National Oceanic and
Atmospheric Administration
United States Department of Commerce


 

FY 1974

Nazca Plate Program of the International Decade of Ocean Exploration—OCEANOGRAPHER Cruise-RP-2-OC-73

Erickson, B.H.

NOAA Tech. Report ERL 323-PMEL 21, NTIS: COM-75-40911/6, 78 pp (1974)


The NOAA Ship OCEANOGRAPHER sailed to the Southeast Pacific in the spring of 1973 as part of the International Decade of Ocean Exploration Nazca Plate Program. Measurements of the gravity and magnetic field were made, seismic refraction and reflection operations conducted, and sea floor sediments sampled along the East Pacific Rise and across the Nazca Plate to the continental margin of South America. Detailed surveys were conducted on measurements made while at Easter Island. The operations are described and profiles of bathymetry and of magnetic and free-air gravity anomalies along more than 30,000 nautical miles of trackline are presented.




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