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Projects > S - U > SCOTIA

Preferred term

SCOTIA  

Definition

  • Using existing marine sediment cores supplemented with existing and new outcrop rock samples, we are collecting and integrating ice-volume and marine paleothermometry proxy records with sediment provenance and water-mass provenance data, all collected from common samples of Cretaceous through Miocene marine sediments of the Antarctic Peninsula the Scotia & Weddell Seas and the Patagonia orocline. We are also integrating these multi-component data with thermochronometry of the Antarctic Peninsula and Patagonia orocline, which will allow us to constrain the spatio-temporal distribution of orogenic and ocean circulation proxies that record opening of Drake Passage. This integrated approach is designed to: -determine the history of sedimentary connections and separations between crustal fragments in the Scotia Sea and adjacent continents -improve reconstruction of orogenic kinematics in the Patagonian orocline and Antarctic Peninsula that enabled Drake Passage opening and interpreted subsequent Antarctic environmental change -constrain the pattern and timing of intrusion of Pacific seawater through the Scotia Sea and into the Atlantic realm as required for set-up of the ACC -compare the temporal and spatial relationships between the data collected in (1) – (3) with local and global proxies for Cenozoic ice-volume and deep water temperature changes that appear to have driven middle-Cenozoic Antarctic and global environmental changes. [Summary provided by http://web2.geol.sc.edu/barbeau/ipy/index.asp ] (en)

Broader concept

Change note

  • 2013-01-22 16:41:26.0 [aaleman] Insert Concept add broader relation (SCOTIA [9bc49ad8-1954-4516-869a-f7521a812b10,82085] - S - U [4eb1894b-35b4-406b-8864-944a42bc7702,77543]);
  • 2013-06-23 23:03:23.0 [sgrebas] definition added insert Definition (id: null text: Using existing marine sediment cores supplemented with existing and new outcrop rock samples, we are collecting and integrating ice-volume and marine paleothermometry proxy records with sediment provenance and water-mass provenance data, all collected from common samples of Cretaceous through Miocene marine sediments of the Antarctic Peninsula the Scotia & Weddell Seas and the Patagonia orocline. We are also integrating these multi-component data with thermochronometry of the Antarctic Peninsula and Patagonia orocline, which will allow us to constrain the spatio-temporal distribution of orogenic and ocean circulation proxies that record opening of Drake Passage. This integrated approach is designed to: -determine the history of sedimentary connections and separations between crustal fragments in the Scotia Sea and adjacent continents -improve reconstruction of orogenic kinematics in the Patagonian orocline and Antarctic Peninsula that enabled Drake Passage opening and interpreted subsequent Antarctic environmental change -constrain the pattern and timing of intrusion of Pacific seawater through the Scotia Sea and into the Atlantic realm as required for set-up of the ACC -compare the temporal and spatial relationships between the data collected in (1) – (3) with local and global proxies for Cenozoic ice-volume and deep water temperature changes that appear to have driven middle-Cenozoic Antarctic and global environmental changes. [Summary provided by http://web2.geol.sc.edu/barbeau/ipy/index.asp] language code: en);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/9bc49ad8-1954-4516-869a-f7521a812b10

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