1 / 5

Mid Ocean Ridges Thermal Evolution Joel Pierson, Glynis Jehle

Mid Ocean Ridges Thermal Evolution Joel Pierson, Glynis Jehle. Models for Ocean Plate Thermal Evolution . Half-Space Model. Plate Model. An attempt to better represent older sea floor Subsidence and heat flow described using cooling conductive plate that has a constant temperature at the base

lara
Download Presentation

Mid Ocean Ridges Thermal Evolution Joel Pierson, Glynis Jehle

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mid Ocean RidgesThermal EvolutionJoel Pierson, Glynis Jehle

  2. Models for Ocean Plate Thermal Evolution Half-Space Model Plate Model An attempt to better represent older sea floor Subsidence and heat flow described using cooling conductive plate that has a constant temperature at the base Parameters for model: Lithosphere thickness and temperature at base (135 km thickness and 1330oC) • Cooling from the top by conduction • Isostatic subsidence is proportional to the square root of the sea floor age • Plot of depth versus age1/2 is a straight line • Half-space model significantly overestimates depth for ages >90 Ma

  3. The relationship between depth, age and gravity in the oceans Geophysical Journal InternationalVolume 166, Issue 2, pages 553-573, 5 JUL 2006 DOI: 10.1111/j.1365-246X.2006.03015.xhttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-246X.2006.03015.x/full#f1

  4. Elevation/bathymetry [Davis and Chapman, 2011]

  5. Heat Flow [Davis and Chapman, 2011]

More Related