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Elastic, Ductile and Brittle Material and Earth’s Layers ...gabi/sio15/pdfs/Lecture04.pdf ·...

Date post: 08-Mar-2018
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SIO15 Lecture 04: Continental Drift and Plate Tectonics Leftovers from Lecture 3 Lithospheric Plates Isostasy and the Lithosphere-Asthenosphere System Plate Tectonics - The Grand Unifying Theory Elastic, Ductile and Brittle Material and Earth’s Layers see short video 4a; short videos are test material see short video 4b The Layered Earth Mantle Convection (see Lecture 2 online notes) The 2 Driving Forces:
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Page 1: Elastic, Ductile and Brittle Material and Earth’s Layers ...gabi/sio15/pdfs/Lecture04.pdf · short videos are test material see short video 4b ... Data for the trmge from "Digital

SIO15 Lecture 04: Continental Drift and Plate TectonicsLeftovers from Lecture 3

Lithospheric Plates

Isostasy and the Lithosphere-Asthenosphere System

Plate Tectonics - The Grand Unifying Theory

Elastic, Ductile and Brittle Material and Earth’s Layers see short video 4a; short videos are test material

see short video 4b

The Layered Earth

Mantle Convection (see Lecture 2 online notes)

The 2 Driving Forces:

Page 2: Elastic, Ductile and Brittle Material and Earth’s Layers ...gabi/sio15/pdfs/Lecture04.pdf · short videos are test material see short video 4b ... Data for the trmge from "Digital

Apparent Polar Wander Curves

Seafloor ObservationsHarry Hess 1950s

Seafloor Spreading

Age of Oceanic Lithosphere

The Cooling Oceanic Lithosphere

Recording Earth’s Magnetic Fieldsee short video 4c

see short video 4c

see short video 4c

Earth’s Magnetic Field

Fig. 3.4

11º

see short video 4cContinental Drift

Alfred Wegener 1915


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