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
We study shifts in phytoplankton proxies linked to terrigenous inputs and teleconnections in a core from Soledad Basin, Gulf of Ulloa, NW Mexico, spanning the end of the deglaciation and the Holocene. We used biogenic opal (% opal), organic carbon (% total organic carbon [TOC]), and inorganic carbon...
- Autores:
-
Álvarez‐Covelli, Catalina
Kasper‐Zubillaga, Juan José
Lozano‐García, María del Socorro
Arellano-Torres, Elsa
- Tipo de recurso:
- Fecha de publicación:
- 2019
- Institución:
- Universidad El Bosque
- Repositorio:
- Repositorio U. El Bosque
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.unbosque.edu.co:20.500.12495/1752
- Palabra clave:
- Fitoplancton
Carbono
Fondo oceánico
- Rights
- License
- Acceso cerrado
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|
dc.title.spa.fl_str_mv |
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 |
title |
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 |
spellingShingle |
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 Fitoplancton Carbono Fondo oceánico |
title_short |
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 |
title_full |
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 |
title_fullStr |
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 |
title_full_unstemmed |
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 |
title_sort |
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 |
dc.creator.fl_str_mv |
Álvarez‐Covelli, Catalina Kasper‐Zubillaga, Juan José Lozano‐García, María del Socorro Arellano-Torres, Elsa |
dc.contributor.author.none.fl_str_mv |
Álvarez‐Covelli, Catalina Kasper‐Zubillaga, Juan José Lozano‐García, María del Socorro Arellano-Torres, Elsa |
dc.subject.decs.spa.fl_str_mv |
Fitoplancton Carbono Fondo oceánico |
topic |
Fitoplancton Carbono Fondo oceánico |
description |
We study shifts in phytoplankton proxies linked to terrigenous inputs and teleconnections in a core from Soledad Basin, Gulf of Ulloa, NW Mexico, spanning the end of the deglaciation and the Holocene. We used biogenic opal (% opal), organic carbon (% total 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 and identified authigenic gypsum. Based on opal/TOC and CaCO3/TOC ratios, we found periodic changes of ~0.5, 1.1–1.8 ka cycle in phytoplankton proxies exporting siliceous and carbonate skeletal debris to the sediments. An increase in carbonate organisms occurred during 14–8.7 ka, corresponding to reduced El Niño–Southern Oscillation (ENSO)‐like variability, in parallel to the northward displacement of the Intertropical Convergence Zone (ITCZ) and an overall negative phase of the Pacific Decadal Oscillation (PDO). An increase in siliceous organisms occurred between 6 and 3 ka, coincident with strong ENSO‐like conditions, southern migration of ITCZ, and less intense but more frequent positive PDO‐hydrological variability. Grain size analyses show significant amounts of fine fraction (dust <6.6 μm) present during the early‐ to mid‐Holocene in agreement to extreme weather on land, with episodes of eolian and fluvial transport to the sea. The ENSO‐like variations influenced biological C‐export producers on a scale of 1.1–1.8 ka, but 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. |
publishDate |
2019 |
dc.date.accessioned.none.fl_str_mv |
2019-09-25T12:58:59Z |
dc.date.available.none.fl_str_mv |
2019-09-25T12:58:59Z |
dc.date.issued.none.fl_str_mv |
2019 |
dc.type.spa.fl_str_mv |
article |
dc.type.coarversion.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.local.spa.fl_str_mv |
artículo |
dc.identifier.issn.none.fl_str_mv |
2572-4525 |
dc.identifier.uri.none.fl_str_mv |
http://hdl.handle.net/20.500.12495/1752 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1029/2018PA003479 |
dc.identifier.instname.spa.fl_str_mv |
instname:Universidad El Bosque |
dc.identifier.reponame.spa.fl_str_mv |
reponame:Repositorio Institucional Universidad El Bosque |
dc.identifier.repourl.none.fl_str_mv |
repourl:https://repositorio.unbosque.edu.co |
identifier_str_mv |
2572-4525 instname:Universidad El Bosque reponame:Repositorio Institucional Universidad El Bosque repourl:https://repositorio.unbosque.edu.co |
url |
http://hdl.handle.net/20.500.12495/1752 https://doi.org/10.1029/2018PA003479 |
