10.1594/PANGAEA.971793Haeckel, MatthiasMatthiasHaeckel0000-0001-9506-0716GEOMAR - Helmholtz Centre for Ocean Research KielPANGAEA2024Clarion Clipperton Fracture Zonedeep sea miningdeep sea sedimentporosityEvent labelDate/Time of eventLatitude of eventLongitude of eventDEPTH, sediment/rockPorosity, volumeMulticorer with televisionGravity corerMultiCorerPush corerSalt-correctedSO268/1SO268/2Sonne_2JPI Oceans - Ecological Aspects of Deep-Sea Mining (JPIO-MiningImpact)2019-02-28T15:52:24/2019-05-16T10:39:25Dataset10.3289/GEOMAR_REP_NS_59_2010.58031/KIEL0219GELH20110.58031/KIEL0219GEMH20110.58031/KIEL0219GENH20110.58031/KIEL0219GEOH20110.58031/KIEL0219GEPH20110.58031/KIEL0220GEQH20110.58031/KIEL0220GERH20110.58031/KIEL0220GESH20110.58031/KIEL0220GETH20110.58031/KIEL0220GEUH2011846 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalThis dataset comprises measurements of porosity from sediment cores (GC, MUC, ROV-operated PUC) retrieved in polymetallic nodule areas of the Clarion-Clipperton-Zone, NE Pacific. The research was carried out in the framework of the European collaborative JPI Oceans project MiningImpact onboard RV SONNE cruise SO268 in February-May 2019 to collect environmental baseline data prior to a nodule collector test in the German (BGR) and Belgian (GSR) contract areas for polymetallic nodule exploration. Wet sediment samples were subsampled in tightly closed pre-weighed plastic vessels. Water content of the samples was determined by weight difference before and after freeze-drying. Conversion to volume fraction of porewater in the sediment (porosity) assumed a water density of 1.023 g/cm3 and a dry sediment density of 2.5 g/cm3. Salt-correction assumed a salinity of 35.-125.9245167-117.0116833000000211.8447666714.1354166Clarion-Clipperton Fraction Zone, North East Pacific Ocean