Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina

An extensive, well-preserved, Late Jurassic (c. 150 Ma) geothermal system at San Agustín farm in the Deseado Massif, Patagonia, Argentina, is described. This deposit, along with others previously known from the same region, partially fills a considerable gap between Cenozoic and scattered Palaeozoic...

Descripción completa

Detalles Bibliográficos
Autores: Guido, Diego Martin, Channing, Alan, Campbell, Kathleen A., Zamuner, Alba Berta
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/198354
Acceso en línea:http://hdl.handle.net/11336/198354
Access Level:acceso abierto
Palabra clave:SILICEOUS SINTER
SAN AGUSTÍN
JURASSIC
PATAGONIA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
id AR_1a87b4e0f65d63c1675a00a35db993e3
oai_identifier_str oai:ri.conicet.gov.ar:11336/198354
network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, ArgentinaGuido, Diego MartinChanning, AlanCampbell, Kathleen A.Zamuner, Alba BertaSILICEOUS SINTERSAN AGUSTÍNJURASSICPATAGONIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1An extensive, well-preserved, Late Jurassic (c. 150 Ma) geothermal system at San Agustín farm in the Deseado Massif, Patagonia, Argentina, is described. This deposit, along with others previously known from the same region, partially fills a considerable gap between Cenozoic and scattered Palaeozoic hot spring localities reported worldwide. The San Agustín deposit is novel because it represents a large (1.4 km2) and nearly complete geothermal landscape. Siliceous hot spring facies, both subaerial and subaqueous, are exposed side by side in their original spatial and geological context, set amongst intrusive rhyolite domes and fluviolacustrine sediments. The Jurassic hot springs have preserved an entire local ecosystem containing microbes, arthropods, gastropods and plants exhibiting Lagerstätten-style preservation. Plant preservation, in particular, ranges from decayed litter, to seedling sprouts, and to dense stands in life orientation with intact anatomy. The San Agustín deposit shares some ecological, taphonomic and sedimentological characteristics with modern hot springs. As it formed in a pre-angiosperm world, it is akin to the famous hot spring-related Devonian Rhynie cherts of Scotland. It differs in having excellent exposure, and thus will probably contribute to a better understanding of biosignal preservation in extreme environments in the geological record.Fil: Guido, Diego Martin. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Recursos Minerales. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto de Recursos Minerales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Channing, Alan. Cardiff University; Reino UnidoFil: Campbell, Kathleen A.. University of Auckland; Nueva ZelandaFil: Zamuner, Alba Berta. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaGeological Society Publications House2010-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/198354Guido, Diego Martin; Channing, Alan; Campbell, Kathleen A.; Zamuner, Alba Berta; Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina; Geological Society Publications House; Journal of the Geological Society; 167; 1; 1-2010; 11-200016-7649CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/jgs/article/167/1/11/372663/Jurassic-geothermal-landscapes-and-fossilinfo:eu-repo/semantics/altIdentifier/doi/10.1144/0016-76492009-109info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:02:13Zoai:ri.conicet.gov.ar:11336/198354instacron: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:34982024-05-08 14:02:14.191CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina
title Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina
spellingShingle Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina
Guido, Diego Martin
SILICEOUS SINTER
SAN AGUSTÍN
JURASSIC
PATAGONIA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina
title_full Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina
title_fullStr Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina
title_full_unstemmed Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina
title_sort Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina
dc.creator.none.fl_str_mv Guido, Diego Martin
Channing, Alan
Campbell, Kathleen A.
Zamuner, Alba Berta
author Guido, Diego Martin
author_facet Guido, Diego Martin
Channing, Alan
Campbell, Kathleen A.
Zamuner, Alba Berta
author_role author
author2 Channing, Alan
Campbell, Kathleen A.
Zamuner, Alba Berta
author2_role author
author
author
dc.subject.none.fl_str_mv SILICEOUS SINTER
SAN AGUSTÍN
JURASSIC
PATAGONIA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic SILICEOUS SINTER
SAN AGUSTÍN
JURASSIC
PATAGONIA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description An extensive, well-preserved, Late Jurassic (c. 150 Ma) geothermal system at San Agustín farm in the Deseado Massif, Patagonia, Argentina, is described. This deposit, along with others previously known from the same region, partially fills a considerable gap between Cenozoic and scattered Palaeozoic hot spring localities reported worldwide. The San Agustín deposit is novel because it represents a large (1.4 km2) and nearly complete geothermal landscape. Siliceous hot spring facies, both subaerial and subaqueous, are exposed side by side in their original spatial and geological context, set amongst intrusive rhyolite domes and fluviolacustrine sediments. The Jurassic hot springs have preserved an entire local ecosystem containing microbes, arthropods, gastropods and plants exhibiting Lagerstätten-style preservation. Plant preservation, in particular, ranges from decayed litter, to seedling sprouts, and to dense stands in life orientation with intact anatomy. The San Agustín deposit shares some ecological, taphonomic and sedimentological characteristics with modern hot springs. As it formed in a pre-angiosperm world, it is akin to the famous hot spring-related Devonian Rhynie cherts of Scotland. It differs in having excellent exposure, and thus will probably contribute to a better understanding of biosignal preservation in extreme environments in the geological record.
publishDate 2010
dc.date.none.fl_str_mv 2010-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/198354
Guido, Diego Martin; Channing, Alan; Campbell, Kathleen A.; Zamuner, Alba Berta; Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina; Geological Society Publications House; Journal of the Geological Society; 167; 1; 1-2010; 11-20
0016-7649
CONICET Digital
CONICET
url http://hdl.handle.net/11336/198354
identifier_str_mv Guido, Diego Martin; Channing, Alan; Campbell, Kathleen A.; Zamuner, Alba Berta; Jurassic geothermal landscapes and fossil ecosystems at San Agustín, Patagonia, Argentina; Geological Society Publications House; Journal of the Geological Society; 167; 1; 1-2010; 11-20
0016-7649
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://pubs.geoscienceworld.org/jgs/article/167/1/11/372663/Jurassic-geothermal-landscapes-and-fossil
info:eu-repo/semantics/altIdentifier/doi/10.1144/0016-76492009-109
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.publisher.none.fl_str_mv Geological Society Publications House
publisher.none.fl_str_mv Geological Society Publications House
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
_version_ 1799195745571569664
score 15.812429

Similares en LA Referencia