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North Atlantic geopotential stress field since breakup North Atlantic geopotential stress field since breakup

North Atlantic geopotential stress field since breakup - PowerPoint Presentation

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Uploaded On 2020-08-07

North Atlantic geopotential stress field since breakup - PPT Presentation

Christian Schiffer North Atlantic 2017 Durham Geopotential stress from lateral pressure gradients in the lithosphere North Atlantic geopotential stress field since breakup Christian Schiffer North Atlantic 2017 Durham ID: 801707

stress depth econstructions field depth stress field econstructions gplates lithospheric atlantic geopotential pressure lithosphere sedimentary gpe oundary asthenosphere thickness

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Presentation Transcript

Slide1

North Atlantic geopotential stress field since breakupChristian SchifferNorth Atlantic 2017, Durham

Geopotential stress from lateral pressure gradients in the lithosphere

Slide2

North Atlantic geopotential stress field since breakupChristian SchifferNorth Atlantic 2017, Durham

Lithospheric

Density structure

Slide3

North Atlantic geopotential stress field since breakupChristian SchifferNorth Atlantic 2017, Durham

Radial tractions

->

dynamic

topography

Slide4

Lithospheric density structure

Depth to Lithosphere-Asthenosphere

b

oundary

Depth to

Moho

Sedimentary

thickness

Sub-

lithospheric

pressure

anomaly

Slide5

R

econstructions

using

Gplates

2

0 Ma

Depth to Lithosphere-Asthenosphere

b

oundary

Depth to

Moho

Sedimentary

thickness

Sub-

lithospheric

pressure

anomaly

Slide6

R

econstructions

using

Gplates

4

0 Ma

Depth to Lithosphere-Asthenosphere

b

oundary

Depth to

Moho

Sedimentary

thickness

Sub-

lithospheric

pressure

anomaly

Slide7

R

econstructions

using

Gplates

6

0 Ma

Depth to Lithosphere-Asthenosphere

b

oundary

Depth to

Moho

Sedimentary

thickness

Sub-

lithospheric

pressure

anomaly

Slide8

R

econstructions

using

Gplates

8

0 Ma

Depth to Lithosphere-Asthenosphere

b

oundary

Depth to

Moho

Sedimentary

thickness

Sub-

lithospheric

pressure

anomaly

Slide9

Thermal structure

Slide10

Density structure

Slide11

Geopotential energy

Slide12

Geopotential stress field

Slide13

R

econstructions

using

Gplates

80 Ma

Geoid/GPE

Stress

field

Slide14

R

econstructions

using

Gplates

60 Ma

Geoid/GPE

Stress

field

Slide15

R

econstructions

using

Gplates

40 Ma

Geoid/GPE

Stress

field

Slide16

R

econstructions

using

Gplates

20 Ma

Geoid/GPE

Stress

field

Slide17

R

econstructions

using

Gplates

0 Ma

Geoid/GPE

Stress field

Slide18

80 Ma

Slide19

60 Ma

Slide20

40 Ma

Slide21

20 Ma

Slide22

0 Ma

Slide23

60 Ma

Slide24

40 Ma