Mortyn, P Graham; Thunell, Robert C; Anderson, David M; Stott, Lowell D; Le, Jianning (1996): Planktic foraminiferal abundance and stable oxygen isotope ratios of sediment cores from the Southern California Borderlands [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.729958, Supplement to: Mortyn, PG et al. (1996): Sea surface temperature changes in the Southern California Borderlands during the last glacial-interglacial cycle. Paleoceanography, 11(4), 415-430, https://doi.org/10.1029/96PA01236
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Abstract:
A variety of evidence suggests that average sea surface temperatures (SSTs) during the last glacial maximum in the California Borderlands region were significantly colder than during the Holocene. Planktonic foraminiferal delta18O evidence and average SST estimates derived by the modern analog technique indicate that temperatures were 6°-10°C cooler during the last glacial relative to the present. The glacial plankton assemblage is dominated by the planktonic foraminifer Neogloboquadrina pachyderma (sinistral coiling) and the coccolith Coccolithus pelagicus, both of which are currently restricted to subpolar regions of the North Pacific. The glacial-interglacial average SST change determined in this study is considerably larger than the 2°C change estimated by Climate: Long-Range Investigation, Mapping, and Prediction (CLIMAP) [1981]. We propose that a strengthened California Current flow was associated with the advance of subpolar surface waters into the Borderlands region during the last glacial.
Coverage:
Median Latitude: 32.343704 * Median Longitude: -118.972963 * South-bound Latitude: 31.468333 * West-bound Longitude: -119.856667 * North-bound Latitude: 33.011667 * East-bound Longitude: -118.116667
Event(s):
AHF-11343 * Latitude: 32.800000 * Longitude: -119.856667 * Elevation: -1171.0 m * Recovery: 7.86 m * Location: Tanner Basin * Method/Device: Piston corer (PC)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets
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Datasets listed in this publication series
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 3) Age determinations on sediment core AHF-11343. https://doi.org/10.1594/PANGAEA.388566
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 2) Stable oxygen isotope ratios og Globigerina bulloides from sediment core AHF-11343. https://doi.org/10.1594/PANGAEA.399703
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 5) Realtive abundance of planktonic foraminifera in sediment core AHF-11343. https://doi.org/10.1594/PANGAEA.52735
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 3) Age determinations on sediment core AHF-16830. https://doi.org/10.1594/PANGAEA.388567
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 2) Stable oxygen isotope ratios of Globigerina bulloides from sediment core AHF-16830. https://doi.org/10.1594/PANGAEA.399704
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 3) Age determinations on sediment core AHF-16832. https://doi.org/10.1594/PANGAEA.388568
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 2) Stable oxygen isotope ratios of Globigerina bulloides from sediment core AHF-16832. https://doi.org/10.1594/PANGAEA.399705
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 3) Age determinations on sediment core AHF-28181. https://doi.org/10.1594/PANGAEA.388569
- Mortyn, PG; Thunell, RC; Anderson, DM et al. (1996): (Table 2) Stable oxygen isotope ratios of Globigerina bulloides from sediment core AHF-28181. https://doi.org/10.1594/PANGAEA.399706