10.1594/PANGAEA.987555Webster, Jody MJody MWebster0000-0002-0005-6448School of Geosciences, Geocoastal Research Group, University of SydneyRavelo, Ana ChristinaAna ChristinaRavelo0000-0003-3929-677XOcean Sciences Department, Institute of Marine Sciences, University of California Santa CruzGrant, HannahHannahGrantBritish Geological Survey, The Lyell CentreStewart, Margaret SMargaret SStewart0000-0002-0633-252XBritish Geological Survey, The Lyell CentreRydzy, MarisaMarisaRydzyDepartment of Geology, Geography and the Environment, University of LeicesterLe Ber, ErwanErwanLe Ber0000-0002-8020-2029Géosciences Montpellier, Université de MontpellieAllison, NicolaNicolaAllison0000-0003-3720-1917Scottish Oceans Institute, University of St. AndrewsAsami, RyujiRyujiAsami0000-0002-8583-0817Department of Earth Science, Tohoku UniversityBoston, BrianBrianBoston0000-0002-0647-4018Department of Geosciences, Auburn UniversityBraga, Juan-CarlosJuan-CarlosBraga0000-0002-2657-0584Department of Stratigraphy and Paleontology, Universidad de GranadaBrenner, LoganLoganBrennerEnvironmental Science, Barnard CollegeChen, XuefeiXuefeiChen0000-0002-7789-671XGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Isotope GeochemistryChutcharavan, PeterPeterChutcharavanEarth and Environmental Sciences, University of MinnesotaDivision of Environmental Health Sciences, Wadsworth Center, New York State Department of HealthDutton, AndreaAndreaDutton0000-0002-3836-119XDepartment of Geoscience, University of Wisconsin SystemFelis, ThomasThomasFelis0000-0003-1417-9657MARUM - Center for Marine Environmental Sciences, University BremenFukuyo, NaotoNaotoFukuyoGeological Survey of Japan, National Institute of Advanced Industrial Science and TechnologyGischler, EberhardEberhardGischlerGoethe University FrankfurtGreve, SahraSahraGreve0000-0002-1030-8362Institute of Environmental Physics, Heidelberg UniversityHagen, AmyAmyHagenDepartment of Geosciences, Virginia TechHamon, YouriYouriHamonIFP Énergies NouvellesHathorne, Ed CEd CHathorne0000-0002-7813-2455GEOMAR - Helmholtz Centre for Ocean Research KielHumblet, MarcMarcHumbletDepartment of Earth and Planetary Sciences, Nagoya UniversityJorry, Stephan JStephan JJorry0000-0001-8240-9042Geo-OceanKhanna, PankajPankajKhanna0000-0001-7165-3082Indian Institute of Technology GandhinagarMcGregor, Helen VHelen VMcGregor0000-0002-4031-2282School of Earth, Atmospheric and Life Sciences, University of WollongongMortlock, Richard ARichard AMortlockDepartment of Earth and Planetary Sciences, Rutgers University, PiscatawayNohl, TheresaTheresaNohl0000-0001-8670-0478Department of Palaeontology, University of ViennaPotts, Donald CDonald CPottsEcology and Evolutionary Biology Department, University of California, Santa CruzProhaska, AnaAnaProhaskaGlobe Institute, University of CopenhagenProuty, Nancy GNancy GProuty0000-0002-8922-0688Pacific Coastal and Marine Sciences, United States Geological SurveyRenema, WillemWillemRenema0000-0002-1627-5995Institute for Biodiversity and Ecosystem Dynamics, Naturalis Biodiversity CenterRubin, Kenna HarmonyKenna HarmonyRubinDepartment of Earth Sciences, University of Hawaiʻi at MānoaGraduate School of Oceanography, University of Rhode Island at NarragansettWestphal, HildegardHildegardWestphal0000-0001-7324-6122Leibniz-Zentrum für Marine Tropenforschung, Bremen, GermanyYokoyama, YusukeYusukeYokoyama0000-0001-7869-5891Atmosphere and Ocean Research Institute, The University of TokyoPANGAEA2025central PacificCoral ReefEarth climate feedbacksEarth history tipping pointsExpedition 389Hawaiian Drowned ReefsHawaiian geologyInternational Ocean Discovery Program (IODP)MMA ValourPaleoclimatesea levelvolcanicEvent labelSample code/labelProposed International Geo Sample NumberDepth, sediment/rock, top/minimumDepth, sediment/rock, bottom/maximumMain LithologyQuartzCristobalitePlagioclaseCalciteMagnesium-CalciteAragoniteMineralsSiderite/Magnesite ratioBariteSodium chlorideBiotiteChloritePyroxened-valueBenthic Portable Remotely Operated Drill (PROD5)DSDP/ODP/IODP sample designationX-ray diffractometer, Bruker, D8 DiscoverCalculatedExp389MMA ValourIntegrated Ocean Drilling Program / International Ocean Discovery Program (IODP)2023-09-10T00:00:00/2023-09-12T00:00:00Dataset10.14379/iodp.proc.389.2025100 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalResults 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.389.2025Data was submitted and proofread by Vera Barbara Bender, MARUM - Center for Marine Environmental Sciences (University Bremen) on behalf of ECORD Science Operator Data Management (https://www.ecord.org).-156.062876919.942109Hawaii, USA