Age models and stable isotope ratios from the Mid-Miocene
Mid-Miocene pelagic sedimentary sections can be correlated using intermediate and high resolution oxygen and carbon isotopic records of benthic foraminifera. Precision of a few tens of thousands of years is readily achievable at sites with high sedimentation rates, for example, Deep Sea Drilling Pro...
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1991
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.704918 https://doi.org/10.1594/PANGAEA.704918 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.704918 2023-05-15T17:33:36+02:00 Age models and stable isotope ratios from the Mid-Miocene Woodruff, Fay Savin, Samuel M MEDIAN LATITUDE: -9.783528 * MEDIAN LONGITUDE: 36.773644 * SOUTH-BOUND LATITUDE: -61.579000 * WEST-BOUND LONGITUDE: -133.330200 * NORTH-BOUND LATITUDE: 33.642200 * EAST-BOUND LONGITUDE: 161.226700 * DATE/TIME START: 1972-06-06T00:00:00 * DATE/TIME END: 1988-03-08T17:15:00 1991-10-01 application/zip, 18 datasets https://doi.pangaea.de/10.1594/PANGAEA.704918 https://doi.org/10.1594/PANGAEA.704918 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.704918 https://doi.org/10.1594/PANGAEA.704918 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Woodruff, Fay; Savin, Samuel M (1991): Mid-Miocene isotope stratigraphy in the deep sea: high-resolution correlations, paleoclimatic cycles and sediment preservation. Paleoceanography, 6(6), 755-806, https://doi.org/10.1029/91PA02561 108-667A 115-709A 119-744A 120-747A 24-237 30-289 74-525 74-525A 74-525B 82-563 85-574 85-574A 85-574C 90-588 Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Indian Ocean Indian Ocean//PLATEAU Joides Resolution Leg108 Leg115 Leg119 Leg120 Leg24 Leg30 Leg74 Leg82 Leg85 Leg90 North Atlantic/RIDGE North Atlantic Ocean North Pacific/TROUGH Ocean Drilling Program ODP South Atlantic/CREST South Indian Ridge South Indian Ocean South Pacific/PLATEAU South Pacific/Tasman Sea/CONT RISE Dataset 1991 ftpangaea https://doi.org/10.1594/PANGAEA.704918 https://doi.org/10.1029/91PA02561 2023-01-20T07:31:14Z Mid-Miocene pelagic sedimentary sections can be correlated using intermediate and high resolution oxygen and carbon isotopic records of benthic foraminifera. Precision of a few tens of thousands of years is readily achievable at sites with high sedimentation rates, for example, Deep Sea Drilling Project sites 289 and 574. The mid-Miocene carbon isotope records are characterized by an interval of high d13C values between 17 and 13.5 Ma (the Monterey Excursion of Vincent and Berger 1985) upon which are superimposed a series of periodic or quasi-periodic fluctuations in d13C values. These fluctuations have a period of approximately 440 kyr, suggestive of the 413 kyr cycle predicted by Milankovitch theory. Vincent and Berger proposed that the Monterey Excursion was the result of increased organic carbon burial in continental margins sediments. The increased d13C values (called 13C maxima) superimposed on the generally high mid-Miocene signal coincide with increases in d18O values suggesting that periods of cooling and/or ice buildup were associated with exceptionally rapid burial of organic carbon and lowered atmospheric CO2 levels. It is likely that during the Monterey Excursion the ocean/atmosphere system became progressively more sensitive to small changes in insolation, ultimately leading to major cooling of deep water and expansion of continental ice. We have assigned an absolute chronology, based on biostratigraphic and magneto-biostratigraphic datum levels, to the isotope stratigraphy and have used that chronology to correlate unconformities, seismic reflectors, carbonate minima, and dissolution intervals. Intervals of sediment containing 13C maxima are usually better preserved than the overlying and underlying sediments, indicating that the d13C values of TCO2 in deep water and the corrosiveness of seawater are inversely correlated. This again suggests that the 13C maxima were associated with rapid burial of organic carbon and reduced levels of atmospheric CO2. The absolute chronology we have assigned to the ... Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Pacific Indian ENVELOPE(-133.330200,161.226700,33.642200,-61.579000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
108-667A 115-709A 119-744A 120-747A 24-237 30-289 74-525 74-525A 74-525B 82-563 85-574 85-574A 85-574C 90-588 Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Indian Ocean Indian Ocean//PLATEAU Joides Resolution Leg108 Leg115 Leg119 Leg120 Leg24 Leg30 Leg74 Leg82 Leg85 Leg90 North Atlantic/RIDGE North Atlantic Ocean North Pacific/TROUGH Ocean Drilling Program ODP South Atlantic/CREST South Indian Ridge South Indian Ocean South Pacific/PLATEAU South Pacific/Tasman Sea/CONT RISE |
spellingShingle |
