Author: Boaz Luz
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
Late Pleistocene Paleo-oceanography of the Tropical Southeast Pacific
Oceanography of the Tropical Pacific
Author: Unni Havem Rowell
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 88
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 88
Book Description
Investigation of Late Quaternary Paleoceanography and Paleoclimatology
Author: R. M. Cline
Publisher: Geological Society of America
ISBN: 0813711452
Category : Science
Languages : en
Pages : 636
Book Description
Publisher: Geological Society of America
ISBN: 0813711452
Category : Science
Languages : en
Pages : 636
Book Description
Late Quaternary Changes in the Oceanography of the Eastern Tropical Pacific
Author: Chiye R. Wenkam
Publisher:
ISBN:
Category : Oceanography
Languages : en
Pages : 143
Book Description
Factor analysis of radiolarian species from the tops of 34 gravity cores in the area extending from 5°N to 45°N, 95°W to 155°W, yields five factor assemblages which are related to the present surface circulation: 1) a Pacific Equatorial Water assemblage; 2) a California Current assemblage; 3) a North Equatorial Current assemblage; 4) a Tropical Surface Water assemblage; 5) an oxygen minimum layer assemblage. A sixth assemblage appears to be the result of dissolution. The variation of these factors through the late Pleistocene is based on the analysis of samples from two cores. Transfer functions which relate core top assemblages to temperature at the sea surface and at 130 m depth were used to determine paleotemperatures. Stratigraphic control was provided by oxygen isotope analysis of planktonic foraminifera from one core, Synchronous levels in the other core were determined from biostratigraphic correlation of the variations in the abundance of three species of radiolaria between cores. A reconstruction of the paleoceanography based on the results of the above analyses indicates that during the last glacial maximum (18,000 yrs BP): 1) sea surface temperatures were slightly lower than today; 2) the areal extent of warm Pacific Equatorial water and Tropical Surface water was diminished; 3) the California Current, North Equatorial Current, and the Equatorial Current were stronger than at present; 4) there was an increase in the thermal gradient in the thermocline and/or an increase in the depth of the mixed layer; 5) air and sea surface circulation patterns were constricted and experienced minimal north-south oscillation.
Publisher:
ISBN:
Category : Oceanography
Languages : en
Pages : 143
Book Description
Factor analysis of radiolarian species from the tops of 34 gravity cores in the area extending from 5°N to 45°N, 95°W to 155°W, yields five factor assemblages which are related to the present surface circulation: 1) a Pacific Equatorial Water assemblage; 2) a California Current assemblage; 3) a North Equatorial Current assemblage; 4) a Tropical Surface Water assemblage; 5) an oxygen minimum layer assemblage. A sixth assemblage appears to be the result of dissolution. The variation of these factors through the late Pleistocene is based on the analysis of samples from two cores. Transfer functions which relate core top assemblages to temperature at the sea surface and at 130 m depth were used to determine paleotemperatures. Stratigraphic control was provided by oxygen isotope analysis of planktonic foraminifera from one core, Synchronous levels in the other core were determined from biostratigraphic correlation of the variations in the abundance of three species of radiolaria between cores. A reconstruction of the paleoceanography based on the results of the above analyses indicates that during the last glacial maximum (18,000 yrs BP): 1) sea surface temperatures were slightly lower than today; 2) the areal extent of warm Pacific Equatorial water and Tropical Surface water was diminished; 3) the California Current, North Equatorial Current, and the Equatorial Current were stronger than at present; 4) there was an increase in the thermal gradient in the thermocline and/or an increase in the depth of the mixed layer; 5) air and sea surface circulation patterns were constricted and experienced minimal north-south oscillation.
Quantitative Radiolarian-based Paleo-oceanography in Late Pleistocene Subarctic Pacific Settlements
Author: Harvey Maurice Sachs
Publisher:
ISBN:
Category :
Languages : en
Pages : 416
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 416
Book Description
Late Pleistocene Marine Paleoecology and Zoogeography in Central California
Author: Warren O. Addicott
Publisher:
ISBN:
Category : Mollusks, Fossil
Languages : en
Pages : 44
Book Description
Invertebrate assemblages analogous to the Aleutain molluscan province indicate a former cool-temperate marine climate.
Publisher:
ISBN:
Category : Mollusks, Fossil
Languages : en
Pages : 44
Book Description
Invertebrate assemblages analogous to the Aleutain molluscan province indicate a former cool-temperate marine climate.
Catalogue of Accessioned Publications
Author: World Data Center A--Oceanography
Publisher:
ISBN:
Category : Oceanography
Languages : en
Pages : 516
Book Description
Publisher:
ISBN:
Category : Oceanography
Languages : en
Pages : 516
Book Description
Memoir
Contribution from the Scripps Institution of Oceanography
Author: Scripps Institution of Oceanography
Publisher:
ISBN:
Category : Marine biology
Languages : en
Pages : 960
Book Description
Reprints from various publications.
Publisher:
ISBN:
Category : Marine biology
Languages : en
Pages : 960
Book Description
Reprints from various publications.
International Decade of Ocean Exploration
Author: United States. Environmental Data Service
Publisher:
ISBN:
Category : Marine resources
Languages : en
Pages : 444
Book Description
Publisher:
ISBN:
Category : Marine resources
Languages : en
Pages : 444
Book Description