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dc.contributor.author
Ghiglione, Matias
dc.contributor.author
Yagupsky, Daniel Leonardo
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Ghidella de Hurtis, Marta Elba
dc.contributor.author
Ramos, Victor Alberto
dc.date.available
2019-12-23T13:29:02Z
dc.date.issued
2008-12
dc.identifier.citation
Ghiglione, Matias; Yagupsky, Daniel Leonardo; Ghidella de Hurtis, Marta Elba; Ramos, Victor Alberto; Continental stretching preceding the opening of the Drake Passage: Evidence from Tierra del Fuego; Geological Society of America; Geology; 36; 8; 12-2008; 643-646
dc.identifier.issn
0091-7613
dc.identifier.uri
http://hdl.handle.net/11336/92727
dc.description.abstract
Age estimates for the onset of a seaway through the Drake Passage range from middle Eocene to early Miocene, complicating interpretations of the relation between ocean circulation and Cenozoic global cooling. Here we present evidence for the presence of a latest Paleocene-early Eocene extensional basin (i.e., lateral rift) in Tierra del Fuego. An accurately dated postrift unconformity indicates that extensional faulting ended in the studied area ca. 49 Ma, in concurrence with a previously reported eightfold increase in South America-Antarctica separation rate, and the proposed onset of oceanic basins in the incipient Drake Passage. The coincidence of these facts indicates progressive strain concentration on the zone of future crustal separation (i.e., Drake Passage) after abandonment of lateral rifts ca. 49 Ma. Although the described extensional depocenters did not allow the exchange of water between the Pacific and Atlantic Oceans, they represent a direct indication of continental lithospheric stretching preceding the recently proposed Eocene opening of embryonic basins in the West Scotia Sea.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Geological Society of America
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AIRBORNE MAGNETIC DATA
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CONTINENTAL STRETCHING
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SCOTIA SEA
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TIERRA DEL FUEGO
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Geología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Continental stretching preceding the opening of the Drake Passage: Evidence from Tierra del Fuego
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-10T19:32:25Z
dc.journal.volume
36
dc.journal.number
8
dc.journal.pagination
643-646
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Boulder
dc.description.fil
Fil: Ghiglione, Matias. 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
dc.description.fil
Fil: Yagupsky, Daniel Leonardo. 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
dc.description.fil
Fil: Ghidella, Marta. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.description.fil
Fil: Ramos, Victor Alberto. 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
dc.journal.title
Geology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1130/G24857A.1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/gsa/geology/article-abstract/36/8/643/29819/Continental-stretching-preceding-the-opening-of?redirectedFrom=fulltext
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