Field Activity P194AR

Identifier P194AR
Alternate names P-1-94-AR,AOS
Purpose Climatic history of the western Arctic Ocean basin; Origin of the Amerasia Basin, Arctic Ocean, and its continental margins. Paleoclimate of Amerasia Basin, Arctic Ocean; geologic framework, Arctic Basin
Description Chief Scientist: Art Grantz. Data (pistoncore, boxcore) of field activity P-1-94-AR in Arctic Ocean from 07/25/1994 to 08/30/1994
Location Arctic Ocean
Summary Collected 18 box cores; 16 piston cores; 17 bulk sediment samples were collected from ice flows; 7 bulk sediment samples were collected for radionuclide testing; 3 wood samples were collected; 38 samples were filtered to determine suspended particulate matter concentration (29 were ice core samples, 6 were snow samples, 3 were water samples)
Comments physical data holdings (From 8/12/94 USGS Bulletin) August 10,1994. Art Grantz sends the following progress report: We are working north near 82d N, 175d E doing mainly biologic studies of the water column, benthic biology, sea ice studies, and air and upper water column chemistry. The geologic program has been collecting the required global change piston and box cores, but no seismic data to date. At least two of our piston cores are about 28 ft. long, but none have reached bedrock. Erk Reimnitz is having a field day on and in the ice. Sea ice conditions were moderate early on, but fairly difficult now. However, satellite imagery suggests that ice conditions are somewhat easier to the northwest, over Wrangell Abyssal Plain, where we are now headed. We will try to concentrate our seismic and coring program on prime geologic targets between 85d N and the Pole and 150d and 175d W. Worked from Point Barrow to the North Pole. Two ships are involved, the U.S. Coast Guard ship Polar Sea and Canadian Coast Guard ice-breaker Louis S. St. Laurent. Geologic sampling and seismic reflection studies were conducted in the55-day expedition across 3,700 miles of Arctic Ocean. Some cores came up bubbling so they were sealed in pressure vessels to test whether they might contain gas hydrate. AOS (Arctic Ocean Section) Staff information imported from InfoBank Art Grantz (USGS Western Region) - Chief Scientist Pat Hart (USGS Western Region) - Geophysicist Mike Mullen (USGS Western Region) - Geologist Walt Olson (USGS Western Region) - Technician Kevin O'Toole (USGS Western Region) - Technician Larry Phillips (USGS Western Region) - Scientist Fred Payne (USGS Western Region) - Electronics Technician Erk Reimnitz (USGS Western Region) - Scientist Bob Robinson (USGS Western Region) - Unspecified Steve May (USGS Western Region) - Scientist
Polar Sea
Length: 399 ft (122 m); Beam: 83 ft 6 in (25.45 m).
Start (port not specified) 1994-07-25
End (port not specified) 1994-08-30
West -170.8594
East -132.03125
North 77.09351562
South 67.09351562


Principal investigators Grantz, Art
Crew members
Patrick E Hart
Scientist, Staff
Mullen, Mike
Scientist, Staff
May, Steve
Scientist, Staff
Olson, Walt
Scientist, Staff
O'Toole, Kevin
Scientist, Staff
Payne, Fred
Scientist, Staff
Reimnitz, Erk
Scientist, Staff
Robinson, Bob
Scientist, Staff
Phillips, Larry
Scientist, Staff

Data types and categories

Data category: Location-Elevation, Sampling, Sonar
Data type: Navigation, Biology, Geology, Single Beam

Equipment used

Equipment Usage description Data types Datasets
boxcore Biology, Geology 2
navigation Navigation 3
pistoncore Geology 2
bathymetry Single Beam 4



Samples collected during this field activity