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dc.contributor.author
Krapovickas, Verónica
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dc.contributor.other
Vizcaíno, Sergio Fabián
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dc.contributor.other
Kay, Richard F.
dc.contributor.other
Bargo, María Susana
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dc.date.available
2020-06-02T19:47:40Z
dc.date.issued
2012
dc.identifier.citation
Krapovickas, Verónica; Ichnology of distal overbank deposits of the Santa Cruz Formation (late Early Miocene) : paleohydrologic and paleoclimatic significance; Cambridge University Press; 2012; 91-103
dc.identifier.isbn
9780511667381
dc.identifier.uri
http://hdl.handle.net/11336/106545
dc.description.abstract
This chapter deals with the trace fossils, also called ichnofossils, preserved in the lower Estancia La Costa Member of the Santa Cruz Formation (late Early Miocene) along the Atlantic coast, between the Río Gallegos and Río Coyle, Santa Cruz Province, Argentina. The succession is mostly composed of fluvial deposits. Extensive overbank areas record trace fossils in a variety of deposits such as floodplain water bodies and paleosols that developed under variable climatic conditions. From bottom to top, it records a general trend of paleosol development from humid to drier climatic conditions, with waterlogged areas developed in the middle portion of the succession. Floodplain water bodies record Taenidium barretti and Palaeophycus tubularis which correspond to a “pre-desiccation suite” of the Scoyenia ichnofacies that developed in soft substrates. Also, root traces are preserved when the time between depositional events is long enough to allow colonization by plants but not so much as to obliterate animal traces. Integrated ichnology and sedimentology suggests that paleosols that record abundant cf. Capayanichnus vinchinensis, fine and haloed root traces, and the less common occurrence of Taenidium barretti and Planolites beverleyensis were episodically waterlogged and are considered moderately drained. Other paleosols that record abundant ferric root traces suggest that they were moderately well-drained and developed under more humid climatic conditions. Similar moderately well-drained paleosols record abundant calcareous rhizoconcretions and a dwelling burrow attributed to a mammal. A third type of paleosol contains cells of solitary digging bees (Celliforma isp.) and ferric root traces, and is interpreted as being moderately well-drained and developed under drier climatic conditions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Overbank
dc.subject
trace fossils
dc.subject
Celliforma
dc.subject.classification
Paleontología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Ichnology of distal overbank deposits of the Santa Cruz Formation (late Early Miocene) : paleohydrologic and paleoclimatic significance
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/bookPart
dc.type
info:ar-repo/semantics/parte de libro
dc.date.updated
2020-04-24T19:02:33Z
dc.journal.pagination
91-103
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Cambridge
dc.description.fil
Fil: Krapovickas, Verónica. 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.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/books/early-miocene-paleobiology-in-patagonia/ichnology-of-distal-overbank-deposits-of-the-santa-cruz-formation-late-early-miocene-paleohydrologic-and-paleoclimatic-significance/6158FC9F3233AEE82272C2C1A97FF67A
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/CBO9780511667381.007
dc.conicet.paginas
370
dc.source.titulo
Early Miocene Paleobiology in Patagonia : High-Latitude Paleocommunities of the Santa Cruz Formation
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