Evidence for Oligocene–Middle Miocene abyssal circulation changes in the western North Atlantic

  title={Evidence for Oligocene–Middle Miocene abyssal circulation changes in the western North Atlantic},
  author={Kenneth G. Miller and Richard G. Fairbanks},
Previous studies of benthic foraminiferal isotopic composition have demonstrated that a latest Eocene–earliest Oligocene benthic foraminiferal δ18O increase occurred in the Pacific, Southern and Atlantic Oceans1–9. A Middle Miocene δ18O increase has been noted in the Pacific, Southern and South Atlantic Oceans1–3,7,10,11 and tentatively identified in the North Atlantic12,13. Due to the incomplete nature of the North Atlantic stratigraphical record14,15, however, the Oligocene to Middle Miocene… 
Benthic Foraminiferal Carbon Isotopic Records and the Development of Abyssal Circulation in the Eastern North Atlantic
The North Atlantic at present is ventilated by overflow of the Denmark Strait, Iceland-Faeroe Ridge, Faeroe Bank Channel, and Wyville-Thompson Ridge. The evolution of Cenozoic abyssal circulation of
Late Eocene to Oligocene benthic foraminiferal isotopic record, Site 574, equatorial Pacific.
Oxygen and carbon isotopic data from mixed species of the benthic foraminifer Cibicidoides at Site 574 in the equatorial Pacific are compared with benthic foraminiferal isotopic data from equatorial
Early to Middle Miocene Paleoceanography in the Southern High Latitudes off Tasmania
Paleoclimate proxy records from the southern high latitudes can provide key constraints on the possible role of ocean circulation as a cause of the middle Miocene global cooling event and the major
Miocene deepwater oceanography
A global synthesis of Miocene benthic foraminiferal carbon and oxygen isotopic and faunal abundance data indicates that Miocene thermohaline circulation evolved through three regimes corresponding
Paleogene and Early Neogene Oceanography of the Southern Indian Ocean: Leg 119 Foraminifer Stable Isotope Results
Oxygen and carbon isotopic records of monogeneric and monospecific benthic and planktonic foraminifer samples from Sites 744 and 738 drilled on the southern end of the Kerguelen Plateau during ODP
Abyssal circulation and benthic foraminiferal changes near the Paleocene/Eocene boundary
A major change in Cenozoic deep-sea benthic foraminifera occurred in the Atlantic, Indian, and Pacific oceans near the Paleocene/Eocene boundary. Benthic foraminiferal abundance changes began at
Stable isotopes in late middle Eocene to Oligocene foraminifera
Oxygen and carbon isotope ratios in Eocene and Oligocene planktonic and benthic foraminifera have been investigated from Atlantic, Indian, and Pacific Ocean locations. The major changes in
Pleistocene δ13C variability of North Atlantic intermediate water
Variations in the stable isotopic composition of benthic foraminifera from Deep-Sea Drilling Project (DSDP) site 502B in the Caribbean Sea are used to reconstruct Atlantic intermediate water
  • M. Mutti
  • Geography, Environmental Science
  • 2000
Stable isotope records spanning from the latest Oligocene through the middle Miocene have been produced at Sites 999 and 1000 to address major changes in climate associated with the transition from


Palaeoceanographic change in the Pacific at the Eocene–Oligocene boundary
  • L. Keigwin
  • Environmental Science, Geography
  • 1980
Oxygen isotopic studies both of benthic formanifera1–5 and shallow-marine carbonates6–8 have provided a useful monitor of marine palaeotemperatures. The Deep Sea Drilling Project (DSDP) has provided
North Atlantic Deep Water formed by the later middle Miocene
There is evidence that in Mesozoic and Palaeogene times both north and south subpolar areas had a mild climate1,2. Unlike the present day climatic symmetry, with warm equatorial regions and
Miocene benthic foraminiferal isotope records: A synthesis
Eocene to Oligocene benthic foraminiferal isotopic record in the Bay of Biscay
We present here oxygen and carbon isotopic records of Eocene to Oligocene benthic f oraminif era from two Bay of Biscay Deep Sea Drilling Project (DSDP) sites (119 and 401). δ18O of benthic
Miocene stable isotope record: a detailed deep pacific ocean study and its paleoclimatic implications.
Deep Sea Drilling Project site 289 in the western equatorial Pacific has yielded an extremely detailed record of the carbon and oxygen isotopic changes in the Miocene deep ocean. The isotopic record
Tertiary marine paleotemperatures
Oxygen isotopic compositions of the tests of planktonic foraminifera from several Deep Sea Drilling Project sites provide a general picture of low-latitude marine temperatures from Maastrichtian time