nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Impact of Antarctic Circumpolar Current development on late Paleogene ocean structure
Katz, M.E.; Cramer, B.S.; Toggweiler, J.R.; Esmay, G.; Liu, C.; Miller, K.G.; Rosenthal, Y.; Wade, B.S.; Wright, J.D. (2011). Impact of Antarctic Circumpolar Current development on late Paleogene ocean structure. Science (Wash.) 332(6033): 1076-1079.
In: Science (Washington). American Association for the Advancement of Science: New York, N.Y. ISSN 0036-8075; e-ISSN 1095-9203, meer
Peer reviewed article  

Beschikbaar in  Auteurs 


Auteurs  Top 
  • Katz, M.E.
  • Cramer, B.S.
  • Toggweiler, J.R.
  • Esmay, G.
  • Liu, C.
  • Miller, K.G.
  • Rosenthal, Y., redacteur
  • Wade, B.S.
  • Wright, J.D.

    Global cooling and the development of continental-scale Antarctic glaciation occurred in the late middle Eocene to early Oligocene (similar to 38 to 28 million years ago), accompanied by deep-ocean reorganization attributed to gradual Antarctic Circumpolar Current (ACC) development. Our benthic foraminiferal stable isotope comparisons show that a large delta(13)C offset developed between mid-depth (similar to 600 meters) and deep (>1000 meters) western North Atlantic waters in the early Oligocene, indicating the development of intermediate-depth delta(13)C and O(2) minima closely linked in the modern ocean to northward incursion of Antarctic Intermediate Water. At the same time, the ocean's coldest waters became restricted to south of the ACC, probably forming a bottom-ocean layer, as in the modern ocean. We show that the modern four-layer ocean structure (surface, intermediate, deep, and bottom waters) developed during the early Oligocene as a consequence of the ACC.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ, voor meer informatie contacteer .