Data report: Reconnaissance of organic biomarkers in Leg 199 sediments

Mitchell Lyle; Fredrick Prahl; Margaret Sparrow

Data report: Reconnaissance of organic biomarkers in Leg 199 sediments

Mitchell Lyle
, Fredrick Prahl
, Margaret Sparrow

Center for Geophysical Investigation of the Shallow Subsurface

Oregon State University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Six samples from Sites 1219 and 1221 ranging in age from early Eocene to early Oligocene were analyzed for freely extractable lipids to determine whether the low organic carbon (C_org) sediments of the Eocene equatorial Pacific (C_orgcontent typically 0.03%) are appropriate for biomarker studies. Only one sample from the Oligocene equatorial Pacific (Sample 199-1219A-13H-3, 50-54 cm) contained any biomarkers of interest to paleoceanography. The only lipids identified in the remaining samples appear to be contaminants from drilling or subsequent handling. Sample 199-1219A-13H-3, 50-54 cm, contained alkenone biomarkers specific to haptophyte algae that are used for estimating past mean annual sea-surface temperature (maSST). If the Holocene calibration of maSST is appropriate for the Oligocene, the estimated equatorial temperature is ≥28.3°C, or at least 3°C warmer than modern equatorial maSST at a similar longitude.

Original language	English
Journal	Proceedings of the Ocean Drilling Program: Scientific Results
Volume	199
State	Published - Nov 2004

Cite this

@article{58be04ff886043fd86d38bffdd3dee15,

title = "Data report: Reconnaissance of organic biomarkers in Leg 199 sediments",

abstract = "Six samples from Sites 1219 and 1221 ranging in age from early Eocene to early Oligocene were analyzed for freely extractable lipids to determine whether the low organic carbon (Corg) sediments of the Eocene equatorial Pacific (Corgcontent typically 0.03\%) are appropriate for biomarker studies. Only one sample from the Oligocene equatorial Pacific (Sample 199-1219A-13H-3, 50-54 cm) contained any biomarkers of interest to paleoceanography. The only lipids identified in the remaining samples appear to be contaminants from drilling or subsequent handling. Sample 199-1219A-13H-3, 50-54 cm, contained alkenone biomarkers specific to haptophyte algae that are used for estimating past mean annual sea-surface temperature (maSST). If the Holocene calibration of maSST is appropriate for the Oligocene, the estimated equatorial temperature is ≥28.3°C, or at least 3°C warmer than modern equatorial maSST at a similar longitude.",

author = "Mitchell Lyle and Fredrick Prahl and Margaret Sparrow",

year = "2004",

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language = "English",

volume = "199",

journal = "Proceedings of the Ocean Drilling Program: Scientific Results",

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publisher = "Texas A and M University",

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TY - JOUR

T1 - Data report

T2 - Reconnaissance of organic biomarkers in Leg 199 sediments

AU - Lyle, Mitchell

AU - Prahl, Fredrick

AU - Sparrow, Margaret

PY - 2004/11

Y1 - 2004/11

N2 - Six samples from Sites 1219 and 1221 ranging in age from early Eocene to early Oligocene were analyzed for freely extractable lipids to determine whether the low organic carbon (Corg) sediments of the Eocene equatorial Pacific (Corgcontent typically 0.03%) are appropriate for biomarker studies. Only one sample from the Oligocene equatorial Pacific (Sample 199-1219A-13H-3, 50-54 cm) contained any biomarkers of interest to paleoceanography. The only lipids identified in the remaining samples appear to be contaminants from drilling or subsequent handling. Sample 199-1219A-13H-3, 50-54 cm, contained alkenone biomarkers specific to haptophyte algae that are used for estimating past mean annual sea-surface temperature (maSST). If the Holocene calibration of maSST is appropriate for the Oligocene, the estimated equatorial temperature is ≥28.3°C, or at least 3°C warmer than modern equatorial maSST at a similar longitude.

AB - Six samples from Sites 1219 and 1221 ranging in age from early Eocene to early Oligocene were analyzed for freely extractable lipids to determine whether the low organic carbon (Corg) sediments of the Eocene equatorial Pacific (Corgcontent typically 0.03%) are appropriate for biomarker studies. Only one sample from the Oligocene equatorial Pacific (Sample 199-1219A-13H-3, 50-54 cm) contained any biomarkers of interest to paleoceanography. The only lipids identified in the remaining samples appear to be contaminants from drilling or subsequent handling. Sample 199-1219A-13H-3, 50-54 cm, contained alkenone biomarkers specific to haptophyte algae that are used for estimating past mean annual sea-surface temperature (maSST). If the Holocene calibration of maSST is appropriate for the Oligocene, the estimated equatorial temperature is ≥28.3°C, or at least 3°C warmer than modern equatorial maSST at a similar longitude.

UR - https://www.scopus.com/pages/publications/67849092474

M3 - Article

AN - SCOPUS:67849092474

SN - 0884-5891

VL - 199

JO - Proceedings of the Ocean Drilling Program: Scientific Results

JF - Proceedings of the Ocean Drilling Program: Scientific Results

ER -

Data report: Reconnaissance of organic biomarkers in Leg 199 sediments

Abstract

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