Other ID: IPOD 80
Status: Completed
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Funding Program(s):
Principal Investigator(s): Claude (Wylie) Poag
Affiliate Investigator(s): Pierre C. de Graciansky - Ecole Nationale Superieure des Mines
Information Specialist(s):
Data Type(s): Sampling: Geology
Scientific Purpose/Goals: DSDP Leg 80 investigated the structural evolution and depositional history of the Goban Spur and adjacent Porcupine Abyssal Plain. Structural relationships and fossil assemblages indicate the rifting of the Armorican margin created submarine relief of as much as 2,000 m. Sea-floor spreading began no later than early Aptian, accompanied by rapid crustal subsidence, and regional downwarping and tilting. Subsidence was greatest near ocean/continent juncture, diminishing near the thicker continental crust. Subsidence has been minimal since Eocene, influenced by oceanic circulation and water chemistry.
Vehicle(s):
Start Port/Location: Brest, France
End Port/Location: Southampton, England
Start Date: 1981-05-30
End Date: 1981-07-22
Equipment Used: Well drilling
Information to be Derived: Samples and chemical analysis; Grain size analysis; Morphology;
Summary of Activity and Data Gathered: Wells: 4 (#548, 548A, 549, 549A, 550, 550A, 550B, 551); Cores: 306, recovered 296 (2397.5 m cored, 1493 m recovered).
Staff: Claude (Wylie) Poag
Affiliate Staff:
Pierre C. de Graciansky - co-Chief Scientist; Leslie Reynolds - sedimentology/paleo assistant
Notes: Original Center People field contained: C. Wylie Poag - co-Chief Scientist; Leslie Reynolds - sedimentology/paleo assistant.
Project = Deep Sea Drilling Project (DSDP), Deep Sea Drilling Project (DSDP)
Location:
Goban Spur, Pendragon Escarpment, Porcupine Abyssal Plain, Irish Continental Shelf, Northeast Atlantic;
Boundaries | |||
---|---|---|---|
North: 49.08817 | South: 48.51517 | West: -12.4985 | East: -11.836 |
Platform(s):
Glomar Challenger |
Survey Equipment | Survey Info | Data Type(s) | Data Collected |
---|---|---|---|
Well drilling | --- | Geology |