Lyle, Mitchell et al. (2006): Reconnaissance of organic biomarkers in Leg 199 sediments

ODP 199
ODP 199 1219
ODP 199 1221


Lyle, Mitchell
Boise State University, Center for Geophysical Investigation of Shallow Subsurface and Department of Geoscience, Boise, ID, United States

Prahl, Fredrick
Boise State University, United States

Sparrow, Margaret
Florida State University, United States

Reconnaissance of organic biomarkers in Leg 199 sediments
In: Wilson, Paul A., Lyle, Mitchell W., Janecek, Thomas R., Backman, Jan, Busch, William H., Coxall, Helen K., Faul, Kristina, Gaillot, Philippe, Hovan, Steven A., Knoop, Peter, Kruse, Silke, Lanci, Luca, Lear, Caroline, Moore, Theodore C., Nigrini, Catherine A., Nishi, Hiroshi, Nomura, Ritsuo, Norris, Richard D., Palike, Heiko, Pares, Josep M., Quintin, Lacie, Raffi, Isabella, Rea, Brice R., Steiger, Torsten H., Tripati, Aradhna, Vanden Berg, Michael D., Wade, Bridget, Proceedings of the Ocean Drilling Program; scientific results; Paleogene equatorial transect; covering Leg 199 of the cruises of the drilling vessel JOIDES Resolution; Honolulu, Hawaii, to Honolulu, Hawaii; Sites 1215-1222; 23 October-16 December 2001
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
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 (sub org) ) sediments of the Eocene equatorial Pacific (C (sub org) content 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 > or =28.3 degrees C, or at least 3 degrees C warmer than modern equatorial maSST at a similar longitude.
Coverage:Geographic coordinates:
West:-143.4200East: -142.0100

Stratigraphy; biomarkers; carbon; Cenozoic; Eocene; Equatorial Pacific; experimental studies; fatty acids; geochemistry; laboratory studies; Leg 199; lipids; marine sediments; Ocean Drilling Program; ODP Site 1219; ODP Site 1221; Oligocene; organic acids; organic carbon; organic compounds; Pacific Ocean; paleo-oceanography; Paleogene; sea-surface temperature; sediments; Tertiary;