108-667A 115-709A 119-744A 120-747A 24-237 30-289 74-525 74-525A 74-525B 82-563 85-574 85-574A 85-574C 90-588 Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Indian Ocean Indian Ocean//PLATEAU Joides Resolution Leg108 Leg115 Leg119 Leg120 Leg24 Leg30 Leg74 Leg82 Leg85 Leg90 North Atlantic/RIDGE North Atlantic Ocean North Pacific/TROUGH Ocean Drilling Program ODP South Atlantic/CREST South Indian Ridge South Indian Ocean South Pacific/PLATEAU South Pacific/Tasman Sea/CONT RISE Woodruff, Fay Savin, Samuel M Age models and stable isotope ratios from the Mid-Miocene |
topic_facet |
108-667A 115-709A 119-744A 120-747A 24-237 30-289 74-525 74-525A 74-525B 82-563 85-574 85-574A 85-574C 90-588 Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Indian Ocean Indian Ocean//PLATEAU Joides Resolution Leg108 Leg115 Leg119 Leg120 Leg24 Leg30 Leg74 Leg82 Leg85 Leg90 North Atlantic/RIDGE North Atlantic Ocean North Pacific/TROUGH Ocean Drilling Program ODP South Atlantic/CREST South Indian Ridge South Indian Ocean South Pacific/PLATEAU South Pacific/Tasman Sea/CONT RISE |
description |
Mid-Miocene pelagic sedimentary sections can be correlated using intermediate and high resolution oxygen and carbon isotopic records of benthic foraminifera. Precision of a few tens of thousands of years is readily achievable at sites with high sedimentation rates, for example, Deep Sea Drilling Project sites 289 and 574. The mid-Miocene carbon isotope records are characterized by an interval of high d13C values between 17 and 13.5 Ma (the Monterey Excursion of Vincent and Berger 1985) upon which are superimposed a series of periodic or quasi-periodic fluctuations in d13C values. These fluctuations have a period of approximately 440 kyr, suggestive of the 413 kyr cycle predicted by Milankovitch theory. Vincent and Berger proposed that the Monterey Excursion was the result of increased organic carbon burial in continental margins sediments. The increased d13C values (called 13C maxima) superimposed on the generally high mid-Miocene signal coincide with increases in d18O values suggesting that periods of cooling and/or ice buildup were associated with exceptionally rapid burial of organic carbon and lowered atmospheric CO2 levels. It is likely that during the Monterey Excursion the ocean/atmosphere system became progressively more sensitive to small changes in insolation, ultimately leading to major cooling of deep water and expansion of continental ice. We have assigned an absolute chronology, based on biostratigraphic and magneto-biostratigraphic datum levels, to the isotope stratigraphy and have used that chronology to correlate unconformities, seismic reflectors, carbonate minima, and dissolution intervals. Intervals of sediment containing 13C maxima are usually better preserved than the overlying and underlying sediments, indicating that the d13C values of TCO2 in deep water and the corrosiveness of seawater are inversely correlated. This again suggests that the 13C maxima were associated with rapid burial of organic carbon and reduced levels of atmospheric CO2. The absolute chronology we have assigned to the ... |
format |
Dataset |
author |
Woodruff, Fay Savin, Samuel M |
author_facet |
Woodruff, Fay Savin, Samuel M |
author_sort |
Woodruff, Fay |
title |
Age models and stable isotope ratios from the Mid-Miocene |
title_short |
Age models and stable isotope ratios from the Mid-Miocene |
title_full |
Age models and stable isotope ratios from the Mid-Miocene |
title_fullStr |
Age models and stable isotope ratios from the Mid-Miocene |
title_full_unstemmed |
Age models and stable isotope ratios from the Mid-Miocene |
title_sort |
age models and stable isotope ratios from the mid-miocene |
publisher |
PANGAEA |
publishDate |
1991 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.704918 https://doi.org/10.1594/PANGAEA.704918 |
op_coverage |
MEDIAN LATITUDE: -9.783528 * MEDIAN LONGITUDE: 36.773644 * SOUTH-BOUND LATITUDE: -61.579000 * WEST-BOUND LONGITUDE: -133.330200 * NORTH-BOUND LATITUDE: 33.642200 * EAST-BOUND LONGITUDE: 161.226700 * DATE/TIME START: 1972-06-06T00:00:00 * DATE/TIME END: 1988-03-08T17:15:00 |
long_lat |
ENVELOPE(-133.330200,161.226700,33.642200,-61.579000) |
geographic |
Pacific Indian |
geographic_facet |
Pacific Indian |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Woodruff, Fay; Savin, Samuel M (1991): Mid-Miocene isotope stratigraphy in the deep sea: high-resolution correlations, paleoclimatic cycles and sediment preservation. Paleoceanography, 6(6), 755-806, https://doi.org/10.1029/91PA02561 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.704918 https://doi.org/10.1594/PANGAEA.704918 |
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.704918 https://doi.org/10.1029/91PA02561 |
_version_ |
1766132152545574912 |