IODP Expedition 378 Compressional strength (penetrometer)

• 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.10809992

Compressional strength was measured on section halves using a Humbolt Manufacturing Pocket Penetrometer. The penetrometer is only suitable for sediment not affected by cementation (i.e., saturated, clay-rich, soft sediment). Shear strength can be calculated from the measured compressional strength. Compressional strength measurements should be considered only approximate, particularly because the influence of pore pressure changes during the undrained experiment cannot be estimated. Report includes compressional strength results, penetration direction, and adapter foot information.