1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System

Field Activity 2022-621-FA

Identifier 2022-621-FA
Alternate names Escanaba 2022; TN-403
Purpose We will be studying the Escanaba Trough to characterize the sulfide minerals and hydrothermal fluids in Escanaba Trough in order to investigate the continuity of both through time; to characterize the ecosystem, including microbes and megafauna inhabiting the trough; and to explore interactions between marine life, the metal sulfide deposits, and the hydrothermal and oceanic environment enveloping both. We will also be doing AUV based mapping.
Location Escanaba Trough; Southern Gorda Ridge; US EEZ; Offshore CA
Summary 20 days at sea on R/V Thompson using ROV Jason, AUV Sentry, gravity coring, and CTD casts
Info derived Mineral distribution; metal sulfide geochemistry; species distribution; microbiology distribution; water column chemistry; hydrothermal fluid chemistry; sediment geochemistry; organic geochemistry
Projects
Platform
ROV Jason
Two-body ROV system. A 10-kilometer (6-mile) reinforced fiber-optic cable delivers electrical power and commands from the ship through Medea and down to Jason, which then returns data and live video imagery. Medea serves as a shock absorber, buffering Jason from the movements of the ship, while providing lighting and a bird’s eye view of the ROV during seafloor operations. Jason is equipped with sonars, video and still imaging systems, lighting, and numerous sampling systems.
Itinerary
Start Newport, OR 2022-05-24
End Newport, OR 2022-06-13
Days in the field 20
Bounds
West -127.53
East -127.35
North 41.15
South 40.2
Marine operations Yes

Personnel

Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators Amy Gartman
Crew members
Affiliate principal Amanda Demopoulos (USGS); Nancy Prouty (USGS); Kiana Frank (University of Hawaii); Isobel Yeo (Southampton); John Jamieson (Memorial University); Joe Resing (NOAA)

Data types and categories

Data category: Environmental Data, Sonar, Imagery, Electro-Magnetic, Sampling
Data type: ORP, CTD, Sidescan, Multibeam, Video, Magnetics, Geology, Biology, Chemistry

Equipment used

Equipment Usage description Data types Datasets
Push corer Surveys (geochemical), Surveys (biological), Biology, Geology 15
Hand-grab sample Biology, Chemistry, Geology 1
Gravity Core Geology 10
High Temperature Major Samplers Chemistry (no data reported)
High Temperature Gas Tight Samplers Chemistry (no data reported)
Magnetometer Magnetics (no data reported)
Camera-video Photo, Video (no data reported)
Side-scan sonar Sidescan (no data reported)
CTD - FSI CTD, Mooring (physical oceanography) (no data reported)
niskin bottle Chemistry (no data reported)
PMEL MAPR ORP (no data reported)

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
Compound specific isotope analysis of amino acids from Escanaba Trough sediments, off the coast of Northern California, USA, from May-June 2022 Push corer Stable carbon isotope ratios (d13C), stable nitrogen isotope ratios (d15N), and molar percentage data of amino acids were determined on one to five cm subsamples of sediment push cores collected from the Escanaba Trough during May to June 2022. Hope L Ianiri
Grain size of bulk sediments from the Escanaba Trough, off the coast of Northern California, USA, from May-June 2022 Push corer Sediment grain size was determined on one to five cm subsamples of push cores collected from the Escanaba Trough during May to June 2022. Hope L Ianiri
Lipid biomarker data from Escanaba Trough sediments, off the coast of Northern California, USA, from May-June 2022 Push corer Lipid biomarkers, including n-alkanes, polycyclic aromatic hydrocarbons (PAHs), and sterols, were measured on sediments from the Escanaba Trough, a hydrothermal spreading center off the coast of Northern CA. Hope L Ianiri
Organic geochemistry data of bulk sediments from the Escanaba Trough, off the coast of Northern California, USA, from May-June 2022 Push corer Bulk organic geochemistry data were determined on one to five cm subsamples of sediment push cores collected from the Escanaba Trough during May to June 2022. These data include percent total organic carbon (percent TOC ), total nitrogen (percent TN), carbon to nitrogen ratios (C/N), stable carbon isotope ratios (d13C), stable nitrogen isotope ratios (d15N), radiocarbon values (D14C), and grain size (mean phi). Location information (for example , latitude, longitude, and depth) is also reported. Hope L Ianiri
Organic geochemistry data of carbon fractions from Escanaba Trough sediments, off the coast of Northern California, USA, from May-June 2022 Push corer Organic carbon fractions representing different labilities were extracted from sediments collected in the Escanaba Trough from May and June 2022. Organic carbon fractions included the total lipid extract and acid insoluble material. These fractions were analyzed for percent total organic carbon (TOC), total nitrogen (TN), stable carbon isotope ratios (d13C), stable nitrogen isotope ratios (d15N) and radiocarbon values (D14C). Percent TOC and TN data was used to calculate the contribution of each organic carbon fraction to the total organic carbon. Hope L Ianiri
Sediment porewater nutrient data from the Escanaba Trough, off the coast of Northern California, USA, from May-June 2022 Push corer Nutrients were measured from porewaters of sediment within the Escanaba Trough, a hydrothermal spreading center. Location information (latitude, longitude, and depth) is also reported. Hope L Ianiri

