GLORIA — GEOMAR Library Ocean Research Information Access

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Holocene sea-surface reconstructions for the Californian margin (2001)

Herbert, Timothy D ; Schuffert, Jeffrey D ; Andreasen, Dyke ; [weitere]

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In: Supplement to: Herbert, Timothy D; Schuffert, Jeffrey D; Andreasen, Dyke; Heusser, Linda E; Lyle, Mitchell W; Mix, Alan C; Ravelo, Ana Christina; Stott, Lowell D; Herguera, Juan-Carlos (2001): Collapse of the California current during glacial maxima linked to climate change on land. Science, 293(5527), 71-76, https://doi.org/10.1126/science.1059209

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Publikationsdatum: 2024-01-09

Beschreibung: Time series of alkenone unsaturation indices gathered along the California margin reveal large (4° to 8°C) glacial-interglacial changes in sea surface temperature (SST) over the past 550,000 years. Interglacial times with SSTs equal to or exceeding that of the Holocene contain peak abundances in the pollen of redwood, the distinctive component of the temperate rainforest of the northwest coast of California. In the region now dominated by the California Current, SSTs warmed 10,000 to 15,000 years in advance of deglaciation at each of the past five glacial maxima. SSTs did not rise in advance of deglaciation south of the modern California Current front. Glacial warming along the California margin therefore is a regional signal of the weakening of the California Current during times when large ice sheets reorganized wind systems over the North Pacific. Both the timing and magnitude of the SST estimates suggest that the Devils Hole (Nevada) calcite record represents regional but not global paleotemperatures, and hence does not pose a fundamental challenge to the orbital ("Milankovitch") theory of the Ice Ages.

Schlagwort(e): 167-1012B; DRILL; Drilling/drill rig; GC; Gravity corer; Joides Resolution; Leg167; LPAZ; LPAZ-021PG; North Pacific Ocean; Ocean Drilling Program; ODP; Spencer F. Baird

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Format: application/zip, 2 datasets

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(Appendix B) Opal and terrigenous material content in ODP Leg 138 sites (1995)

Farrell, John W ; Raffi, Isabella ; Janecek, Thomas R ; [weitere]

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Publikationsdatum: 2024-01-09

Schlagwort(e): 138-844B; 138-845A; 138-846B; 138-847; 138-848B; 138-849B; 138-850; 138-851B; 138-852B; 138-853B; 138-854B; Accumulation rate, calcium carbonate; Accumulation rate, opal; Accumulation rate, terrigenous; AGE; Calcium carbonate; COMPCORE; Composite Core; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Elevation of event; Event label; Hole; Joides Resolution; Latitude of event; Leg138; Longitude of event; North Pacific Ocean; Ocean Drilling Program; ODP; Opal, biogenic silica; Reference/source; Sedimentation rate; South Pacific Ocean; Terrigenous

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Format: text/tab-separated-values, 23484 data points

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(Table 4) Carbon composition, bulk densities, accumulation rates and ages of ODP Site 167-1020 sediments (2000)

Lyle, Mitchell W ; Mix, Alan C ; Ravelo, Ana Christina ; [weitere]

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Publikationsdatum: 2024-01-09

Schlagwort(e): 167-1020; Accumulation rate, calcium carbonate; Accumulation rate, mass; Accumulation rate, total organic carbon; Age, comment; Age model; Age model, optional; Calcium carbonate; Calculated; Carbon, organic, total; COMPCORE; Composite Core; Coulometry; Density, dry bulk; Density, wet bulk; Depth, composite; Depth, composite revised; DEPTH, sediment/rock; Differential Offset; DSDP/ODP/IODP sample designation; Estimated; Gamma-ray attenuation porosity evaluator (GRAPE); Intercore correlation; Joides Resolution; Leg167; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label; Sedimentation rate

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Format: text/tab-separated-values, 14929 data points

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(Table 8) Carbon composition, bulk densities, accumulation rates and ages of ODP Site 167-1018 sediments (2000)

Lyle, Mitchell W ; Mix, Alan C ; Ravelo, Ana Christina ; [weitere]

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Publikationsdatum: 2024-01-09

Schlagwort(e): 167-1018; Accumulation rate, calcium carbonate; Accumulation rate, mass; Accumulation rate, total organic carbon; Age model; Calcium carbonate; Calculated; Carbon, organic, total; COMPCORE; Composite Core; Coulometry; Density, dry bulk; Density, wet bulk; Depth, composite; Depth, composite revised; Depth, reference; DEPTH, sediment/rock; Differential Offset; DSDP/ODP/IODP sample designation; Estimated; Gamma-ray attenuation porosity evaluator (GRAPE); Intercore correlation; Joides Resolution; Leg167; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label; Sedimentation rate

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Format: text/tab-separated-values, 6188 data points

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(Appendix C) Nannofossil assemblage characterization of ODP Leg 138 sites (1995)

Farrell, John W ; Raffi, Isabella ; Janecek, Thomas R ; [weitere]

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Publikationsdatum: 2024-01-09

Schlagwort(e): 138-844; 138-845; 138-846; 138-847; 138-848; 138-849; 138-850; 138-851; 138-852; 138-853; 138-854; AGE; COMPCORE; Composite Core; DEPTH, sediment/rock; Elevation of event; Etching index; Event label; Hole; Joides Resolution; Latitude of event; Leg138; Longitude of event; Nannofossil abundance; Nannofossils preservation; North Pacific Ocean; Ocean Drilling Program; ODP; Overgrowth index; South Pacific Ocean

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Format: text/tab-separated-values, 8590 data points

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