X-ray diffraction results from IODP Hole 389-M0105A
Year: 2023
Type: dataset
Abstract: Results of X-ray diffraction (XRD) analyses from the above given hole of International Ocean Discovery Program (IODP) Expedition 389 (Hawaiian Drowned Reefs). The offshore phase of this expedition took place between 2023-08-31 and 2023-10-31 onboard multipurpose vessel MMA Valour sailing from and to Barbers Point Harbor, Hawai'i, USA, followed by the onshore phase from 2025-02-06 to 2025-02-26 at the Bremen Core Repository (BCR) hosted at MARUM – Center for Marine Environmental Sciences, University of Bremen. During the onshore phase a set of solid-phase samples, with a volume of approx. 10 cubic centimeters each, were taken from the work halves of core sections with the purpose to be later on split into aliquots for the following three analyses: X-ray diffraction, carbon analyses and X-ray fluorescence. Unprocessed samples were freeze-dried, ground and homogenized to a fine powder (<20 µm particle size) by ECORD Science Operator staff using a pestle and an agate mortar or a ball mill. The aliquots for XRD analysis were prepared with the Philips backloading system in the Crystallography and Geomaterials Research laboratories of the Geoscience Department at the University of Bremen (Germany). X-ray diffractograms were measured on a Bruker D8 Discover diffractometer. Mineral identification and semi-quantification were done using the Philips software X'Pert HighScore Version 1.2 (Degen et al., 2014, https://doi.org/10.1017/S0885715614000840) following concepts of Vogt (2009, https://doi.org/10.2204/iodp.proc.302.203.2009). Measurement results are all given in weight percent (wt%).For further methodological information see methods chapter in Webster, J.M. et al., 2025 https://doi.org/10.14379/iodp.proc.389.2025
Authors: Webster, Jody M, Ravelo, Ana Christina, Grant, Hannah, Stewart, Margaret S, Rydzy, Marisa, Le Ber, Erwan, Allison, Nicola, Asami, Ryuji, Boston, Brian, Braga, Juan-Carlos, Brenner, Logan, Chen, Xuefei, Chutcharavan, Peter, Dutton, Andrea, Felis, Thomas, Fukuyo, Naoto, Gischler, Eberhard, Greve, Sahra, Hagen, Amy, Hamon, Youri, Hathorne, Ed C, Humblet, Marc, Jorry, Stephan J, Khanna, Pankaj, McGregor, Helen V, Mortlock, Richard A, Nohl, Theresa, Potts, Donald C, Prohaska, Ana, Prouty, Nancy G, Renema, Willem, Rubin, Kenna Harmony, Westphal, Hildegard, Yokoyama, Yusuke
Institutions: The University of Sydney, University of California, Santa Cruz, British Geological Survey, University of Leicester, Université de Montpellier, Géosciences Montpellier, University of St Andrews, Tohoku University, Auburn University, Universidad de Granada, Barnard College, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, State Key Laboratory of Isotope Geochemistry, New York State Department of Health, University of Minnesota, Wadsworth Center, University of Wisconsin System, University of Bremen, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Goethe University Frankfurt, Heidelberg University, Virginia Tech, IFP Énergies nouvelles, GEOMAR Helmholtz Centre for Ocean Research Kiel, Nagoya University, Geo-Ocean, Indian Institute of Technology Gandhinagar, University of Wollongong, Rutgers, The State University of New Jersey, University of Vienna, University of Copenhagen, United States Geological Survey, Naturalis Biodiversity Center, University of Amsterdam, University of Hawaiʻi at Mānoa, University of Rhode Island, Leibniz Centre for Tropical Marine Research, The University of Tokyo
Language: English
Subfield: Geochemistry and Petrology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7110925802
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