IODP Expedition 378 Elemental analysis (CHNS)

• Main Authors: Röhl, Ursula, Thomas, Deborah J., Childress, Laurel B., Anagnostou, Eleni, Ausín, Blanca, Boscolo Galazzo, Flavia, Dias, Bruna Borba, Brzelinski, Swaantje, Dunlea, Ann G., George, Simon C., Haynes, Laura L., Hendy, Ingrid L., Jones, Heather L., Khanolkar, Sonal S., Kitch, Gabriella D., Lee, Hojun, Raffi, Isabella, Reis, Alex J., Sheward, Rosie M., Sibert, Elizabeth, Tanaka, Erika, Wilkens, Roy H., Yasukawa, Kazutaka, Yuan, Wei, Zhang, Qiang, Zhang, Yang, Drury, Anna J., Hollis, Christopher J.
• Other Authors: International Ocean Discovery Program
• Format: Other/Unknown Material
• Language: unknown
• Published: International Ocean Discovery Program 2022
• Subjects: International Ocean Discovery Program; IODP; JOIDES Resolution; Expedition 378; Site U1553; South Pacific Paleogene Climate; climate and ocean change; Campbell Plateau; high southern latitude; carbon system dynamics; Cenozoic climate history; high CO2 world; chronostratigraphy; ocean circulation; intermediate water formation; hydrologic cycling; biological productivity; ice sheet dynamics; Pacific; Ice Sheet
• Online Access: https://doi.org/10.5281/zenodo.10809889

Fundamental elemental component (total carbon, hydrogen, nitrogen, and sulfur) fluctuations help define the origin, depositional environment, and diagenetic alteration of source materials. To determine C, H, N, and S, solid samples are reacted with a catalyst, separated by chromatography, and detected by thermal conductivity on a FlashEA 1112 CHNS elemental analyzer. Organic carbon can be directly measured on the elemental analyzer by acidification of the sample to drive off carbonate as carbon dioxide before analyzing. Total organic carbon on this report is measured rather than calculated.