SEDIS - Publications
Hendy, I. L. (2010): The paleoclimatic response of the southern Californian margin to the rapid climate change of the last 60 ka; a regional overview
ODP 167 1014
ODP 167 1017
ODP 146 893
Hendy, I. L.
University of Michigan, Department of Geological Sciences, Ann Arbor, MI, United States
The paleoclimatic response of the southern Californian margin to the rapid climate change of the last 60 ka; a regional overview
In: Starratt, Scott W. (editor), 23rd Pacific climate workshop (PACLIM)
Elsevier, Oxford, United Kingdom
High-resolution planktonic foraminiferal census and stable isotope data from a core transect (ODP Site 1017, 893 and 1014) demonstrate remarkable similarities along the Southern California Margin during the last glacial (60-10 ka BP). Modern analog technique and delta (super 18) O derived sea surface temperatures (SST) demonstrate SST shifts were regionally expressed supporting the hypothesis that the relative strength of local surface ocean currents affected the advection of subpolar and subtropical water into the region. Divergent alkenone SST records suggest the flux of planktonic organisms shifted seasonally during the last glacial in response to changing environmental conditions. When considered as seasonal SST reconstructions, summer/oligotrophic surface ocean conditions appear to have a muted response to orbital and millennial-scale climate change compared to the surface ocean during high nutrient/winter conditions. Abstract Copyright (2010) Elsevier, B.V.
Quaternary geology; alkenones; assemblages; California; Cenozoic; climate change; continental margin; cores; currents; East Pacific; ecology; factor analysis; Foraminifera; Invertebrata; isotope ratios; isotopes; ketones; Leg 146; Leg 167; marine sediments; microfossils; North Pacific; Northeast Pacific; O-18/O-16; ocean currents; Ocean Drilling Program; ODP Site 1014; ODP Site 1017; ODP Site 893; organic compounds; oxygen; Pacific Ocean; paleo-oceanography; paleoclimatology; paleoenvironment; Pleistocene; Protista; Quaternary; Santa Barbara Basin; sea-surface temperature; sediments; Southern California; stable isotopes; statistical analysis; United States; upper Pleistocene;
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