Geological structures exposed - for iPod/iPhone

Geological structures exposed - for iPod/iPhone

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Understanding mountain building involves unraveling how and why rocks deform. Geologists Nigel Harris and John Whalley tour the Scottish segment of the Caledonian orogenic Belt to untangle the kinematics and the chronology of deformation. This material forms part of The Open University course S339,…

The Open University


    • Apr 12, 2010 LATEST EPISODE
    • infrequent NEW EPISODES
    • 3m AVG DURATION
    • 24 EPISODES


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    Latest episodes from Geological structures exposed - for iPod/iPhone

    Geological structures exposed

    Play Episode Listen Later Apr 12, 2010 0:36


    A short introduction to this album.

    Transcript -- Geological structures exposed

    Play Episode Listen Later Apr 12, 2010


    Transcript -- A short introduction to this album.

    Overview of the Orogenic Belt

    Play Episode Listen Later Jun 22, 2009 4:55


    The three main components of the Orogenic Belt; Lewisian gneisses, Torridonian sandstone and sediments laid down from Cambrian times.

    cambrian carbonate orogenic belt red sandstone deposites
    Transcript -- Overview of the Orogenic Belt

    Play Episode Listen Later Jun 22, 2009


    Transcript -- The three main components of the Orogenic Belt; Lewisian gneisses, Torridonian sandstone and sediments laid down from Cambrian times.

    cambrian carbonate orogenic belt red sandstone deposites
    A history of movement

    Play Episode Listen Later Jun 22, 2009 4:21


    Evidence that the Moine Thrust is the result of frictional sliding.

    Transcript -- A history of movement

    Play Episode Listen Later Jun 22, 2009


    Transcript -- Evidence that the Moine Thrust is the result of frictional sliding.

    Ductility of the Structures

    Play Episode Listen Later Jun 22, 2009 1:18


    The ductility of structures of rocks from the Dalradian supergroup.

    Transcript -- Ductility of the Structures

    Play Episode Listen Later Jun 22, 2009


    Transcript -- The ductility of structures of rocks from the Dalradian supergroup.

    Kinematic indicators

    Play Episode Listen Later Jun 22, 2009 4:54


    Evidence of indicators which suggest the direction of movement within slices of rock.

    Transcript -- Kinematic indicators

    Play Episode Listen Later Jun 22, 2009


    Transcript -- Evidence of indicators which suggest the direction of movement within slices of rock.

    Using dikes as kinematic indicators

    Play Episode Listen Later Jun 22, 2009 7:16


    A dike that is deflected 45 degrees when entering a sheer zone provides a valuable kinematic indicator.

    Transcript -- Using dikes as kinematic indicators

    Play Episode Listen Later Jun 22, 2009


    Transcript -- A dike that is deflected 45 degrees when entering a sheer zone provides a valuable kinematic indicator.

    Shear Zone movement

    Play Episode Listen Later Jun 22, 2009 2:55


    An assymetric porphyroblast reveals a sense of movement within Myelenite gneissic banding.

    Transcript -- Shear Zone movement

    Play Episode Listen Later Jun 22, 2009


    Transcript -- An assymetric porphyroblast reveals a sense of movement within Myelenite gneissic banding.

    Locating synforms

    Play Episode Listen Later Jun 22, 2009 4:07


    Asymmetric fold pairs and ductile structures in the inner zone at Scotlands Kilmore Bay.

    Transcript -- Locating synforms

    Play Episode Listen Later Jun 22, 2009


    Transcript -- Asymmetric fold pairs and ductile structures in the inner zone at Scotlands Kilmore Bay.

    Cleavage vergence test

    Play Episode Listen Later Jun 22, 2009 3:05


    Evidence for crossing the axis of the synfold.

    Transcript -- Cleavage vergence test

    Play Episode Listen Later Jun 22, 2009


    Transcript -- Evidence for crossing the axis of the synfold.

    Structural chronology

    Play Episode Listen Later Jun 22, 2009 4:28


    A closer look at folds and deformation.

    Transcript -- Structural chronology

    Play Episode Listen Later Jun 22, 2009


    Transcript -- A closer look at folds and deformation.

    Deformation history

    Play Episode Listen Later Jun 22, 2009 3:06


    Geologist John Whalley explains how in structural chronology downwards facing folds will cause the rock structure to start younging.

    Transcript -- Deformation history

    Play Episode Listen Later Jun 22, 2009


    Transcript -- Geologist John Whalley explains how in structural chronology downwards facing folds will cause the rock structure to start younging.

    460 million years ago

    Play Episode Listen Later Jun 22, 2009 3:19


    The evidence for an Arc-continent collision around 460 million years ago in the Scottish Highlands.

    Transcript -- 460 million years ago

    Play Episode Listen Later Jun 22, 2009


    Transcript -- The evidence for an Arc-continent collision around 460 million years ago in the Scottish Highlands.

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