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USGS CMG A-7-68-NP Metadata

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ID A-7-68-NP
Abstract United States Geological Survey,Scripps Institution of Oceanography. Chief Scientists: Harry Ladd, W.A. Newman. Geological and Geophysical data (bathymetry, echosounder, dredge) of field activity A-7-68-NP in Wake Island area, North Pacific from 09/06/1968 to 09/14/1968
Organization United States Geological Survey
Scripps Institution of Oceanography
Chief Scientist Harry Ladd
W.A. Newman
Activity Type Geological and Geophysical
Platform Alex. Agassiz
Area of Operation Wake Island area, North Pacific, North Pacific Ocean
Bounding Coordinates
19.99280
166.54070     179.98540
17.76870
Dates 09/06/1968 (JD 250) to 09/14/1968 (JD 258)
Analog Materials No analog holdings.
Crew
Harry Ladd Chief Scientist, USGS
W.A. Newman Chief Scientist, SIO
Equipment Used
bathymetry
echosounder
dredge
Purpose
Geological and faunal investigation.
Information to be Derived
Bathymetry, geologic age.
Summary
The area in which rocks of Cretaceous age are known to occur was
extended toward Wake Island during this cruise. Seismic and echo-sounder
surveying proved that one of the guyots was actually an ancient atoll with
its elevated rim now submerged more than 600 fathoms. Dredging on the atoll
showed that its rim was built primarily by rudistids of Cretaceous age.
Cretaceous corals were also obtained from the drowned atoll: some chert was
present, and most of the dredged material was heavily encrusted with
manganese oxide.
Publications
U.S. Geological Survey, 1969, Geological survey research 1969: U.S.
Geological Survey Professional Paper 650-A, p. A96.
Got Help? For A-7-68-NP, we would appreciate any information on -- analog materials, contract, days at sea, dive count, funding, information specialist, kms of navigation, national plan, NGDC Info, notes, owner, ports, project, project number, scanned materials, seismic description, station count, station description, submersible, tabulated info.
Type Webpage KMZ Arc         Metadata        
Bathymetry data bath    
Metadata data     txt  data  FAQ  xml
Navigation data nav    
Times   050.times    

A-7-68-NP location map of where navigation 

equipment operated
A-7-68-NP location map of where navigation 

equipment operated

 
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Page Last Modified: Tue Oct 29 07:41:43 PDT 2013  (chd)