Guaymas Basin 17KYr High Resolution Geochemical Data Dean, W.E. Dean, W.E. earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,GGC55 - depth of sample in core GGC55 to 220 cm - then depth of sample from JPC56 relative to correlative depth in GGC55) earth science/paleoclimate/paleoceanography (calcium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (cobalt,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (calcium carbonate,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (strontium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (potassium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (copper,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (yttrium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (lanthanum,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (organic carbon,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (iron,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (manganese,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (nickel,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (chromium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (aluminum,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (magnesium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (phosphorus,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (titanium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (molybdenum,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,JPC56) earth science/paleoclimate/paleoceanography (scandium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (cadmium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (lead,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (lithium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (sodium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (beryllium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (vanadium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (zinc,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (arsenic,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (barium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleoceanography (zirconium,sediment,null,percent,null,paleoceanography,null,inductively-coupled plasma atomic emission spectroscopy,N,null) earth science/paleoclimate/paleocean (GGC55>LATITUDE 27.47>LONGITUDE -112.1) Records of past climate and ocean circulation derived from marine sediments. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations. STUDY NOTES: Geochemical data from the Gulf of California, Guaymas Basin cores GGC55 and JPC56. Giant gravity core (GGC) 55 and jumbo piston core (JPC) 56 are two of a series of paired, overlapping gravity and piston cores that were collected in July 1990 on R/V Atlantis II cruise 125/8. These two cores were collected on the western slope of the Guaymas Basin, GGC55 at 27deg28.22'N, 112deg6.33'W in a water depth of 820m, and JPC56 at 27deg28.16'N, 112deg6.26'W in a water depth of 818m . Both cores were sampled at 10-cm intervals for geochemical analyses. The samples were analyzed for 40 major, minor, and trace elements by inductively coupled, argon plasma, atomic emission spectrometry (ICP-AES; Briggs, 2002). Rock standards (USGS) were included with the sediment samples, and 10% of the samples were duplicated. The precision, determined by analyzing rock standards and duplicate sediment samples, is better than 10%, and usually is better than 5%, at a concentration of 10 times the limit of detection. Results for 8 major elements (in weight percent) and 19 minor and trace elements (in parts per million) are given here. Dried samples were analyzed for weight percentages of total carbon (TC) and inorganic carbon (IC) by coulometric titration of carbon dioxide following extraction from the sediment by combustion at 950C and acid volatilization, respectively (Engleman et al., 1985). Percent total organic carbon (% TOC) was calculated as the difference (TC-IC), and percent CaCO3 was calculated as CaCO3 1/4 IC=0:12; where 0.12 is the fraction of carbon in CaCO3. The accuracy and precision of this method, determined from hundreds of replicate standards, usually are better than 0.10% for both TC and IC. Methods References Briggs, P.H., 2002. The determination of forty elements in geological and botanical samples by inductively coupled plasma-atomic emission spectrometry, In: Taggart, J.E., (Ed.), Analytical methods for chemical analyses of geologic and other materials, U.S. Geological Survey Open-File Report 02-223, pp. G1-20. Engleman, E.E., Jackson, L.L., Norton, D.R., Fischer, A.G., 1985. Determination of carbonate carbon in geological materials by coulometric titration. Chemical Geology 53, 125-128. Keigwin, L.D., 2002, Late Pleistocene-Holocene paleoceanography and ventilation of the Gulf of California: Jour. Oceanog., v. 58, p. 421-432. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Dean, W.E. 2014-01-22 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/16054 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/dean2006b/dean2006b.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/dean2006b/dean2006b.txt English https://www.ncdc.noaa.gov/paleo/study/16054 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/dean2006b/dean2006b.txt Walter E. Dean2006The geochemical record of the last 17,000 years in the Guaymas Basin, Gulf of CaliforniaChemical Geology2323-487-9810.1016/j.chemgeo.2006.02.017http://www.sciencedirect.com/science/article/pii/S000925410600129X John A. Barron, David Bukry, Walter E. Dean2005Paleoceanographic history of the Guaymas Basin, Gulf of California, during the past 15,000 years based on diatoms, silicoflagellates, and biogenic sedimentsMarine Micropaleontology563-481-10210.1016/j.marmicro.2005.04.001http://www.sciencedirect.com/science/article/pii/S0377839805000356 Lloyd D. Keigwin2002Late Pleistocene-Holocene Paleoceanography and Ventilation of the Gulf of CaliforniaJournal of Oceanography582421-43210.1023/A:1015830313175http://link.springer.com/article/10.1023/A%3A1015830313175 Pride, C., R.C. Thunell, D. Sigman, L.D. Keigwin, M.A. Altabet, and E. Tappa. 1999. Nitrogen isotopic variations in the Gulf of California since the last deglaciation: Response to global climate change. Paleoceanography 14(3):397-409. START YEAR: 17300 cal yr BP * END YEAR: 2230 cal yr BP -112.1 27.47 -112.1 27.47