Donated data 2022-605-DD

Identifier 2022-605-DD
Alternate names NA128
Data provider Nautilus
Location Cascadia Margin
Summary sampling of authigenic carbonates near methane seeps
Comments Data donated to PCMSC from NOAA cruise NA128: https://www.ngdc.noaa.gov/ships/nautilus/NA128_mb.html
Projects
Platform
Nautilus
Length 211 feet; beam 34.5 feet; draft 14.75 feet.
Itinerary
Start (port not specified) 2021-07-23
End (port not specified) 2021-08-03
Bounds
West -125.4928834
East -124.600648
North 46.8849735
South 43.32570814

Personnel

Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Crew members
Information specialist(s)
Nancy G Prouty
Specialist, Information

Data types and categories

Data category: Sonar, Sampling, Location-Elevation
Data type: Multibeam, Geology, Navigation

Equipment used

Equipment Usage description Data types Datasets
Kongsberg EM-302 Multibeam 1
navigation equipment Navigation (no data reported)
sampling equipment Biology, Chemistry, Geology, Experiments (biological), Sediment Properties 1

Datasets


Datasets compiled from multiple sources

Dataset name Equipment Description Dataset contact
Composite multibeam bathymetry surface of the northern Cascadia Margin offshore Washington Kongsberg EM-302 Composite 30-m resolution bathymetric surface of northern Cascadia Margin offshore Washington. The surface was generated from various publicly available bathymetric datasets available in the region. The surface is available as a geoTIFF file. Peter Dartnell
Geochemistry of authigenic carbonates from Cascadia Margin sampling equipment Geochemical analysis of authigenic carbonates from the Cascadia Subduction Zone. Powdered carbonate samples for stable carbon (delta-C-13) and oxygen (delta-O-18) isotopes and carbonate phase were analyzed as a proxy for potential fluid sources, and to better understand how process, such as mixing, and oxidation, can alter the initial fluid isotopic composition and the archived fluid-source signature in the authigenic carbonates. Nancy G Prouty

Publications

Samples collected during this field activity