P Graham Mortyn
University of South Carolina
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Marine Geology | 1997
P Graham Mortyn; Robert C. Thunell
Abstract A variety of geochemical evidence suggests that surface productivity in the California Borderlands region was 1.5–2 times higher during the last glacial relative to the Holocene. High accumulation rates of opaline silica and organic carbon suggest increased glacial productivity, while carbonate accumulation records and C org. C CO 3 ratios point toward a dominantly siliceous plankton community at that time. The observed productivity changes are attributed to a southerly migration of the North Pacific high pressure cell, which resulted in an intensification of the California Current and enhanced upwelling south of 40 °N during the last glacial.
Paleoceanography | 1996
P Graham Mortyn; Robert C. Thunell; David M. Anderson; Lowell D. Stott; Jianning Le
Supplement to: Hodell, David A; Charles, Christopher D; Curtis, Jason H; Mortyn, P Graham; Ninnemann, Ulysses S; Venz, Kathryn A (2003): Data Report: Oxygen isotope stratigraphy of ODP Leg 117 sites 1088, 1089, 1090, 1093, and 1094. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-26, doi:10.2973/odp.proc.sr.177.120.2003 | 2003
David A Hodell; Christopher D. Charles; Jason H. Curtis; P Graham Mortyn; Ulysses S Ninnemann; Kathryn A Venz
Paleoceanography | 2003
P Graham Mortyn; Christopher D. Charles
In supplement to: Hodell, DA et al. (2003): Data Report: Oxygen isotope stratigraphy of ODP Leg 117 sites 1088, 1089, 1090, 1093, and 1094. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-26, https://doi.org/10.2973/odp.proc.sr.177.120.2003 | 2003
David A Hodell; Christopher D. Charles; Jason H. Curtis; P Graham Mortyn; Ulysses S Ninnemann; Kathryn A Venz
In supplement to: Hodell, DA et al. (2003): Data Report: Oxygen isotope stratigraphy of ODP Leg 117 sites 1088, 1089, 1090, 1093, and 1094. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-26, https://doi.org/10.2973/odp.proc.sr.177.120.2003 | 2003
David A Hodell; Christopher D. Charles; Jason H. Curtis; P Graham Mortyn; Ulysses S Ninnemann; Kathryn A Venz
In supplement to: Hodell, DA et al. (2003): Data Report: Oxygen isotope stratigraphy of ODP Leg 117 sites 1088, 1089, 1090, 1093, and 1094. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-26, https://doi.org/10.2973/odp.proc.sr.177.120.2003 | 2003
David A Hodell; Christopher D. Charles; Jason H. Curtis; P Graham Mortyn; Ulysses S Ninnemann; Kathryn A Venz
In supplement to: Hodell, DA et al. (2003): Data Report: Oxygen isotope stratigraphy of ODP Leg 117 sites 1088, 1089, 1090, 1093, and 1094. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-26, https://doi.org/10.2973/odp.proc.sr.177.120.2003 | 2003
David A Hodell; Christopher D. Charles; Jason H. Curtis; P Graham Mortyn; Ulysses S Ninnemann; Kathryn A Venz
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 | 1996
P Graham Mortyn; Robert C Thunell; David M. Anderson; Lowell D. Stott; Jianning Le
In 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 | 1996
P Graham Mortyn; Robert C Thunell; David M. Anderson; Lowell D. Stott; Jianning Le
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