Datasets compiled from multiple sources

Dataset name Equipment Description Dataset contact
Location and water depth for gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Push corer 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. Katlin Adamczyk
Computed tomography (CT) scans of gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Push corer 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. Katlin Adamczyk
Geochemistry of sediment subsamples from gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Push corer 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. Katlin Adamczyk
Grain size analysis and total carbon content of sediment subsamples from gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Push corer 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). Katlin Adamczyk
Multi-Sensor Core Logger (MSCL) gamma-ray density and magnetic susceptibility of gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Push corer 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. Katlin Adamczyk
Photographs of gravity core sections and push cores from the Escanaba Trough vent field, Gorda Ridge Push corer Linescan images (photographs) from push cores and gravity core sections collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. Katlin Adamczyk
X-ray diffraction (XRD) data for sediment subsamples from gravity and push cores from the Escanaba Trough (Gorda Ridge) Push corer 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. Katlin Adamczyk
X-ray fluorescence (XRF) scans of gravity cores and push cores from the Escanaba Trough (Gorda Ridge), geochem mode Push corer 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. Katlin Adamczyk
X-ray fluorescence (XRF) scans of gravity cores and push cores from the Escanaba Trough (Gorda Ridge), soil mode Push corer 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. Katlin Adamczyk
SedLab Hand-grab sample Data from PCMSC sediment lab, archived on FAD. Angela CML Tan
SedLab Gravity Core Data from PCMSC sediment lab, archived on FAD. Angela CML Tan
Location and water depth for gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Gravity Core 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. Katlin Adamczyk
Computed tomography (CT) scans of gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Gravity Core 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. Katlin Adamczyk
Geochemistry of sediment subsamples from gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Gravity Core 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. Katlin Adamczyk
Grain size analysis and total carbon content of sediment subsamples from gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Gravity Core 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). Katlin Adamczyk
Multi-Sensor Core Logger (MSCL) gamma-ray density and magnetic susceptibility of gravity cores and push cores from the Escanaba Trough (Gorda Ridge) Gravity Core 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. Katlin Adamczyk
Photographs of gravity core sections and push cores from the Escanaba Trough vent field, Gorda Ridge Gravity Core Linescan images (photographs) from push cores and gravity core sections collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. Katlin Adamczyk
X-ray diffraction (XRD) data for sediment subsamples from gravity and push cores from the Escanaba Trough (Gorda Ridge) Gravity Core 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. Katlin Adamczyk
X-ray fluorescence (XRF) scans of gravity cores and push cores from the Escanaba Trough (Gorda Ridge), geochem mode Gravity Core 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. Katlin Adamczyk
X-ray fluorescence (XRF) scans of gravity cores and push cores from the Escanaba Trough (Gorda Ridge), soil mode Gravity Core 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. Katlin Adamczyk

Publications

Samples collected during this field activity