'Axial plane' diaporamas de présentation

Chapter 4 Geological Structure ??? ????

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Folds, faults and deformation

Folds, faults and deformation. Deformation of Rocks. Folds and faults are geologic structures caused by deformation. Structural geology is the study of the deformation of rocks and its effects. Fig. 11.1. Orientation of Deformed Rocks.

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Folds

Folds. Field and Lab Measurements. Data Acquired for Folds. Detailed structural analysis requires sampling of: Bedding in sedimentary rock Compositional layering in gneiss Planar fabric (cleavage) with lineation on them Fold elements (attitude of axial plane and hingeline) Shear zones

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Crustal Deformation

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Kaplan turbine

Kaplan turbine. Jebba, Nigeria. D 0 = 8,5 m D e = 7,1 m D i = 3,1 m B 0 = 2,8 m. *Q = 376 m 3 /s *H = 27,6 m *P = 96 MW. Machicura, CHILE. *Q = 144 m 3 /s *H = 36,7 m *P = 48 MW. D 0 = 7,2 m D e = 4,2 m D i = 1,9 m B 0 = 1,3 m. Outlet draft tube. Outlet runner. Inlet

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structural geology & mountain building

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structural geology & mountain building

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Description of folds

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Mountain Building

Mountain Building. Folding and Faulting. Stress in the Crust. Stress from plate motions causes crustal rocks to deform Rocks near the surface are cool and rigid . They will tend to fault ( break )

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