noaa-ocean-14191
Equatorial Pacific DSDP574 Miocene Biogenic Sediment Data
Piela, C.; Lyle, M.; Marcantonio, F.; Baldauf, J.; Olivarez Lyle, A.
Equatorial Pacific DSDP574 Miocene Biogenic Sediment Data
2013-04-10
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/14191
Investigator
C.
Piela
Investigator
M.
Lyle
Investigator
F.
Marcantonio
Investigator
J.
Baldauf
Investigator
A.
Olivarez Lyle
earth science
paleoclimate
paleoceanography
age,null,null,million years ago,null,paleoceanography,averaged,null,N,null
earth science
paleoclimate
paleoceanography
latitude,null,null,degree north,null,paleoceanography,null,null,N,paleolatitude
earth science
paleoclimate
paleoceanography
density,dry sediment,null,gram per cubic centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
accumulation rate,sediment,null,gram per square centimeter per kiloyear,null,paleoceanography,null,null,N,bulk mass accumulation
earth science
paleoclimate
paleoceanography
calcium carbonate,sediment,null,gram per square centimeter per kiloyear,null,paleoceanography,null,null,N,calcium carbonate mass accumulation
earth science
paleoclimate
paleoceanography
age at sample start,null,null,million years ago,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
barium,sediment,null,milligram per square centimeter per kiloyear,null,paleoceanography,null,null,N,barium mass accumulation
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,DSDP leg
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,DSDP site
earth science
paleoclimate
paleoceanography
depth,null,null,meter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
longitude,null,null,degree west,null,paleoceanography,null,null,N,paleolongitude
earth science
paleoclimate
paleoceanography
density,wet sediment,null,gram per cubic centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
barium,sediment,null,microgram per gram,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
organic carbon,sediment,null,weight percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
age at sample end,null,null,million years ago,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
sample identification,null,null,null,null,paleoceanography,null,null,C,null
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,Interval Top cm
earth science
paleoclimate
paleoceanography
organic carbon,sediment,null,gram per square centimeter per kiloyear,null,paleoceanography,null,null,N,organic carbon mass accumulation
earth science
paleoclimate
paleoceanography
biogenic silica,sediment,null,gram per square centimeter per kiloyear,null,paleoceanography,null,null,N,Biogenic silica mass accumulation rate
earth science
paleoclimate
paleoceanography
barium,sediment,null,milligram per square centimeter per kiloyear,null,paleoceanography,null,null,N,Barium mass accumulation rate
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,DSDP hole
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,DSDP core
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,DSDP section
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,Interval Bottom cm
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,biogenic silica notes
earth science
paleoclimate
paleoceanography
carbon,sediment,null,percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
calcium carbonate,sediment,null,weight percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
sedimentation rate,null,null,centimeter per kiloyear,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
thorium,sediment,null,parts per billion,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
dust,sediment,null,weight percent,null,paleoceanography,null,null,N,(Th/10.7)
earth science
paleoclimate
paleoceanography
uranium,sediment,null,nanogram per square centimeter per kiloyear,null,paleoceanography,null,null,N,Uranium mass accumulation rate
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,Sum of major sediment components
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,Site 574 Sample Interval Hole-Core-Section-depth [cm]
earth science
paleoclimate
paleoceanography
uranium,sediment,null,parts per billion,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
thorium,sediment,null,nanogram per square centimeter per kiloyear,null,paleoceanography,null,null,N,Thorium mass accumulation rate
earth science
paleoclimate
paleocean
biomarkers
geoscientificInformation
biogeochemical cycles
24000000 cal yr BP
12500000 cal yr BP
Complete
4.22
4.22
-133.33
-133.33
-4561
-4561
Ocean
Pacific Ocean
North Pacific Ocean
DSDP 574>LATITUDE 4.22>LONGITUDE -133.33
None
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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
Piela, C., M. Lyle, F. Marcantonio, J. Baldauf, and A. Olivarez Lyle. 2012.
Biogenic sedimentation in the equatorial Pacific: Carbon cycling and
paleoproduction, 12-24 Ma.
Paleoceanography, 27, PA2204, doi:10.1029/2011PA002236
The equatorial Pacific is an important part of the global carbon cycle
and has been affected by climate change through the Cenozoic (65 Ma
to present). We present a Miocene (12-24 Ma) biogenic sediment record
from Deep Sea Drilling Project (DSDP) Site 574 and show that a CaCO3
minimum at 17 Ma was caused by elevated CaCO3 dissolution. When Pacific
Plate motion carried Site 574 under the equator at about 16.2 Ma,
there is a minor increase in biogenic deposition associated with passing
under the equatorial upwelling zone. The burial rates of the primary
productivity proxies biogenic silica (bio-SiO2) and biogenic barium (bio-Ba)
increase, but biogenic CaCO3 decreases. The carbonate minimum is at ~17 Ma
coincident with the beginning of the Miocene climate optimum; the transient
lasts from 18 to 15 Ma. Bio-SiO2 and bio-Ba are positively correlated
and increase as the equator was approached. Corg is poorly preserved,
and is strongly affected by changing carbonate burial. Terrestrial 232Th
deposition, a proxy for aeolian dust, increases only after the Site 574
equator crossing. Since surface production of bio-SiO2, bio-Ba, and CaCO3
correlate in the modern equatorial Pacific, the decreased CaCO3 burial rate
during the Site 574 equator crossing is driven by elevated CaCO3 dissolution,
representing elevated ocean carbon storage and elevated atmospheric CO2.
The length of the 17 Ma CaCO3 dissolution transient requires interaction
with a 'slow' part of the carbon cycle, perhaps elevated mantle degassing
associated with the early stages of Columbia River Basalt emplacement.
STUDY NOTES: Equatorial Pacific Deep Sea Drilling Project (DSDP) Site 574 Miocene
biogenic sediment data. Data include CaCO3, C-org, bio-Sio2, Ba, U,
and Th data from Piela et al 2012. CaCO3 and C-org were measured
with coulometer, bio-SiO2 by digestion and molybdate blue method,
Ba-U-Th by ICP-MS on a total sediment digestion.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/piela2012/piela2012.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/piela2012/piela2012mar.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/piela2012/piela2012.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/piela2012/piela2012biogenic.txt
USA/NOAA
DIF
Version 9.8.4
2019-01-30
2019-01-30