Stable isotope ratios of foraminifera from DSDP Hole 90-588A (Table 2)
High-resolution stable isotopic records are presented for the epi-benthic foraminifer Cibicidoides, the inferred shallow-dwelling planktonic Globigerinoides quadrilobatus, and the inferred deep-dwelling planktonic Globoquadrina dehiscens from the middle Miocene (~16-12 Ma) of Deep Sea Drilling Proje...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.52716 2023-05-15T14:04:42+02:00 Stable isotope ratios of foraminifera from DSDP Hole 90-588A (Table 2) Flower, Benjamin P Kennett, James P LATITUDE: -26.111700 * LONGITUDE: 161.226700 * DATE/TIME START: 1982-12-06T00:00:00 * DATE/TIME END: 1982-12-06T00:00:00 * MINIMUM DEPTH, sediment/rock: 260.63 m * MAXIMUM DEPTH, sediment/rock: 315.50 m 1993-12-03 text/tab-separated-values, 3494 data points https://doi.pangaea.de/10.1594/PANGAEA.52716 https://doi.org/10.1594/PANGAEA.52716 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.52716 https://doi.org/10.1594/PANGAEA.52716 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Flower, Benjamin P; Kennett, James P (1993): Middle Miocene ocean-climate transition: high-resolution oxygen and carbon isotopic records from Deep Sea Drilling Project Site 588A, southwest Pacific. Paleoceanography, 8(6), 811-843, https://doi.org/10.1029/93PA02196 90-588A AGE Cibicidoides coryelli δ13C δ18O Cibicidoides mundulus Cibicidoides wuellerstorfi Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Globigerinoides quadrilobatus Globoquadrina dehiscens Glomar Challenger Leg90 Mass spectrometer Finnigan MAT 251 Sample code/label South Pacific/Tasman Sea/CONT RISE Dataset 1993 ftpangaea https://doi.org/10.1594/PANGAEA.52716 https://doi.org/10.1029/93PA02196 2023-01-20T07:35:28Z High-resolution stable isotopic records are presented for the epi-benthic foraminifer Cibicidoides, the inferred shallow-dwelling planktonic Globigerinoides quadrilobatus, and the inferred deep-dwelling planktonic Globoquadrina dehiscens from the middle Miocene (~16-12 Ma) of Deep Sea Drilling Project site 588A, Lord Howe Rise, southwest Pacific. High-resolution, multiple species oxygen and carbon isotopic data define the timing and character of the well-known middle Miocene climatic-oceanographic transition with a resolution comparable to Quaternary records. The benthic foraminiferal delta18O record is marked by several large fluctuations from ~16 to 14.8 Ma, followed by a series of rapid (<50 kyr) delta18O increases that suggest a new state of the ocean-climate system after 14.8 Ma. The total middle Miocene benthic oxygen isotopic increase of 1.2 per mil is largely incorporated in two steps, an increase of 0.8 per mil from 14.5 to 14.0 Ma and a second increase of 0.7 per mil from 13.45 to 12.45 Ma. Each step is comprised of a series of marked delta18O increases, indicative of rapid East Antarctic ice sheet growth and contemporaneous deepwater cooling. A strong covariance of 0.7 per mil between the benthic and deep-dwelling planktonic species from 14.5 to 14.0 Ma (including a rapid increase from 14.1 to 14.05 Ma) suggests a 0.7 per mil increase in the delta18O composition of seawater (delta18Osw) because of East Antarctic ice sheet growth. Comparison of the delta18O record of Gs. quadrilobatus suggests that surface waters warmed at this site by ~3°C from 14.1 to 13.6 Ma. Carbon isotopic time series for each species generally covary throughout the early to middle Miocene interval (~16-12 Ma), confirming that delta13C variations in this interval largely represent reservoir changes. High-resolution delta13C data allow improved resolution of the latter five of six delta13C maxima within the well-known early to middle Miocene carbon isotopic excursion (the Monterey Carbon Isotopic Excursion from 17.0 to 13.5 Ma). ... Dataset Antarc* Antarctic Ice Sheet PANGAEA - Data Publisher for Earth & Environmental Science Antarctic East Antarctic Ice Sheet Pacific ENVELOPE(161.226700,161.226700,-26.111700,-26.111700) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
90-588A AGE Cibicidoides coryelli δ13C δ18O Cibicidoides mundulus Cibicidoides wuellerstorfi Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Globigerinoides quadrilobatus Globoquadrina dehiscens Glomar Challenger Leg90 Mass spectrometer Finnigan MAT 251 Sample code/label South Pacific/Tasman Sea/CONT RISE |
spellingShingle |
