noaa-ocean-2627
Southern Ocean Middle Eocene to Early Oligocene Paleoceanographic Data
Anderson, L.D.; Delaney, M.L.
Southern Ocean Middle Eocene to Early Oligocene Paleoceanographic Data
2005-01-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/2627
Investigator
L.D.
Anderson
Investigator
M.L.
Delaney
earth science
paleoclimate
paleoceanography
barium excess,sediment,null,micromole per gram,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
aluminum/titanium,sediment,null,dimensionless,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
manganese,sediment,null,micromole per gram,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
biogenic silica,sediment,null,millimole per square centimeter per kiloyear,null,paleoceanography,null,null,N,mass accumulation rate
earth science
paleoclimate
paleoceanography
phosphorus,sediment,null,micromole per gram,null,paleoceanography,null,null,N,reactive
earth science
paleoclimate
paleoceanography
calcium,sediment,null,millimole per gram,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
silicon dioxide,sediment,null,weight percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
mineral matter,sediment,null,weight percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
age,null,null,radiocarbon year before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
barium,sediment,null,micromole per gram,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
barium excess,sediment,null,micromole per square centimeter per kiloyear,null,paleoceanography,null,null,N,accum. rate
earth science
paleoclimate
paleoceanography
phosphorus,sediment,null,micromole per gram,null,paleoceanography,null,null,N,detrital phosphorus
earth science
paleoclimate
paleoceanography
phosphorus,sediment,null,unspecified unit,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
calcium carbonate,sediment,null,millimole per square centimeter per kiloyear,null,paleoceanography,null,null,N,accum. rate
earth science
paleoclimate
paleoceanography
calcium carbonate,sediment,null,weight percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
uranium,sediment,null,nanomole per gram,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
aluminum,sediment,null,parts per million,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
titanium,sediment,null,micromole per gram,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
phosphorus,sediment,null,micromole per gram,null,paleoceanography,null,null,N,total digestion
earth science
paleoclimate
paleocean
geochemistry
earth science
paleoclimate
paleocean
lithology
earth science
paleoclimate
paleocean
physical properties
earth science
paleoclimate
paleocean
age control
geoscientificInformation
40589788 14C yr BP
33065034 14C yr BP
40589788 cal yr BP
33065034 cal yr BP
Complete
-42.908333
-42.908333
8.9
8.9
-3702
-3702
Ocean
Atlantic Ocean
South Atlantic Ocean
ODP 1090>LATITUDE -42.908333>LONGITUDE 8.9
None
Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Anderson, L.D. and M.L. Delaney. 2005. Middle Eocene to early Oligocene paleoceanography from Agulhas Ridge, Southern Ocean (Ocean Drilling Program Leg 177, Site 1090). Paleoceanography 20, PA1013. doi:10.1029/2004PA001043
The Agulhas Ridge, off the tip of Africa between the Atlantic and Indian Oceans, is ideally located to capture the evolution of Paleogene-early Neogene circulation patterns associated with global cooling. Multiproxy records of productivity (biogenic barium (Baex), opal, CaCO3 mass accumulation rates (MARs)), nutrient and organic carbon burial (reactive phosphorus (Pr) MARs), and redox state of deep waters (U enrichment) from Ocean Drilling Program (ODP) Site 1090 reflect hydrographic shifts in this region between the middle Eocene and early Oligocene (?3933 Ma). Several peaks in increased export productivity and burial of organic matter occurred within the late Eocene (?36.5, ?34, and ?33.7 Ma), which along with surface hydrologic conditions favoring opaline organisms over calcareous organisms could have aided in the draw down of pCO2 to a threshold level that facilitated large ice sheet development on Antarctica in the earliest Oligocene. Our multiproxy approach illustrates the importance of vertical as well as spatial hydrographic reorganization in amplifying or driving climatic cooling of the middle Eocene to early Oligocene by facilitating increases in the relative or absolute burial of organic carbon.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1090-tab.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/anderson2005
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11