noaa-ocean-12523
Antarctic Peninsula SHALDRIL II Eocene-Pliocene Microfossil Data
Bohaty, S.M.; Kulhanek, D.K.; Wise, S.W.; Jemison, K.; Warny, S.; Sjunneskog, C.
Antarctic Peninsula SHALDRIL II Eocene-Pliocene Microfossil Data
2012-02-15
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/12523
Investigator
S.M.
Bohaty
Investigator
D.K.
Kulhanek
Investigator
S.W.
Wise
Investigator
K.
Jemison
Investigator
S.
Warny
Investigator
C.
Sjunneskog
earth science
paleoclimate
paleocean
population abundance
geoscientificInformation
37000000 cal yr BP
3800000 cal yr BP
Complete
-63.8477
-63.2515
-54.6535
-52.3651
-531
-340
Ocean
Atlantic Ocean
South Atlantic Ocean
NBP0602A-5C>LATITUDE -63.2518>LONGITUDE -52.3651
Ocean
Atlantic Ocean
South Atlantic Ocean
NBP0602A-3C>LATITUDE -63.8477>LONGITUDE -54.6535
Ocean
Atlantic Ocean
South Atlantic Ocean
NBP0602A-5D>LATITUDE -63.2515>LONGITUDE -52.3657
Ocean
Atlantic Ocean
South Atlantic Ocean
NBP0602A-6C>LATITUDE -63.3378>LONGITUDE -52.3672
Ocean
Atlantic Ocean
South Atlantic Ocean
NBP0602A-6D>LATITUDE -63.3291>LONGITUDE -52.3673
Ocean
Atlantic Ocean
South Atlantic Ocean
NBP0602A-12A>LATITUDE -63.2726>LONGITUDE -52.825
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
Bohaty, S.M., D.K. Kulhanek, S.W. Wise, Jr., K. Jemison, S. Warny,
and C. Sjunneskog. 2011.
Age assessment of Eocene-Pliocene cores recovered during
the SHALDRIL II Expedition, Antarctic Peninsula.
In Tectonic, Climatic and Cryospheric Evolution of the Antarctic
Peninsula, edited by J.B. Anderson and J.S. Wellner, pp. 63-113,
American Geophysical Union Special Publication, Washington, D. C.
doi:10.1029/2010SP001049, ISBN: 978-0-87590-734-5
Pre-Quaternary strata were recovered from four sites on the continental
shelf of the eastern Antarctic Peninsula during the SHALDRIL II cruise,
NBP0602A (March-April 2006). Fully marine shelf sediments characterize
these short cores and contain a mixture of opaline, carbonate-walled,
and organic-walled microfossils, suitable for both biostratigraphic
and paleoenvironmental studies. Here we compile biostratigraphic
information and provide age assessments for the Eocene-Pliocene
intervals of these cores, based primarily on diatom biostratigraphy
with additional constraints from calcareous nannofossil and
dinoflagellate cyst biostratigraphy and strontium isotope dating.
The Eocene and Oligocene diatom floras are illustrated in nine figures.
A late Eocene age (~37–34 Ma) is assigned to strata recovered
in Hole 3C, and a late Oligocene age (~28.4–23.3 Ma) is determined
for strata recovered in Hole 12A. Middle Miocene (~12.8–11.7 Ma)
and early Pliocene (~5.1–4.3 Ma) ages are assigned to the sequence
recovered in holes 5C and 5D, and an early Pliocene age (~5.1–3.8 Ma)
is interpreted for cores recovered in holes 6C and 6D. These ages
provide chronostratigraphic ground truthing for the thick sequences
of Paleogene and Neogene strata present on the northwestern edge
of the James Ross Basin and on the northeastern side of the Joinville
Plateau, as interpreted from a network of seismic stratigraphic survey
lines in the drilling areas. Although representing a coarse-resolution
sampling of the complete sedimentary package, the well-constrained ages
for these cores also allow for the broad reconstruction of marine
and terrestrial paleoenvironments in the Antarctic Peninsula
for the late Eocene-to-early Pliocene time interval.
STUDY NOTES: Diatom and calcareous nannofossil data collected in sediment cores drilled
off the Antarctic Peninsula during the SHALDRIL II cruise. Sediment ages
are Eocene to Pliocene, 37 - 3 Ma. SHALDRIL II Cruise NBP0602A, March-April,
2006, RV/IB Nathaniel B. Palmer, United States Antarctic Program.
Data tables are as follows:
Table A1. Occurrence of extant diatom taxa in SHALDRIL II Hole 3C.
Table A2. Occurrence of Eocene diatom taxa in SHALDRIL II Hole 3C.
Table A3. Calcareous nannofossil distribution in SHALDRIL II Holes 3C and 12A.
Table A4. Occurrence of extant diatom taxa in SHALDRIL II Holes 5C and 5D.
Table A5. Occurrence of Miocene-Pliocene and reworked diatom taxa in SHALDRIL II Holes 5C and 5D.
Table A6. Occurrence of extant and Pliocene diatom taxa in SHALDRIL II Holes 6C and 6D.
Table A7. Occurrence of extant and Oligocene diatom taxa in SHALDRIL II Hole 12A.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/bohaty2011/bohaty2011.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/bohaty2011/bohaty2011.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11