U.S. Department of EnergyOffice of Scientific and Technical Information
A molecular organic carbon isotope record of miocene climate changes
Abstract
The difference in carbon-13 ([sup 13]C) contents of hopane and sterane biomarkers in the Monterey formation (Naples Beach, California) parallels the Miocene inorganic record of the change in [sup 18]O ([delta][sup 18]O), reflecting the Miocene evolution from a well-mixed to a highly stratified photic zone (upper 100 meters) in the Pacific. Steranes ([delta][sup 13]C = 25.4 [+-] 0.7 per mil versus the Pee Dee belemnite standard) from shallow photic-zone organisms do not change isotopically throughout the Miocene. In contrast, sulfur-bound C[sub 35] hopanes (likely derived from bacterial plankton living at the base of the photic zone) have systematically decreasing [sup 13]C concentrations in Middle and Late Miocene samples ([delta][sup 13]C = 29.5 to [minus]31.5 per mil), consistent with the Middle Miocene formation of a carbon dioxide-rich cold water mass at the base of the photic zone.
- Authors:
-
- Chevron Petroleum Technology Co., La Habra, CA (United States)
- Netherlands Institute of Sea Research, Texel (Netherlands)
- Australian Geological Survey Organization, Canberra (Australia)
- Publication Date:
- OSTI Identifier:
- 7201710
- Resource Type:
- Journal Article
- Journal Name:
- Science (Washington, D.C.); (United States)
- Additional Journal Information:
- Journal Volume: 263:5150; Journal ID: ISSN 0036-8075
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; BIOLOGICAL MARKERS; ISOTOPE RATIO; CARBON 13; EARTH PLANET; PALEOCLIMATOLOGY; CARBON ISOTOPES; EVEN-ODD NUCLEI; ISOTOPES; LIGHT NUCLEI; NUCLEI; PALEONTOLOGY; PLANETS; STABLE ISOTOPES; 540310* - Environment, Aquatic- Basic Studies- (1990-)
Citation Formats
Schoell, M, Schouten, S, Sinninghe Damste', J S, Leeuw, J.W. de, and Summons, R E. A molecular organic carbon isotope record of miocene climate changes. United States: N. p., 1994.
Web. doi:10.1126/science.263.5150.1122.
Schoell, M, Schouten, S, Sinninghe Damste', J S, Leeuw, J.W. de, & Summons, R E. A molecular organic carbon isotope record of miocene climate changes. United States. https://doi.org/10.1126/science.263.5150.1122
Schoell, M, Schouten, S, Sinninghe Damste', J S, Leeuw, J.W. de, and Summons, R E. 1994.
"A molecular organic carbon isotope record of miocene climate changes". United States. https://doi.org/10.1126/science.263.5150.1122.
@article{osti_7201710,
title = {A molecular organic carbon isotope record of miocene climate changes},
author = {Schoell, M and Schouten, S and Sinninghe Damste', J S and Leeuw, J.W. de and Summons, R E},
abstractNote = {The difference in carbon-13 ([sup 13]C) contents of hopane and sterane biomarkers in the Monterey formation (Naples Beach, California) parallels the Miocene inorganic record of the change in [sup 18]O ([delta][sup 18]O), reflecting the Miocene evolution from a well-mixed to a highly stratified photic zone (upper 100 meters) in the Pacific. Steranes ([delta][sup 13]C = 25.4 [+-] 0.7 per mil versus the Pee Dee belemnite standard) from shallow photic-zone organisms do not change isotopically throughout the Miocene. In contrast, sulfur-bound C[sub 35] hopanes (likely derived from bacterial plankton living at the base of the photic zone) have systematically decreasing [sup 13]C concentrations in Middle and Late Miocene samples ([delta][sup 13]C = 29.5 to [minus]31.5 per mil), consistent with the Middle Miocene formation of a carbon dioxide-rich cold water mass at the base of the photic zone.},
doi = {10.1126/science.263.5150.1122},
url = {https://www.osti.gov/biblio/7201710},
journal = {Science (Washington, D.C.); (United States)},
issn = {0036-8075},
number = ,
volume = 263:5150,
place = {United States},
year = {Fri Feb 25 00:00:00 EST 1994},
month = {Fri Feb 25 00:00:00 EST 1994}
}
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