Ocean basins 3

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Hot spot model• Age and geometry suggest thatisland chains are created by a hotspot that remains stationaryunderneath the plate while theplate passes abovemelt region19
Page 1 and 2: 3. Ocean basinsTheir structure and
Page 3 and 4: Continental and oceanic lithosphere
Page 5 and 6: The most common plate boundaries•
Page 7 and 8: Types of plate boundaries7
Page 10 and 11: Magnetic anomaliesVolcano World web
Page 12 and 13: Plate motions from magnetic anomali
Page 14 and 15: Geometry of motion on a sphere; At
Page 16 and 17: Motions and earthquakesat plate bou
Page 20 and 21: Age along seamount chains• There
Page 22 and 23: Direct measurementsNASA Goddard Spa
Page 24 and 25: Relative plate motionsPress and Sie
Page 28 and 29: For next time• Read Chapter 3 in
Page 30 and 31: Changes in plate motions• New rif
Page 32 and 33: The bend in the Hawaii-Emperorseamo
Page 34 and 35: Changes in Norwegian-Greenland Seas
Page 37 and 38: 16 typesThe Solid Earth, Fowler 37
Page 40 and 41: The evolution of ocean basins40
Page 42 and 43: Atlantic Ocean• Rifting:- Central
Page 44 and 45: Indian Ocean• Abandoned ridges in
Page 46 and 47: Magnetic anomalies- Pacific OceanLa
Page 48: Magnetic anomalies- East Indian Oce
Page 51 and 52: Ancient Oceans• The Wilson Cycle
Page 53 and 54: Passive or active riftingdepends on
Page 55 and 56: Passive rifting55
Page 57 and 58: Active rifting57
Page 59 and 60: Remember• Sequences of magnetic s
Page 61 and 62: Plate Tectonics III• The birth of
Page 63 and 64: Wilson Cycle Stage A - stable conti
Page 65 and 66: Embryonic stage - East African rift
Page 67 and 68: Wilson Cycle Stage C - continentalb
Page 69 and 70:
Red Sea magnetic anomalies• Well
Page 71 and 72:
Red SeasedimentsBrines and metallic
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Ocean basins 3

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