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Geological structures exposed - for iPad/Mac/PC
The Open University
24 episodes
7 months ago
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, Understanding the continents.
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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, Understanding the continents.
Show more...
Courses
Education
Episodes (12/24)
Geological structures exposed - for iPad/Mac/PC
Geological structures exposed
A short introduction to this album.
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15 years ago
36 seconds

Geological structures exposed - for iPad/Mac/PC
Overview of the Orogenic Belt
The three main components of the Orogenic Belt; Lewisian gneisses, Torridonian sandstone and sediments laid down from Cambrian times.
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16 years ago
4 minutes 55 seconds

Geological structures exposed - for iPad/Mac/PC
A history of movement
Evidence that the Moine Thrust is the result of frictional sliding.
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16 years ago
4 minutes 21 seconds

Geological structures exposed - for iPad/Mac/PC
Ductility of the Structures
The ductility of structures of rocks from the Dalradian supergroup.
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16 years ago
1 minute 18 seconds

Geological structures exposed - for iPad/Mac/PC
Kinematic indicators
Evidence of indicators which suggest the direction of movement within slices of rock.
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16 years ago
4 minutes 54 seconds

Geological structures exposed - for iPad/Mac/PC
Using dikes as kinematic indicators
A dike that is deflected 45 degrees when entering a sheer zone provides a valuable kinematic indicator.
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16 years ago
7 minutes 16 seconds

Geological structures exposed - for iPad/Mac/PC
Shear Zone movement
An assymetric porphyroblast reveals a sense of movement within Myelenite gneissic banding.
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16 years ago
2 minutes 55 seconds

Geological structures exposed - for iPad/Mac/PC
Locating synforms
Asymmetric fold pairs and ductile structures in the inner zone at Scotlands Kilmore Bay.
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16 years ago
4 minutes 7 seconds

Geological structures exposed - for iPad/Mac/PC
Cleavage vergence test
Evidence for crossing the axis of the synfold.
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16 years ago
3 minutes 5 seconds

Geological structures exposed - for iPad/Mac/PC
Structural chronology
A closer look at folds and deformation.
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16 years ago
4 minutes 28 seconds

Geological structures exposed - for iPad/Mac/PC
Deformation history
Geologist John Whalley explains how in structural chronology downwards facing folds will cause the rock structure to start younging.
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16 years ago
3 minutes 6 seconds

Geological structures exposed - for iPad/Mac/PC
460 million years ago
The evidence for an Arc-continent collision around 460 million years ago in the Scottish Highlands.
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16 years ago
3 minutes 19 seconds

Geological structures exposed - for iPad/Mac/PC
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, Understanding the continents.