| Identifier | 1976-030-FA | ||||||||
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| Alternate names | FAY 020 | ||||||||
| Purpose | Primary objectives were to look for geophysical evidence for the continuation of fracture zones from the Mesozoic sea-floor spreading anomalies into the continental margin, investigate the source of lineated magnetic anomalies in the Jurassic Quiet Zone, and obtain additional seismic data on the continental rise and slope. | ||||||||
| Location | Mid-Atlantic Continental Margin, North Atlantic Continental Margin, United States, North America, North Atlantic; | ||||||||
| Summary | FAYs depature from Norfolk was delayed for 2 days while Hurricane Belle passed just off the coast. We finally departed at 0800 on August 10th with good weather and calm seas. Airgun, magnetometer, minisparker and 3.5 kHz were deployed at 1900Z near the edge of the continental shelf. The 3.5 kHz proved almost worthless in deep water, so after a few hours the system was turned off and the recorder used as a spare for the airgun system. The other systems ran smoothly for the entire cruise with only brief shutdowns of the airgun system to fix the guns and of the minisparker for regular maintenance. Heading into port on August 24th, we pulled the airgun and magnetometer at the 50 fathom contour but left the minisparker out as we crossed part of Nantucket Shoals. The only major problem was the high noise level on the Geometric gradiometer. Scatter in field readings (+/-2 gammas) made small gradients in the quiet zone impossible to see. The bottles were examined several times and the depressors adjusted to no avail. It appeared the ship has a rather large permanent magnetic field. Problems with LORAN-C reception were eliminated by replacing the corroded terminal box. Gravity: 3950 km; Airgun: 3700 km; Magnetics: 3700 km; Minisparker: 3700 km; 3.5 kHz: 60 km; Sidescan sonar: 0. | ||||||||
| Info derived | Morphology; | ||||||||
| Comments | Original Center People field contained: Kim Klitgord - Ch. Sci., Perry Parks - nav./grav. engineer, Frank Jennings - seismic engineer, Gerard McCarthy - mech. tech., Rob Pexton - mech. tech., Phil Shea - mech. tech., David Egelson - nav. watch, Claire Reimers - nav. watch, Scott Heald - nav. watch, Lin Morse - seismic watch, Chris Schoen - seismic watch, Stan Locker - seismic watch, Kevin King - seismic watch. | ||||||||
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| Organization |
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
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| Principal investigators | Kim D. Klitgord | ||||||||||||
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| Affiliate staff | Gerard McCarthy - mech. tech., Rob Pexton - mech. tech., Claire Reimers - nav. watch, Scott Heald - nav. watch, Lin Morse - seismic watch, Chris Schoen - seismic watch, Kevin King - seismic watch; Paul Bereznak - Western rep.; Hans Schouten - seismic watch, WHOI |
| Data category: | Electro-Magnetic, Location-Elevation, Seismics, Sonar |
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| Data type: | Gravity, Navigation, Air Gun / Water Gun, Boomer, Sparker, Single Beam |
| Name | Description |
|---|---|
| Cruise report | Chief Scientist's cruise summary of ship movement, personnel, and equipment and data acquisition notes. Includes trackmap. Information for field activities 1976-030-FA and 1976-033-FA. |
| Equipment | Usage description | Data types | Datasets |
|---|---|---|---|
| Gravity meter (wh) | Gravity | 1 | |
| Seismic Engineering streamer | Air Gun / Water Gun, Boomer, Sparker | 3 | |
| Air gun | Air Gun / Water Gun | (no data reported) | |
| Western Geophysical Integrated Navigation System | Navigation | 7 | |
| Echosounder | Single Beam | 1 |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| 1976-030-FA-GP-001 | Gravity meter (wh) | Digital tape(s) of NV1-10, NV11-16, GR, MG-FINAL, NV,GR,BT-FINAL, GR-FINAL, NV,BT-FINAL, NV-INS, NV-INS-FINAL, | Nancy K. Soderberg |
| 1976-030-FA-SE-001 | Seismic Engineering streamer | Collection of paper record displays of seismic data( AIR) for lines | Nancy K. Soderberg |
| 1976-030-FA-SE-002 | Seismic Engineering streamer | microfilm of REPLAYS ADDED FEB 79FOR LINES 1-9, 4-9, 1-10 | Nancy K. Soderberg |
| 1976-030-FA-SE-003 | Seismic Engineering streamer | analog tape of seismic data | Nancy K. Soderberg |
| 1976-030-FA-LN-001-01 | Western Geophysical Integrated Navigation System | Trackline Map for FAY 020 and 021 (pdf file) Composite trackline map for cruises FAY 020 and 021 with dates, hourly fixes, and line numbers. | Nancy K. Soderberg |
| 1976-030-FA-LN-001-02 | Western Geophysical Integrated Navigation System | Trackline Map 1 of 5 (pdf file) Trackline map for Aug 14-15, 1976 with dates and hourly fixes. | Nancy K. Soderberg |
| 1976-030-FA-LN-001-03 | Western Geophysical Integrated Navigation System | Trackline Map 2 of 5 (pdf file) Trackline map for Aug 11-12, 1976 with dates and hourly fixes. | Nancy K. Soderberg |
| 1976-030-FA-LN-001-04 | Western Geophysical Integrated Navigation System | Trackline Map 3 of 5 (pdf file) Trackline for map Aug 12-16, 1976 with dates and hourly fixes. | Nancy K. Soderberg |
| 1976-030-FA-LN-001-05 | Western Geophysical Integrated Navigation System | Trackline Map 4 of 5 (pdf file) Trackline map for Aug 16-22, 1976 with dates and hourly fixes. | Nancy K. Soderberg |
| 1976-030-FA-LN-001-06 | Western Geophysical Integrated Navigation System | Trackline Map 5 of 5 (pdf file) Trackline map for Aug 23-24, 1976 with dates and hourly fixes. | Nancy K. Soderberg |
| 1976-030-FA-LN-002-01 | Western Geophysical Integrated Navigation System | Navigation files for various 1975-1976 R/V Fay cruises as published in USGS OFR 97-512. | Nancy K. Soderberg |
| 1976-030-FA-BA-001 | Echosounder | Digital tape(s) of NV1-10, NV11-16, GR, MG-FINAL, NV,GR,BT-FINAL, GR-FINAL, NV,BT-FINAL, NV-INS, NV-INS-FINAL, | Nancy K. Soderberg |
