(Table 1) Radiocarbon ages of ODP Hole 146-893A

DOI

High-resolution planktonic foraminiferal census data from Santa Barbara Basin (Ocean Drilling Program hole 893A) demonstrate major assemblage switches between 25 and 60 ka that were associated with Dansgaard-Oeschger cycles. Stadials dominated by Neogloboquadrina pachyderma (sinistral), and Globigerinoides glutinata suggest a strong subpolar California Current influence, while interstadials marked by abundant N. pachyderma (dextral) and G. bulloides indicate a relative increase in subtropical countercurrent influence. Modern analog technique and transfer function (F-20RSC) temperature reconstructions support d18O evidence of large rapid (70 years or less) sea surface temperature shifts (3° to 5°C) between stadials and interstadials. Changes in the vertical temperature gradient and water column structure (thermocline depth) are recorded by planktonic faunal oscillations suggest bimodal stability in the organization of North Pacific surface ocean circulation. Santa Barbara Basin surface water demonstrates the rapid response of the California Current System to reorganization of North Pacific atmospheric circulation during rapid climate change.

Sample data were taken from Ingram and Kennet (1995).

Supplement to: Hendy, Ingrid L; Kennett, James P (2000): Dansgaard-Oeschger Cycles and the California Current System: Planktonic foraminiferal response to rapid climate change in Santa Barbara Basin, Ocean Drilling Program Hole 893A. Paleoceanography, 15(1), 30-42

Identifier
DOI https://doi.org/10.1594/PANGAEA.855397
Related Identifier https://doi.org/10.1029/1999PA000413
Related Identifier https://doi.org/10.2973/odp.proc.sr.146-2.278.1995
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.855397
Provenance
Creator Hendy, Ingrid L ORCID logo; Kennett, James P
Publisher PANGAEA
Publication Year 2000
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 52 data points
Discipline Earth System Research
Spatial Coverage (-120.036 LON, 34.288 LAT); North Pacific Ocean
Temporal Coverage Begin 1992-11-20T10:30:00Z
Temporal Coverage End 1992-11-20T23:40:00Z