Arellano-Torres, Elsa; Álvarez-Covelli, Catalina; Kasper-Zubillaga, Juan José; Lozano-García, María del Socorro (2018): Biogenic proxies, dust particles, teleconnections, carbon export and sub-orbital scalesfrom the composite sediment core MV99 GC41/PC14 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.896898, Supplement to: Arellano-Torres, E et al. (2019): A 14-ka Record of Dust Input and Phytoplankton Regime Changes in the Subtropical NE Pacific: Oceanic and Terrestrial Processes Linked by Teleconnections at Suborbital Scales. Paleoceanography and Paleoclimatology, 34(1), 35-53, https://doi.org/10.1029/2018PA003479
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Published: 2018-12-20 • DOI registered: 2019-02-05
Abstract:
To study shifts in phytoplankton proxies linked to terrigenous inputs and teleconnections, we analyze the composite core MV99 GC41/PC14 from Soledad Basin, Gulf of Ulloa, NW Mexico. We used biogenic opal (% opal), organic carbon (% TOC) and inorganic carbon (% CaCO3) as proxies of productivity; and opal/TOC and CaCO3/TOC ratios as proxies of nutrient uptake and C-export by siliceous and carbonate organisms. We reconstructed terrestrial inputs using grain size Weibull analyses. Grain size analyses show significant amounts of fine fraction (between 0.06 - 6.6 µm) present during the early- to mid-Holocene in agreement to extreme weather on land, with episodes of aeolian and fluvial transport to the sea. The found that ENSO-like variations influence biological C-export producers on a scale of 1.1-1.8 ka, although PDO-related variability is uncertain. We suggest that Holocene drivers for phytoplankton successions are changes in insolation, ITCZ migration, California Current upwelling, nutrient inputs by advection and terrestrial sources.
Related to:
Dean, Walter E; Zheng, Yan; Ortiz, Joseph D; van Geen, Alexander (2006): Sediment Cd and Mo accumulation in the oxygen-minimum zone off western Baja California linked to global climate over the past 52 kyr. Paleoceanography, 21(4), PA4209, https://doi.org/10.1029/2005PA001239
Marchitto, Thomas M; Muscheler, Raimund; Ortiz, Joseph D; Carriquiry, José D; van Geen, Alexander (2010): Dynamical Response of the Tropical Pacific Ocean to Solar Forcing During the Early Holocene. Science, 330(6009), 1378-1381, https://doi.org/10.1126/science.1194887
van Geen, Alexander; Shipboard Scientific Party (2001): R/V Melville, Baja California coring cruise OXMZ01MV: Core descriptions and CTD/Rosette data. Technical Report, Lamont–Doherty Geological Observatory, Columbia University, New York, 2001-01
Coverage:
Latitude: 25.200000 * Longitude: -112.717000
Date/Time Start: 1999-12-02T00:00:00 * Date/Time End: 1999-12-02T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets
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Datasets listed in this publication series
- Arellano-Torres, E; Álvarez-Covelli, C; Kasper-Zubillaga, JJ et al. (2018): Opal, organic carbon, calcium carbonate, fractions of clay, silt and fine dust particles of core MV99 GC41/PC14. https://doi.org/10.1594/PANGAEA.896891
- Arellano-Torres, E; Álvarez-Covelli, C; Kasper-Zubillaga, JJ et al. (2018): Interpolated data of opal, organic carbon, calcium carbonate, opal/TOC and CaCO3/TOC of core MV99 GC41/PC14. https://doi.org/10.1594/PANGAEA.896894