dc.language.iso.none.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.spa.fl_str_mv |
Paleoceanography and Paleoclimatology, 2572-4525, Vol. 34, Nro, 1, 2019, 35-53 |
dc.relation.uri.none.fl_str_mv |
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018PA003479 |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.local.spa.fl_str_mv |
Acceso cerrado |
dc.rights.accessrights.none.fl_str_mv |
http://purl.org/coar/access_right/c_abf12 |
dc.rights.creativecommons.none.fl_str_mv |
2019 |
rights_invalid_str_mv |
Acceso cerrado http://purl.org/coar/access_right/c_abf12 2019 http://purl.org/coar/access_right/c_abf2 |
dc.format.mimetype.none.fl_str_mv |
application/pdf |
dc.publisher.spa.fl_str_mv |
John Wiley and Sons |
dc.publisher.journal.spa.fl_str_mv |
Paleoceanography and Paleoclimatology |
institution |
Universidad El Bosque |
bitstream.url.fl_str_mv |
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Álvarez‐Covelli, CatalinaKasper‐Zubillaga, Juan JoséLozano‐García, María del SocorroArellano-Torres, Elsa2019-09-25T12:58:59Z2019-09-25T12:58:59Z20192572-4525http://hdl.handle.net/20.500.12495/1752https://doi.org/10.1029/2018PA003479instname:Universidad El Bosquereponame:Repositorio Institucional Universidad El Bosquerepourl:https://repositorio.unbosque.edu.coapplication/pdfengJohn Wiley and SonsPaleoceanography and PaleoclimatologyPaleoceanography and Paleoclimatology, 2572-4525, Vol. 34, Nro, 1, 2019, 35-53https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018PA003479A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scalesarticleartículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501FitoplanctonCarbonoFondo oceánicoWe study shifts in phytoplankton proxies linked to terrigenous inputs and teleconnections in a core from Soledad Basin, Gulf of Ulloa, NW Mexico, spanning the end of the deglaciation and the Holocene. We used biogenic opal (% opal), organic carbon (% total 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 and identified authigenic gypsum. Based on opal/TOC and CaCO3/TOC ratios, we found periodic changes of ~0.5, 1.1–1.8 ka cycle in phytoplankton proxies exporting siliceous and carbonate skeletal debris to the sediments. An increase in carbonate organisms occurred during 14–8.7 ka, corresponding to reduced El Niño–Southern Oscillation (ENSO)‐like variability, in parallel to the northward displacement of the Intertropical Convergence Zone (ITCZ) and an overall negative phase of the Pacific Decadal Oscillation (PDO). An increase in siliceous organisms occurred between 6 and 3 ka, coincident with strong ENSO‐like conditions, southern migration of ITCZ, and less intense but more frequent positive PDO‐hydrological variability. Grain size analyses show significant amounts of fine fraction (dust <6.6 μm) present during the early‐ to mid‐Holocene in agreement to extreme weather on land, with episodes of eolian and fluvial transport to the sea. The ENSO‐like variations influenced biological C‐export producers on a scale of 1.1–1.8 ka, but 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.Acceso cerradohttp://purl.org/coar/access_right/c_abf122019http://purl.org/coar/access_right/c_abf2ORIGINALArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdfArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdfapplication/pdf4527290https://repositorio.unbosque.edu.co/bitstreams/554988c7-ec50-4fa3-a596-8f0731a299be/downloadc3399088fdcc26313bf7c8b8a5004f33MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.unbosque.edu.co/bitstreams/1af4bfcf-2995-46cd-b6d6-877024468081/download8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdf.jpgArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdf.jpgIM Thumbnailimage/jpeg11873https://repositorio.unbosque.edu.co/bitstreams/eeb8415c-e8e3-4ffd-bde9-1a6744397507/downloadbbe9caed84d1c95eb4fdf4552f56433dMD53TEXTArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdf.txtArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdf.txtExtracted texttext/plain101315https://repositorio.unbosque.edu.co/bitstreams/904d9431-8d96-4817-b954-aaa7579a370b/download45d7da0a5ef6a0abddff5e1bf217f0bdMD5420.500.12495/1752oai:repositorio.unbosque.edu.co:20.500.12495/17522024-02-06 23:01:01.526restrictedhttps://repositorio.unbosque.edu.coRepositorio Institucional Universidad El Bosquebibliotecas@biteca.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 |