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A sample of hydrothermally mineralized foraminifera ooze (D28A) was collected via dredge from a seamount within the Tuvalu Exclusive Economic Zone in the Pacific Ocean during cruise RR1310 funded by the National Science Foundation aboard the R/V Roger Revelle in 2013. USGS scientists requested these ferromanganese crust samples from the Oregon State University Marine and Geology Repository where they had been archived. Ferromanganese crust samples were sent to USGS for subsampling and x-ray diffraction analyses. Powder x-ray diffraction data for three layer-fractions of the hydrothermal sample are provided here. Measurements were made after heating to 115 C for 48 hours to test the stability of the phyllomanganate...
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This portion of the data release presents X-ray diffractograms of sediment subsamples from push cores collected from Loki's Castle and Favne vent fields, on the Mohns Ridge, in the Norwegian Sea. These data were collected in 2018 and 2019 (USGS Field Activity 2018-691-DD and 2019-624-FA). Location information for the sample is included in each Attribute Definition of this metadata file, as well as in the geochemical data table (LokisMohns_marine_mineral_geochemistry.csv) of this multi-table data release.
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Ferromanganese crusts were collected via dredge from seamounts within the Tuvalu Exclusive Economic Zone in the Pacific Ocean during cruise RR1310 funded by the National Science Foundation aboard the R/V Roger Revelle in 2013. USGS scientists requested these ferromanganese crust samples from the Oregon State University Marine and Geology Repository where they had been archived. Ferromanganese crust samples were sent to USGS for subsampling and x-ray diffraction analyses. Powder x-ray diffraction data for bulk and layer fractions of the ferromanganese crusts are provided here. Location information for the sample is included in each Attribute Definition of this metadata file, as well as in the geochemical data table...
This data release includes solid and aqueous chemical data related to a set of sequential laboratory batch experiments conducted to test and simulate the mobility of trace elements as natural waters contact ore from breccia pipe uranium (BPU) deposits located in northern Arizona. The experiments made use of aquifer-related, sedimentary rocks collected specifically for this study and archival ore material (https://doi.org/10.5066/P9VM6GKF). Data provided on solid phase materials include elemental chemistry (file “Aquifer_related_rock_elemental_chemistry_final.csv ”) and quantitative mineralogy of the sedimentary rocks (file “Aquifer_related_rock_quantitative_mineralogy_final.csv”) used in the laboratory experiments....
    map background search result map search result map Geochemical data from batch experiments to test mobility of trace elements downgradient from breccia-pipe uranium deposits X-ray diffraction data for heat treated samples of hydrothermal minerals from seamounts within the Tuvalu Exclusive Economic Zone X-ray diffraction data for ferromanganese crusts from seamounts within the Tuvalu Exclusive Economic Zone X-ray diffraction data (XRD) for sediment subsamples from push cores from Loki's Castle and Favne vent fields, Mohns Ridge X-ray diffraction data for heat treated samples of hydrothermal minerals from seamounts within the Tuvalu Exclusive Economic Zone Geochemical data from batch experiments to test mobility of trace elements downgradient from breccia-pipe uranium deposits X-ray diffraction data (XRD) for sediment subsamples from push cores from Loki's Castle and Favne vent fields, Mohns Ridge X-ray diffraction data for ferromanganese crusts from seamounts within the Tuvalu Exclusive Economic Zone