Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes

Autores
Hren, Michael; Brandon, Mark Thomas; Fennell, Lucas Martín; Smolen, Jonathan; Super, James
Año de publicación
2020
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Andes are part of the longest mountain range on earthand their evolution has influenced global climate,weathering, and ecosystems since the Cretaceous. Weanalyzed the distribution and δ2H and δ13C of plant-derivedorganic biomarkers, the δ2H of volcanic glass, and thedistribution of soil-derived glycerol dialkyl glyceroltetraethers from Cenozoic sediments in the Malargüe Basinof Argentina (~35°S). Organic molecular and inorganic datawere measured to reconstruct Cenozoic changes inprecipitation isotopes, temperature, moisture deficit, andecosystems on the eastern flank of the Southern CentralAndes. Two variables (precipitation isotopes andtemperature) are strongly related to the topography of anorogen through isotopic distillation of precipitation duringrainout and changes in temperature with elevation.However, molecular biomarkers also provide keyinformation about climate and aridity through time. Weshow that organic biomarker and volcanic glass δ2H datafrom the Malargüe basin record late Cenozoic reduction oforographic lifting of airmasses associated with localdowndrop of the basin. In addition, molecular data reflectlong-term shifts in moisture deficit and plant water stressthat are consistent with regional patterns of changingclimate and aridity due to late Cenozoic cooling. Soilderivedtetraether lipid records mirror the patterns observedin organic molecular and inorganic isotope data, yet recordtemperatures that are unrealistic. These data highlight thecomplexity of universally applying the soil GDGT proxy toall terrestrial systems. In total, combined organic andinorganic data highlight the importance of multi-proxyrecords to produce a coherent representation of long-termecosystem and climate change in a region impacted byevolving climatic and tectonic boundary conditions.
Fil: Hren, Michael. University of Connecticut; Estados Unidos
Fil: Brandon, Mark Thomas. University of Yale; Estados Unidos
Fil: Fennell, Lucas Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Smolen, Jonathan. University of Connecticut; Estados Unidos
Fil: Super, James. University of Yale; Estados Unidos
Goldschmidt Meeting
Estados Unidos
Geochemical Society
European Association of Geochemistry
Materia
Hydrogen
Organic
Inorganic
Paleotopography
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/187619
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/187619
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central AndesHren, MichaelBrandon, Mark ThomasFennell, Lucas MartínSmolen, JonathanSuper, JamesHydrogenOrganicInorganicPaleotopographyhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Andes are part of the longest mountain range on earthand their evolution has influenced global climate,weathering, and ecosystems since the Cretaceous. Weanalyzed the distribution and δ2H and δ13C of plant-derivedorganic biomarkers, the δ2H of volcanic glass, and thedistribution of soil-derived glycerol dialkyl glyceroltetraethers from Cenozoic sediments in the Malargüe Basinof Argentina (~35°S). Organic molecular and inorganic datawere measured to reconstruct Cenozoic changes inprecipitation isotopes, temperature, moisture deficit, andecosystems on the eastern flank of the Southern CentralAndes. Two variables (precipitation isotopes andtemperature) are strongly related to the topography of anorogen through isotopic distillation of precipitation duringrainout and changes in temperature with elevation.However, molecular biomarkers also provide keyinformation about climate and aridity through time. Weshow that organic biomarker and volcanic glass δ2H datafrom the Malargüe basin record late Cenozoic reduction oforographic lifting of airmasses associated with localdowndrop of the basin. In addition, molecular data reflectlong-term shifts in moisture deficit and plant water stressthat are consistent with regional patterns of changingclimate and aridity due to late Cenozoic cooling. Soilderivedtetraether lipid records mirror the patterns observedin organic molecular and inorganic isotope data, yet recordtemperatures that are unrealistic. These data highlight thecomplexity of universally applying the soil GDGT proxy toall terrestrial systems. In total, combined organic andinorganic data highlight the importance of multi-proxyrecords to produce a coherent representation of long-termecosystem and climate change in a region impacted byevolving climatic and tectonic boundary conditions.Fil: Hren, Michael. University of Connecticut; Estados UnidosFil: Brandon, Mark Thomas. University of Yale; Estados UnidosFil: Fennell, Lucas Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Smolen, Jonathan. University of Connecticut; Estados UnidosFil: Super, James. University of Yale; Estados UnidosGoldschmidt MeetingEstados UnidosGeochemical SocietyEuropean Association of GeochemistryGeochemical Society2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/187619Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes; Goldschmidt Meeting; Estados Unidos; 2020; 1-1CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://goldschmidt.info/2020/abstracts/abstractView?id=2020004183info:eu-repo/semantics/altIdentifier/doi/10.46427/gold2020.1073Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:06:10Zoai:ri.conicet.gov.ar:11336/187619instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:06:10.562CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes
title Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes
spellingShingle Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes
Hren, Michael
