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dc.contributor.author
Brea, Mariana
dc.contributor.author
Artabe, Analia Emilia Eva
dc.contributor.author
Spalletti, Luis Antonio
dc.date.available
2019-04-12T21:54:32Z
dc.date.issued
2008-12
dc.identifier.citation
Brea, Mariana; Artabe, Analia Emilia Eva; Spalletti, Luis Antonio; Ecological reconstruction of a mixed Middle Triassic forest from Argentina; Taylor & Francis Ltd; Alcheringa; 32; 4; 12-2008; 365-393
dc.identifier.issn
0311-5518
dc.identifier.uri
http://hdl.handle.net/11336/74326
dc.description.abstract
The palaeoecology of an in situ Middle Triassic forest known as the Darwin Forest, from the Paramillo Formation of Argentina, is described based on palaeobotanical, sedimentological and spatial analyses. The palaeoforest grew on an andisol soil that developed on volcaniclastic floodplain deposits. The volcanic detritus and the rhythmic amalgamation of upper flow-regime tractional deposits overlying the andisol indicate that the forest was buried rapidly by a subaerial, cool and wet pyroclastic base surge flow. The plant community was reconstructed by quantitative mapping of the fossilized stumps integrated with taxonomic and sedimentological information. The Darwin Forest had a tree density of 427-759 per ha, with an upper stratum (20-26 m) of corystosperms and a second stratum (16-20 m) of conifers. Estimated biomass is equivalent to modern dry monsoonal forest. The understorey was composed of ferns (Cladophlebis spp.). Quantitative growth-ring analysis of Araucarioxylon protoaraucana suggests that these trees were evergreen and, together with vegetation structure and sedimentary data, indicate that the forest developed under dry, subtropical, strongly seasonal conditions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Fossil Wood
dc.subject
Growth-Rings
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Middle Triassic
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Palaeoclimatology
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Palaeoecology
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Palaeoenvironments
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Southwestern Gondwana
dc.subject.classification
Ciencias Medioambientales
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Ecological reconstruction of a mixed Middle Triassic forest from Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-26T20:35:33Z
dc.journal.volume
32
dc.journal.number
4
dc.journal.pagination
365-393
dc.journal.pais
Australia
dc.description.fil
Fil: Brea, Mariana. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
dc.description.fil
Fil: Artabe, Analia Emilia Eva. División Paleobotánica, Facultad de Ciencias naturales y Museo, Universidad Nacional de La Plata; Argentina
dc.description.fil
Fil: Spalletti, Luis Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
dc.journal.title
Alcheringa
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/03115510802417760
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115510802417760


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