Santa Barbara Basin Deglacial Hydrocarbon Emissions Data Hill, T.M.; Kennett, J.P.; Valentine, D.L.; Yang, Z.; Reddy, C.M.; Nelson, R.K.; Behl, R.J.; Robert, C.; Beaufort, L. Hill, T.M. Kennett, J.P. Valentine, D.L. Yang, Z. Reddy, C.M. Nelson, R.K. Behl, R.J. Robert, C. Beaufort, L. earth science/paleoclimate/paleoceanography (age,null,null,radiocarbon year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Globigerina bulloides,null,per mil PDB,null,paleoceanography,null,null,N,> 250 microns) earth science/paleoclimate/paleoceanography (notes,null,null,null,null,paleoceanography,null,null,N,tar index) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (MD02-2503>LATITUDE 34.28>LONGITUDE -120.03) (MD02-2504>LATITUDE 34.23>LONGITUDE -119.87) Marine hydrocarbon seepage emits oil and gas, including methane (~30 Tg of CH4 per year), to the ocean and atmosphere. Sediments from the California margin contain preserved tar, primarily formed through hydrocarbon weathering at the sea surface. We present a record of variation in the abundance of tar in sediments for the past 32,000 years, providing evidence for increases in hydrocarbon emissions before and during Termination IA [16,000 years ago (16 ka) to 14 ka] and again over Termination IB (11ŋ10 ka). Our study provides direct evidence for increased hydrocarbon seepage associated with deglacial warming through tar abundance in marine sediments, independent of previous geochemical proxies. Climate-sensitive gas hydrates may modulate thermogenic hydrocarbon seepage during deglaciation. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Hill, T.M. Investigator : Kennett, J.P. Investigator : Valentine, D.L. Investigator : Yang, Z. Investigator : Reddy, C.M. Investigator : Nelson, R.K. Investigator : Behl, R.J. Investigator : Robert, C. Investigator : Beaufort, L. 2006-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/5581 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hill2006b https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md2-2503-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md2-2504-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hill2006b https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md2-2503-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md2-2504-tab.txt English https://www.ncdc.noaa.gov/paleo/study/5581 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hill2006b https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md2-2503-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md2-2504-tab.txt Hill, T.M., J.P. Kennett, D.L. Valentine, Z. Yang, C.M. Reddy, R.K. Nelson, R.J. Behl, C. Robert, and L. Beaufort. 2006. Climatically driven emissions of hydrocarbons from marine sediments during deglaciation. Proceedings of the National Academy of Sciences, 103(37), 13570-13574. START YEAR: 35757 cal yr BP * END YEAR: 141 cal yr BP -120.03 34.23 -119.87 34.28