Hydrogen
Organic
Inorganic
Paleotopography
title_short Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes
title_full Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes
title_fullStr Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes
title_full_unstemmed Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes
title_sort Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes
dc.creator.none.fl_str_mv Hren, Michael
Brandon, Mark Thomas
Fennell, Lucas Martín
Smolen, Jonathan
Super, James
author Hren, Michael
author_facet Hren, Michael
Brandon, Mark Thomas
Fennell, Lucas Martín
Smolen, Jonathan
Super, James
author_role author
author2 Brandon, Mark Thomas
Fennell, Lucas Martín
Smolen, Jonathan
Super, James
author2_role author
author
author
author
dc.subject.none.fl_str_mv Hydrogen
Organic
Inorganic
Paleotopography
topic Hydrogen
Organic
Inorganic
Paleotopography
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Andes are part of the longest mountain range on earthand their evolution has influenced global climate,weathering, and ecosystems since the Cretaceous. Weanalyzed the distribution and δ2H and δ13C of plant-derivedorganic biomarkers, the δ2H of volcanic glass, and thedistribution of soil-derived glycerol dialkyl glyceroltetraethers from Cenozoic sediments in the Malargüe Basinof Argentina (~35°S). Organic molecular and inorganic datawere measured to reconstruct Cenozoic changes inprecipitation isotopes, temperature, moisture deficit, andecosystems on the eastern flank of the Southern CentralAndes. Two variables (precipitation isotopes andtemperature) are strongly related to the topography of anorogen through isotopic distillation of precipitation duringrainout and changes in temperature with elevation.However, molecular biomarkers also provide keyinformation about climate and aridity through time. Weshow that organic biomarker and volcanic glass δ2H datafrom the Malargüe basin record late Cenozoic reduction oforographic lifting of airmasses associated with localdowndrop of the basin. In addition, molecular data reflectlong-term shifts in moisture deficit and plant water stressthat are consistent with regional patterns of changingclimate and aridity due to late Cenozoic cooling. Soilderivedtetraether lipid records mirror the patterns observedin organic molecular and inorganic isotope data, yet recordtemperatures that are unrealistic. These data highlight thecomplexity of universally applying the soil GDGT proxy toall terrestrial systems. In total, combined organic andinorganic data highlight the importance of multi-proxyrecords to produce a coherent representation of long-termecosystem and climate change in a region impacted byevolving climatic and tectonic boundary conditions.
Fil: Hren, Michael. University of Connecticut; Estados Unidos
Fil: Brandon, Mark Thomas. University of Yale; Estados Unidos
Fil: Fennell, Lucas Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Smolen, Jonathan. University of Connecticut; Estados Unidos
Fil: Super, James. University of Yale; Estados Unidos
Goldschmidt Meeting
Estados Unidos
Geochemical Society
European Association of Geochemistry
description The Andes are part of the longest mountain range on earthand their evolution has influenced global climate,weathering, and ecosystems since the Cretaceous. Weanalyzed the distribution and δ2H and δ13C of plant-derivedorganic biomarkers, the δ2H of volcanic glass, and thedistribution of soil-derived glycerol dialkyl glyceroltetraethers from Cenozoic sediments in the Malargüe Basinof Argentina (~35°S). Organic molecular and inorganic datawere measured to reconstruct Cenozoic changes inprecipitation isotopes, temperature, moisture deficit, andecosystems on the eastern flank of the Southern CentralAndes. Two variables (precipitation isotopes andtemperature) are strongly related to the topography of anorogen through isotopic distillation of precipitation duringrainout and changes in temperature with elevation.However, molecular biomarkers also provide keyinformation about climate and aridity through time. Weshow that organic biomarker and volcanic glass δ2H datafrom the Malargüe basin record late Cenozoic reduction oforographic lifting of airmasses associated with localdowndrop of the basin. In addition, molecular data reflectlong-term shifts in moisture deficit and plant water stressthat are consistent with regional patterns of changingclimate and aridity due to late Cenozoic cooling. Soilderivedtetraether lipid records mirror the patterns observedin organic molecular and inorganic isotope data, yet recordtemperatures that are unrealistic. These data highlight thecomplexity of universally applying the soil GDGT proxy toall terrestrial systems. In total, combined organic andinorganic data highlight the importance of multi-proxyrecords to produce a coherent representation of long-termecosystem and climate change in a region impacted byevolving climatic and tectonic boundary conditions.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/187619
Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes; Goldschmidt Meeting; Estados Unidos; 2020; 1-1
CONICET Digital
CONICET
url http://hdl.handle.net/11336/187619
identifier_str_mv Organic molecular and inorganic isotope records of Cenozoic topography, ecosystem and climate evolution of the Southern Central Andes; Goldschmidt Meeting; Estados Unidos; 2020; 1-1
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://goldschmidt.info/2020/abstracts/abstractView?id=2020004183
info:eu-repo/semantics/altIdentifier/doi/10.46427/gold2020.1073
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Geochemical Society
publisher.none.fl_str_mv Geochemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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