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

Field Activity 2019-642-FA

Identifier 2019-642-FA
Alternate names CalDIG II
Purpose Benthic habitat, structure, and sedimentary processes in support of offshore energy development.
Location South Central California
Summary Piston and Gravity Coring. Coring was conducted for the most part during daylight hours at the request of the Ship’s Captain. The piston coring rail system was arranged on the fantail at a slight diagonal to allow a line and capstan to be rigged on the starboard deck to pull the corer along rails. Cores were collected on 12 of the 13 days at sea. A total of 41 cores were collected. The ROV dives were impacted more significantly by weather conditions that the coring operations. Objectives had to be achieved by modifying the original site plan. Of the original plan ten of the original sites were surveyed three of which were considered priority 1 sites out of 23 total dives. Video data are archived with MBARI.
Info derived Surficial geology, benthic habitat, grain size, sediment ages, pore water chemistry
Comments Numerous MBARI staff for coring and ROV.
Projects
Platform
Bold Horizon
Length 170 feet.
Itinerary
Start San Diego, CA 2019-09-09
End San Francisco, CA 2019-09-27
Days in the field 14
Bounds
West -122.02
East -120.91
North 35.84
South 34.51
Marine operations Yes

Personnel

Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators Guy R Cochrane
Crew members
Peter Dal Ferro
Scientist, Staff
Daniel C Powers
Scientist, Staff
Maureen AL Walton
Scientist, Staff
Information specialist(s)
Guy R Cochrane
Specialist, Information
Affiliate principal Charles Paull (MBARI)

Data types and categories

Data category: Imagery, Sampling, Location-Elevation, Seismics
Data type: Video, Geology, Navigation, Sub Bottom Profiler

Documents: Notes and log books

Name Description
CalDIG Cruise Report California Deepwater Investigations and Groundtruthing (CalDIG) Part 2 (Video and Sampling) Cruise Summary

Equipment used

Equipment Usage description Data types Datasets
GPS Navigation (no data reported)
3.5khz Sub Bottom Profiler (no data reported)
Remotely Operated Vehicle Photo, Video, Biology, Chemistry, Geology 2
pistoncore Geology 5

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
Biotic observations derived from underwater video Remotely Operated Vehicle Physical, environmental, and biotic observations were derived from underwater video collected by the Monterey Bay Aquarium Research Institute (MBARI) using remotely operated vehicles (ROVs) offshore of Morro Bay, California. The data were acquired during three separate surveys in 2019 in support of the U.S. Geological Survey (USGS)/Bureau of Ocean Energy Management (BOEM) California Deepwater Investigations and Groundtruthing I (Cal DIG I) project. Guy R Cochrane
Substrate observations derived from underwater video Remotely Operated Vehicle Physical, environmental, and substrate observations were derived from underwater video collected by the Monterey Bay Aquarium Research Institute (MBARI) using remotely operated vehicles (ROVs) offshore of Morro Bay, California. A majority of the data were acquired during three separate surveys in 2019 in support of the U.S. Geological Survey (USGS)/Bureau of Ocean Energy Management (BOEM) California Deepwater Investigations and Groundtruthing I (Cal DIG I) project. Guy R Cochrane
Location and depth data for piston and gravity cores pistoncore This dataset includes the location and depth information for 39 piston and gravity cores that were collected as part of a groundtruthing survey in September 2019 aboard the R/V Bold Horizon. This dataset is one of several collected as part of the Bureau of Ocean Energy Management (BOEM)-funded California Deepwater Investigations and Groundtruthing (Cal DIG I) project. Daniel J Kennedy
Multi-Sensor Core Logger (MSCL) data of piston and gravity cores pistoncore This dataset includes multi-sensor core logger (MSCL) data for 39 piston and gravity cores that were collected as part of a groundtruthing survey in September 2019 aboard the R/V Bold Horizon. This dataset is one of several collected as part of the Bureau of Ocean Energy Management (BOEM)-funded California Deepwater Investigations and Groundtruthing (Cal DIG I) project. Daniel J Kennedy
Photographs of piston and gravity cores pistoncore This dataset includes photographs of 39 piston and gravity cores that were collected as part of a groundtruthing survey in September 2019 aboard the R/V Bold Horizon. This dataset is one of several collected as part of the Bureau of Ocean Energy Management (BOEM)-funded California Deepwater Investigations and Groundtruthing (Cal DIG I) project. Daniel J Kennedy
Porewater chloride and sulfate concentrations from piston and gravity cores pistoncore This dataset includes concentrations chloride and sulfate in porewater from piston and gravity cores collected in September 2019 offshore of south-central California aboard the R/V Bold Horizon. This dataset is one of several collected as part of the Bureau of Ocean Energy Management (BOEM)-funded California Deepwater Investigations and Groundtruthing (Cal DIG I) project.

Datasets compiled from multiple sources

Dataset name Equipment Description Dataset contact
Radiocarbon age dating of biological material from cores collected off central California in 1999, 2006, and 2019 pistoncore Results of radiocarbon age dating of planktic and benthic foraminifera collected from cores obtained in 1999, 2006, and 2019 offshore central California in the vicinity of Morro Bay. Mary L McGann

Publications

Samples collected during this field activity