Physical and Chemical Data. Piquero Expedition 16 December 1968 - 16 April 1969.

• Other Authors: SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CALIF
• Format: Text
• Language: English
• Published: 1974
• Subjects: Biological Oceanography; Physical and Dynamic Oceanography; Geology; Geochemistry and Mineralogy; *OCEANOGRAPHIC DATA; *SOUTH PACIFIC OCEAN; COASTAL REGIONS; OCEAN CURRENTS; FAULTS(GEOLOGY); CONTINENTAL SHELVES; CONCENTRATION(COMPOSITION); HELIUM; SOUTH AMERICA; ANTARCTIC REGIONS; PLANKTON; CHILE; AIR GUNS; Atacama Fault; Antarctic Circumpolar Current; Chile Current; Antarctic Peninsula; Piquero expedition; Cape Horn; Antarctic; Arlington; Pacific; The Antarctic; Antarc*
• Online Access: http://www.dtic.mil/docs/citations/ADA002328; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA002328

The primary purpose of the PIQUERO Expedition was the following: (1) To obtain more data on noble gas concentrations, mainly on the excess helium component present in deep Southeast Pacific waters attributable to an influx of helium from the solid earth; (2) to conduct a sub-bottom (air gun) profiler survey of a possible extension of the Atacama Fault on the continental shelf near Taltal, Chile; (3) to study the circulation of the Chile Current between 40 degrees S and 57 degrees S and of the Antarctic Circumpolar Current in the area between Cape Horn and the Antarctic Peninsula; and (4) to study the distribution of plankton in relation to prevailing hydrographic conditions and concentrations of nutrient chemicals in coastal and oceanic waters off western South America. Sponsored by National Science Foundation, Washington, D.C., Atomic Energy Commission, Washington, D.C., and Office of Naval Research, Arlington, Va.