90-588A AGE Cibicidoides coryelli δ13C δ18O Cibicidoides mundulus Cibicidoides wuellerstorfi Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Globigerinoides quadrilobatus Globoquadrina dehiscens Glomar Challenger Leg90 Mass spectrometer Finnigan MAT 251 Sample code/label South Pacific/Tasman Sea/CONT RISE Flower, Benjamin P Kennett, James P Stable isotope ratios of foraminifera from DSDP Hole 90-588A (Table 2) |
topic_facet |
90-588A AGE Cibicidoides coryelli δ13C δ18O Cibicidoides mundulus Cibicidoides wuellerstorfi Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Globigerinoides quadrilobatus Globoquadrina dehiscens Glomar Challenger Leg90 Mass spectrometer Finnigan MAT 251 Sample code/label South Pacific/Tasman Sea/CONT RISE |
description |
High-resolution stable isotopic records are presented for the epi-benthic foraminifer Cibicidoides, the inferred shallow-dwelling planktonic Globigerinoides quadrilobatus, and the inferred deep-dwelling planktonic Globoquadrina dehiscens from the middle Miocene (~16-12 Ma) of Deep Sea Drilling Project site 588A, Lord Howe Rise, southwest Pacific. High-resolution, multiple species oxygen and carbon isotopic data define the timing and character of the well-known middle Miocene climatic-oceanographic transition with a resolution comparable to Quaternary records. The benthic foraminiferal delta18O record is marked by several large fluctuations from ~16 to 14.8 Ma, followed by a series of rapid (<50 kyr) delta18O increases that suggest a new state of the ocean-climate system after 14.8 Ma. The total middle Miocene benthic oxygen isotopic increase of 1.2 per mil is largely incorporated in two steps, an increase of 0.8 per mil from 14.5 to 14.0 Ma and a second increase of 0.7 per mil from 13.45 to 12.45 Ma. Each step is comprised of a series of marked delta18O increases, indicative of rapid East Antarctic ice sheet growth and contemporaneous deepwater cooling. A strong covariance of 0.7 per mil between the benthic and deep-dwelling planktonic species from 14.5 to 14.0 Ma (including a rapid increase from 14.1 to 14.05 Ma) suggests a 0.7 per mil increase in the delta18O composition of seawater (delta18Osw) because of East Antarctic ice sheet growth. Comparison of the delta18O record of Gs. quadrilobatus suggests that surface waters warmed at this site by ~3°C from 14.1 to 13.6 Ma. Carbon isotopic time series for each species generally covary throughout the early to middle Miocene interval (~16-12 Ma), confirming that delta13C variations in this interval largely represent reservoir changes. High-resolution delta13C data allow improved resolution of the latter five of six delta13C maxima within the well-known early to middle Miocene carbon isotopic excursion (the Monterey Carbon Isotopic Excursion from 17.0 to 13.5 Ma). ... |
format |
Dataset |
author |
Flower, Benjamin P Kennett, James P |
author_facet |
Flower, Benjamin P Kennett, James P |
author_sort |
Flower, Benjamin P |
title |
Stable isotope ratios of foraminifera from DSDP Hole 90-588A (Table 2) |
title_short |
Stable isotope ratios of foraminifera from DSDP Hole 90-588A (Table 2) |
title_full |
Stable isotope ratios of foraminifera from DSDP Hole 90-588A (Table 2) |
title_fullStr |
Stable isotope ratios of foraminifera from DSDP Hole 90-588A (Table 2) |
title_full_unstemmed |
Stable isotope ratios of foraminifera from DSDP Hole 90-588A (Table 2) |
title_sort |
stable isotope ratios of foraminifera from dsdp hole 90-588a (table 2) |
publisher |
PANGAEA |
publishDate |
1993 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.52716 https://doi.org/10.1594/PANGAEA.52716 |
op_coverage |
LATITUDE: -26.111700 * LONGITUDE: 161.226700 * DATE/TIME START: 1982-12-06T00:00:00 * DATE/TIME END: 1982-12-06T00:00:00 * MINIMUM DEPTH, sediment/rock: 260.63 m * MAXIMUM DEPTH, sediment/rock: 315.50 m |
long_lat |
ENVELOPE(161.226700,161.226700,-26.111700,-26.111700) |
geographic |
Antarctic East Antarctic Ice Sheet Pacific |
geographic_facet |
Antarctic East Antarctic Ice Sheet Pacific |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_source |
Supplement to: Flower, Benjamin P; Kennett, James P (1993): Middle Miocene ocean-climate transition: high-resolution oxygen and carbon isotopic records from Deep Sea Drilling Project Site 588A, southwest Pacific. Paleoceanography, 8(6), 811-843, https://doi.org/10.1029/93PA02196 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.52716 https://doi.org/10.1594/PANGAEA.52716 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.52716 https://doi.org/10.1029/93PA02196 |
_version_ |
1766275935280037888 |