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the Magellan Seamount Trail

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the Magellan Seamount Trail – PowerPoint PPT presentation

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Title: the Magellan Seamount Trail


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Perfit et al. (1994)
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East Pacific Rise Fast ( 18 cm/yr )
Mid-Atlantic Ridge Slow ( 3 cm/yr )
Southwest Indian Ridge Super Slow ( lt 1 cm/yr )
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Segmentation?
Distributed and 2D/Sheet-like Upwelling
Focused and 3D Upwelling
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Gravity
Ocean Floor Depth
Cochran et al. (1997)
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Slow 5-15 mm/yr
Half Spreading Rates
Intermediate 35 mm/yr
Fast 60-80 mm/yr
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Axial Ridge
First Order Transform Fault
Axial Ridge
McDonald and Fox (1990)
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McDonald and Fox (1990)
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Magnetic Field
Bathymetry Data
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Debbie Smith (WHOI)
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Tucholke and Lin (1994)
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Galapagos
Samoa Hotspot
Easter
Wessel and Kroenke (2007)
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Compression
Extension
Micro Plate
Leaky Transform
Wessel and Kroenke (2007)
16
Left Stepping
Right Stepping
Left Stepping
Left Stepping
Micro Plate
Wessel and Kroenke (2007)
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Right Stepping
Right Stepping
Right Stepping
Micro Plate
Micro Plate
Right Stepping
Left Stepping
Wessel and Kroenke (2007)
18
Right Stepping
Leaky Transform
Right Stepping
Wessel and Kroenke (2007)
19
Right Stepping
Left Stepping
Differential Motion Vector
Wessel and Kroenke (2007)
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