Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest
The Grutas del Palacio is the sector where the Asencio Formation (Upper Cretaceous), which crops out discontinuously in SW Uruguay, is best displayed. The Asencio Formation consists of red terrigenous sediments modified by pedogenesis-lateritic processes. It is constituted from bottom to top by the...
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2024
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| On-line přístup: | https://hdl.handle.net/20.500.12008/51024 |
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| _version_ | 1868890244889182208 |
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| author | Colombo, Ferran |
| author2 | Gallastegui, Gloria Goso Aguilar, César Veroslavsky, Gerardo Mesa, Valeria Picchi, Daniel |
| author2_role | author author author author author |
| author_browse | Colombo, Ferran Gallastegui, Gloria Goso Aguilar, César Mesa, Valeria Picchi, Daniel Veroslavsky, Gerardo |
| author_facet | Colombo, Ferran Gallastegui, Gloria Goso Aguilar, César Veroslavsky, Gerardo Mesa, Valeria Picchi, Daniel |
| author_role | author |
| collection | COLIBRI |
| dc.contributor.none.fl_str_mv | Colombo Ferran, Universidad de Barcelona. Gallastegui Gloria, Universidad de Barcelona. Goso Aguilar César, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas. Veroslavsky Gerardo, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas. Mesa Valeria, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas. Picchi Daniel, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas. |
| dc.coverage.none.fl_str_mv | Uruguay |
| dc.creator.none.fl_str_mv | Colombo, Ferran Gallastegui, Gloria Goso Aguilar, César Veroslavsky, Gerardo Mesa, Valeria Picchi, Daniel |
| dc.date.none.fl_str_mv | 2024 2025-08-13T14:51:58Z 2025-08-13T14:51:58Z |
| dc.format.none.fl_str_mv | 34 h application/pdf |
| dc.identifier.none.fl_str_mv | Colombo, F, Gallastegui, G, Goso Aguilar, C [y otros autores]. "Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest". Andean Geology. [en línea] 2024, 51(2): 296-329. 34 h. DOI: 10.5027/andgeoV51n2-3688 0718-7106 https://hdl.handle.net/20.500.12008/51024 10.5027/andgeoV51n2-3688 |
| dc.language.none.fl_str_mv | en eng |
| dc.publisher.none.fl_str_mv | Servicio Nacional de Geología y Minería |
| dc.relation.none.fl_str_mv | Andean Geology, 2024, 51(2): 296-329. |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess Licencia Creative Commons Atribución (CC - By 4.0) |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.subject.none.fl_str_mv | Asencio Formation Yapeyú Member Palacio Member Flooded forest Trunk casts |
| dc.title.none.fl_str_mv | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest Grutas del Palacio y otros depósitos continentales afines del Cretácico Superior (SO Uruguay): características sedimentarias y pruebas de un antiguo bosque inundado |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | The Grutas del Palacio is the sector where the Asencio Formation (Upper Cretaceous), which crops out discontinuously in SW Uruguay, is best displayed. The Asencio Formation consists of red terrigenous sediments modified by pedogenesis-lateritic processes. It is constituted from bottom to top by the members Yapeyú (lacustrine) and Palacio (palustrine). The Palacio Member is characterized by the presence of numerous oval-like caves, <2 m high, as well as several column-like structures made up of ferruginized pisolithic aggregates. These structures are encased within sparsely laminated whitish sand-rich mudstone horizons and covered by iron-rich siliceous sandstones. Several interpretations have been proposed for the column-like structures. In this article we suggest that the Asencio Formation was accumulated primarily because of lacustrine processes, under relatively stable tectonic conditions and a warm, seasonally humid climate. The column-like structures would represent the casts of rotting tree trunks, which were later infilled by sand and iron-rich materials. The upper parts of these structures were probably affected by water erosion related to recurrent floods. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_fb08b6f946a4cfb2247a6cd2d0f89ba8 |
| identifier_str_mv | Colombo, F, Gallastegui, G, Goso Aguilar, C [y otros autores]. "Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest". Andean Geology. [en línea] 2024, 51(2): 296-329. 34 h. DOI: 10.5027/andgeoV51n2-3688 0718-7106 10.5027/andgeoV51n2-3688 |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/51024 |
| publishDate | 2024 |
| publishDateSort | 2024 |
| publisher.none.fl_str_mv | Servicio Nacional de Geología y Minería |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
