Field Activity 1974-002-FA

Identifier 1974-002-FA
Alternate names GSI Party 437, Bermuda Triangle
Purpose Contracted collection of CDP data by Geophysical Services, Inc. in the area of the Bermuda Triangle.
Location Bermuda Triangle, offshore Carolinas, Blake Plateau, United States, North America, North Atlantic;
Summary Purchased 3 CDP lines: BT-1, BT-4, and BT-8.
Info derived Morphology;
Comments Project = Bermuda Triangle, Bermuda Triangle
Platform
Jonsson
Itinerary
Start (port not specified) 1974-04-15
End (port not specified) 1974-04-21
Days in the field 17
Bounds
West -79.5
East -74.5
North 33.5
South 30.5

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators William P Dillon
Crew members
Information specialist(s)
Soderberg, Nancy K.
Specialist, Information
Affiliate staff A. Boudreaux, Supervisor; D. Dale, Party Manager; James Hunt, Instr. Eng.; Herbert Hixenbrugh, Instr. Eng.; W. E. Clow, Instr. Eng.; Peter Eidson, Instr. Eng. Trainee; Richard Drake, QC; David Tobins, QC; C. Grayson, Mech.; W. Kennedy, Mech.; A. Thomson, Mech.; N. Benton, Mech.; R. Olroyd, Administrator; C. Fourara, Surv. Supvsr/Operator; F. Renton, Surv. Op.; N. Smith, Surv. Op.; G. Grolz, Geonav/IMDCS Op.; R. Simmons, LORAN-C Op.; I. D. Samuel, Ship's Captain; P. Thomas, Ship's Mate

Data types and categories

Data category: Seismics, Electro-Magnetic, Sonar, Location-Elevation
Data type: Multichannel, Gravity, Magnetics, Single Beam, Navigation

Documents: Notes and log books

Name Survey Equipment Description
Water Depth Calculations Echosounder Water Depth Calculations (pdf file) Handwritten notes regarding water depth calculations for Line 1 and comparison to fathometer readings.
Cruise log (document not focused on specific equipment) Daily QC Reports (pdf file) Original handwritten daily quality control log.
Quality Control Report Multichannel seismics Quality Control Report (pdf file) Completed Quality Control Report form for Lines 1, 4 and 8 with general survey notes and specific equipment/operations notes.
Cruise log Multichannel seismics All the reports combined into a single document.
Inventory of Digital Field Tapes Multichannel seismics Field Tape Inventory (pdf file) Inventory of digital field tapes including reel number, date, tape number, lines, shotpoints, and record numbers.

Equipment used

Equipment Usage description Data types Datasets
Multichannel seismics Multichannel 14
LaCoste-Romberg gravimeter G-179 Gravity (no data reported)
Varian V-75 magnetometer Magnetics (no data reported)
Echosounder Single Beam (no data reported)
IMDCS navigation Navigation 3

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
1974-002-FA-SE-001-01 Multichannel seismics Paper record section of Lines BT-01, BT-04, BT-08, Nancy K. Soderberg
1974-002-FA-SE-001-02 Multichannel seismics DVD ROM disk of BT-1 STACK, MILLER DEMUX, BT-1CNTRCT DEMUX,BT-8 STCK,DMX, Nancy K. Soderberg
1974-002-FA-SE-001-03 Multichannel seismics Scanned seismic profiles: includes scanned tiff files from the contractor's scaled and true amplitude mylar sections. Gregory K Miller
1974-002-FA-SE-001-04 Multichannel seismics Scanned seismic profiles: includes pdf files from the tiff scaled profile and true amplitude scans. Gregory K Miller
1974-002-FA-SE-001-05 Multichannel seismics Line BT-1 Contractor DEMUX SEG-Y Data - 12 SEG-Y demux files prepared by contractor. Nancy K. Soderberg
1974-002-FA-SE-001-06 Multichannel seismics Line BT-1 - Miller DEMUX SEG-Y Data - 16 SEG-Y files prepared by Miller of USGS with disco header info file. Nancy K. Soderberg
1974-002-FA-SE-001-07 Multichannel seismics Line BT-1 - Contractor STACK SEG-Y Data - 6 SEG-Y stack files prepared by contractor. Nancy K. Soderberg
1974-002-FA-SE-001-08 Multichannel seismics Line BT-1 - Scanned Profiles - Includes 9 scanned tiff files from the contractor's scaled mylar section profiles and 9 pdf files from the tiff scaled profile scans. Nancy K. Soderberg
1974-002-FA-SE-001-10 Multichannel seismics Line BT-4 - Scanned Profiles - Includes 6 scanned tiff files from the contractor's scaled mylar section profiles and 6 pdf files from the tiff scaled profile scans. Nancy K. Soderberg
1974-002-FA-SE-001-11 Multichannel seismics Line BT-4 - Scanned Profiles - Includes 6 scanned tiff files from the contractor's true amplitude mylar section profiles and 6 pdf files from the tiff true amplitude profile scans. Nancy K. Soderberg
1974-002-FA-SE-001-12 Multichannel seismics Line BT-8 - Contractor DEMUX SEG-Y Data - 6 SEG-Y demux files prepared by contractor. Nancy K. Soderberg
1974-002-FA-SE-001-13 Multichannel seismics Line BT-8 - Contractor STACK SEG-Y Data - 2 SEG-Y stack files prepared by contractor. Nancy K. Soderberg
1974-002-FA-SE-001-14 Multichannel seismics Line BT-8 - Scanned Profiles - Includes 6 scanned tiff files from the contractor's scaled mylar section profiles and 6 pdf files from the scanned scaled mylar section profiles. Nancy K. Soderberg
1974-002-FA-SE-001-15 Multichannel seismics Line BT-8 - Scanned Profiles - Includes 6 scanned tiff files from the contractor's true amplitude mylar section profiles and 6 pdf files from the tiff true amplitude profile scans. Nancy K. Soderberg
1974-002-FA-LN-001 IMDCS navigation CDP navigation trackline plot for field activity 74002 Nancy K. Soderberg
1974-002-FA-LN-002 IMDCS navigation BT-1 (text file) Line BT-1 shotpoint navigation file. Nancy K. Soderberg
1974-002-FA-LN-003 IMDCS navigation BT-8 (text file) Line BT-8 shotpoint navigation file. Nancy K. Soderberg

Publications

Samples collected during this field activity