Ferromanganese crusts, nodules, and hydrothermally altered rocks were collected via dredge within the Amerasia Basin in the Arctic Ocean during USCGC icebreaker Healy cruises HLY0805, HLY0905, and HLY1202 in 2008, 2009, and 2012 respectively. Dredged samples were donated and sent to USGS for subsampling and major and trace element geochemical analyses. Major and trace element data as well as location information (latitude, longitude, depth) for each sample are provided here.

This portion of the data release provides geochemical analyses data of ferromanganese rock samples collected off the coast of Hawaii. Ferromanganese crusts, nodules, and coated cobbles were collected via ROV from seamounts within the Papahanaumokuakea Marine National Monument (PMNM) in the Pacific Ocean during E/V Nautilus expeditions NA134 and NA138 in 2021 and 2022, respectively. Ferromanganese rock samples were sent to USGS for subsampling and major and trace element geochemical analyses. Major and trace ...

Powder x-ray diffraction data (XRD) for samples are provided in this portion of the data release. Ferromanganese crusts, nodules, coated cobbles, and push core sediments were collected via ROV from seamounts off the coast of Hawaii and within the Papahanaumokuakea Marine National Monument (PMNM) in the Pacific Ocean during E/V Nautilus expeditions NA134 and NA138 in 2021 and 2022, respectively. Samples were sent to USGS for subsampling and x-ray diffraction analyses. Location information for the samples is ...

This portion of the data release presents computed tomography (CT) images from gravity core and push core sediment samples collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean (USGS Field Activity 2022-621-FA). These data were collected in 2022 and 2023. A Geotek Rotating X-Ray CT (RXCT) system was used to acquire x-ray images and perform CT reconstructions of unsplit core segments. The full three-dimensional data set consists of individual axial slices which are ...

This portion of the data release contains geochemical data of sediment subsamples from push cores and gravity cores collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). Data include major, minor, and trace element concentrations, location information (latitude, longitude, depth), analytical methods, and instrument detection limits where available.

This portion of the data release contains grain size and total carbon analysis of sediment subsamples from push cores and gravity cores collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). Data include location information (latitude, longitude, depth), and the weight percent of 65 phi bins, four size fractions (gravel, sand, silt, clay), total carbon, inorganic carbon, organic carbon, and calcium ...

This portion of the data release contains latitude, longitude, and water depth values for push cores and gravity cores collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA).

This portion of the data release presents Multi-Sensor Core Logger (MSCL) gamma-ray density and magnetic susceptibility of push cores and gravity core sections collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). Data were collected from 18 gravity core sections and 34 push cores at 1 cm resolution. Data are provided in comma-delimited files (.csv).

This portion of the data release presents linescan images (photographs) from push cores and gravity core sections collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). Images were obtained from 18 gravity core sections and 39 push cores at 50-micron (200 pixel per cm) resolution. Color images in 16-bit TIFF format are provided for each core segment, along with proprietary metadata files containing ...

This portion of the data release presents X-ray diffractograms of sediment subsamples from push cores and gravity cores collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). Location information for the sample is included in each Attribute Definition of this metadata file, as well as in TN403 CoreLocations.

This portion of the data release contains X-ray fluorescence (XRF) data from push cores and gravity cores collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). The XRF data were collected with the sensor in “geochem" mode and are provided in comma-delimited files (.csv).

This portion of the data release contains X-ray fluorescence (XRF) data from push cores and gravity cores collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). The XRF data were collected with the sensor in “soil" mode and are provided in comma-delimited files (.csv).

Coast Train is a library of images of coastal environments, annotations, and corresponding thematic label masks (or ‘label images’) collated for the purposes of training and evaluating machine learning (ML), deep learning, and other models for image segmentation. It includes image sets from both geospatial satellite, aerial, and UAV imagery and orthomosaics, as well as non-geospatial oblique and nadir imagery. Images include a diverse range of coastal environments from the U.S. Pacific, Gulf of Mexico, ...