellir in Iceland, where the North American and Eurasian plates are moving apart.

    Amazing Geology: Faults, Earthquakes, and Landscapes

    Earth's history as a clock. (links to an awesome time traveling possibility thread at Quora)

    "CHASING ICE" going to see this tomorrow night at Eckerd College Environmental Film Festival 2/16/13:)

    Earth Evolution Poster/Graphic - Changing Planet - The Intersection of Geology and Biology - illustrates how the Earth has evolved over the past 4.6 billion years, and highlights how that evolution influences biological evolution.

    Lewisian Gneiss Rock, Isle of Lewis -the Geology of the Outer Hebrides is important - as the predominant rock type is a Lewisian Gneiss - a metamorphic rock which is astonishingly up to 3 billion years old, making it the oldest rock in Britain - two thirds the age of the Earth.

    San Andreas fault, Earth's biggest transform plate boundary.

    Geological time scale graphic showing eras, periods, and epochs.

    Shale! AHHH

    the largest known crystals on earth. Crystal Cave of the Giants, Chihuahua, Mexico

    Conjugate normal faults in Death Valley