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SUMMARY:Highs and lows of the South Atlantic - Dr Lucia Perez Diaz\, Unive
 rsity of Oxford
DTSTART:20200302T180000Z
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UID:TALK135868@talks.cam.ac.uk
CONTACT:Natalie Forrest
DESCRIPTION:It is no surprise that the opening of the South Atlantic Ocean
  is one of the most extensively researched problems in geodynamics. After 
 all\, it was the similarity of the coastlines of South America and Africa 
 that inspired the basic foundations of plate tectonic theory. An accurate 
 representation of the plate motions that led to the growth of this ocean b
 asin is crucial to understanding the dynamics of its margins\, the formati
 on of petroleum systems and the driving mechanisms behind present and past
  water circulation patterns. However\, for a fuller understanding\, the ev
 olution of depth through time also needs to be considered. \n\nChanges in 
 continental configurations exert a critical control over the dynamics of o
 ceans and\, with them\, global climate\, nutrient distribution and subsequ
 ent floral and faunal evolution. We have\, for the first time\, produced a
  series of well-constrained paleobathymetric reconstructions for the South
  Atlantic\, detailing the opening and closure of oceanic gateways and the 
 evolution of submarine topography. These reconstructions illustrate the ce
 ntral role that this ocean has played in the formation of Antarctic ice sh
 eets and the development of deep bottom water currents leading to the esta
 blishment of global ocean circulation as we know it today. \n\nRead more a
 bout this work:\n\nPérez-Díaz\, L. and Eagles\, G.\, (2017). South Atlan
 tic paleobathymetry since early Cretaceous. Scientific Reports\, 7\, 11819
 \, https://tinyurl.com/south-atlantic \n
LOCATION: Harker 1\, Department of Earth Sciences\, Downing Street
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