| spelling | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forestGrutas del Palacio y otros depósitos continentales afines del Cretácico Superior (SO Uruguay): características sedimentarias y pruebas de un antiguo bosque inundadoColombo, FerranGallastegui, GloriaGoso Aguilar, CésarVeroslavsky, GerardoMesa, ValeriaPicchi, DanielAsencio FormationYapeyú MemberPalacio MemberFlooded forestTrunk castsThe Grutas del Palacio is the sector where the Asencio Formation (Upper Cretaceous), which crops out discontinuously in SW Uruguay, is best displayed. The Asencio Formation consists of red terrigenous sediments modified by pedogenesis-lateritic processes. It is constituted from bottom to top by the members Yapeyú (lacustrine) and Palacio (palustrine). The Palacio Member is characterized by the presence of numerous oval-like caves, <2 m high, as well as several column-like structures made up of ferruginized pisolithic aggregates. These structures are encased within sparsely laminated whitish sand-rich mudstone horizons and covered by iron-rich siliceous sandstones. Several interpretations have been proposed for the column-like structures. In this article we suggest that the Asencio Formation was accumulated primarily because of lacustrine processes, under relatively stable tectonic conditions and a warm, seasonally humid climate. The column-like structures would represent the casts of rotting tree trunks, which were later infilled by sand and iron-rich materials. The upper parts of these structures were probably affected by water erosion related to recurrent floods.Grutas del Palacio es el sector donde la Formación Asencio (Cretácico Superior), que aflora discontinuamente en el SO del Uruguay, está mejor expuesta. Esta formación consiste en sedimentos terrígenos rojizos modificados por procesos pedogenéticos-lateríticos. Está constituida de base a techo por los miembros Yapeyú (lacustre) y Palacio (palustre). El Miembro Palacio contiene numerosas cuevas ovaladas con alturas máximas de hasta 2 m, así como varias estructuras columnares conformadas por agregados pisolíticos ferruginizados. Estas estructuras están encajadas dentro de niveles de lutitas blanquecinas, ocasionalmente laminadas y ricas en arenas, y están cubiertas por areniscas silíceas ferruginosas. Se han propuesto diferentes interpretaciones para explicar estas estructuras columnares. El presente estudio sugiere que la Formación Asencio se generó mediante diversos procesos lacustres bajo condiciones tectónicas relativamente estables y condiciones climáticas cálidas y estacionalmente húmedas. Se considera que las estructuras de tipo columnar representan los moldes de troncos de árboles que después de pudrirse fueron rellenados por arenas y materiales ferruginosos. Con posterioridad, la parte superior de estas estructuras fue probablemente afectada por inundaciones recurrentes.Servicio Nacional de Geología y MineríaColombo Ferran, Universidad de Barcelona.Gallastegui Gloria, Universidad de Barcelona.Goso Aguilar César, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas.Veroslavsky Gerardo, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas.Mesa Valeria, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas.Picchi Daniel, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas.2025-08-13T14:51:58Z2025-08-13T14:51:58Z2024Artículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion34 happlication/pdfColombo, F, Gallastegui, G, Goso Aguilar, C [y otros autores]. "Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest". Andean Geology. [en línea] 2024, 51(2): 296-329. 34 h. DOI: 10.5027/andgeoV51n2-36880718-7106https://hdl.handle.net/20.500.12008/5102410.5027/andgeoV51n2-3688reponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaenengAndean Geology, 2024, 51(2): 296-329.UruguayLas obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución (CC - By 4.0)oai:colibri.udelar.edu.uy:20.500.12008/510242026-04-14T10:10:55Z |
| spellingShingle | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest Colombo, Ferran Asencio Formation Yapeyú Member Palacio Member Flooded forest Trunk casts |
| status_str | publishedVersion |
| title | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest |
| title_full | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest |
| title_fullStr | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest |
| title_full_unstemmed | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest |
| title_short | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest |
| title_sort | Grutas del Palacio and other related Upper Cretaceous continental deposits (SW Uruguay): main sedimentary features and evidence for an old flooded forest |
| topic | Asencio Formation Yapeyú Member Palacio Member Flooded forest Trunk casts |
| url | https://hdl.handle.net/20.500.12008/51024 |