Paleoenvironmental Reconstruction of the Destacamento Río Salado Member, Canal de Las Escobas Formation (Middle Holocene), Northeastern Buenos Aires, Argentina: Sedimentological and Paleontological Evidence

Pereyra, Cristian A.; Laprida, Cecilia; Carvalho, Carlos Neto de; Pommarés, Nicole Nadín; Corbat, Cecilia; Monsalvo, Sebastián; Luengo, Mariel Samanta; Paredes, Gisel; Cardoso, Rocío; Bertero, Martina; Sesto, Facundo; Fucks, Enrique

doi:10.1007/978-3-030-66161-8_13

Cited by 5 publications

(2 citation statements)

References 58 publications

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“…En la provincia de Buenos Aires, el hallazgo de Ophiomorpha nodosa ocurre en depósitos del Pleistoceno tardío y Holoceno (Frenguelli, 1928;Mouzo et al, 1989;Pereyra et al, 2018;Pereyra y Carvalho, 2020), siendo particularmente abundantes en capas correlacionables al "Belgranense". En el caso de la localidad de Pehuén Có, como fuera mencionado más arriba, existen depósitos conformados mayormente por galerías de Ophiomorpha nodosa (Mouzo et al, 1989;Vega et al, 1990;Pereyra y Carvalho, 2020).…”

Section: Ophiomorpha Lundgren 1891unclassified

Vertebrados e invertebrados fósiles en la Costa Atlántica de la Provincia de Buenos Aires, Argentina. Edad y paleoambientes

Agnolín,

Bogan,

Lucero

et al. 2024

AGL

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Los vertebrados fósiles de las líneas costeras marinas a lo largo de la costa atlántica de la provincia de Buenos Aires, en el este de Argentina, son bien conocidos desde el siglo XIX. A pesar de ser frecuentes a lo largo de la costa del área de Cabo San Antonio, la descripción de los vertebrados e invertebrados fósiles encontrados a lo largo de la costa permanece casi sin documentar y su descripción ha sido mayormente anecdótica. El objetivo de la presente contribución es el de describir una gran colección de fósiles encontrados a lo largo de la playa de varias localidades en el área del cabo de San Antonio. Los fósiles incluyen una mezcla de animales terrestres y marinos que probablemente pertenecen a la Formación Pozo 10 (aproximadamente 120.000 años antes del presente), correlacionable con el evento transgresivo marino conocido como "Belgranense". Varios fósiles sugieren aguas cálidas, reminiscentes de las que ocurren hoy en día en el norte de Brasil. Los fósiles aquí reportados son muy similares a los de los conjuntos de fósiles costeros encontrados en el sur de Brasil, Uruguay y el sur de la provincia de Buenos Aires, lo que sugiere algún tipo de continuidad faunística y ambiental a lo largo de las costas del sur durante el Pleistoceno medio.

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Section: Ophiomorpha Lundgren 1891unclassified

Vertebrados e invertebrados fósiles en la Costa Atlántica de la Provincia de Buenos Aires, Argentina. Edad y paleoambientes

Agnolín,

Bogan,

Lucero

et al. 2024

AGL

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“…Nevertheless, several studies have been carried out on the Argentinean coast, to unravel the coastal evolution of the Río de la Plata estuary located between Argentina and Uruguay, that has linked this coastal evolution with sea-level changes associated to global climatic conditions since the early Holocene (Cavallotto and Violante, 2005). Therefore, it is an area of interest for geomorphological, environmental and palaeoenvironmental studies (Ballesteros-Prada et al, 2021;Braga et al, 2014;Carol et al, 2008Carol et al, , 2015Fucks et al, 2005;Laprida and Bertels-Psotka, 2003;Mourelle et al, 2015;Pereyra et al, 2021;Perez et al, 2012;Samus et al, 2020;Vilanova and Prieto, 2012). Samborombón bay, located in the external sector of the Argentine estuary coast (Figure 1), is a coastal wetland that integrates several protected areas.…”

Section: Introductionmentioning

confidence: 99%

Long-term shoreline evolution (Late-Holocene – 2018) of the Channel 15 coast (Samborombón bay, NE – Buenos Aires province, Argentina)

et al. 2022

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Here we present an investigation with the aim of reconstructing the shoreline evolution and geomorphological changes in the central zone of Samborombón bay (Channel 15, Buenos Aires province, Argentina) during the period 2700 cal yr BP to recent times. Palynological, geomorphological and historical imagery and proxy-data analyses were combined to reconstruct the shoreline evolution and paleo-environmental changes. Palynological material (pollen and non-pollen palynomorphs -NPP-) was recovered from a continuous 117 cm long sedimentary profile extracted from an outcrop at the northern margin of Channel 15. Relict landforms, including paleo- shorelines, were reconstructed by applying enhancing filters to a Spot 6 image from 2015. Historical shorelines were identified in high-definition images (aerial and satellite imagery) between 1968 and 2018, but also by using the marsh vegetation edge as a shoreline proxy. Shoreline change was quantified using the Net Shoreline Movement and Weighted Linear Regression algorithms in ArcMap 10.1. Results based on the palynological analysis for the period 2700–2740 BP, show the passage from subtidal-intertidal to supratidal environment with influence of brackish to fresh-waters, where paleo-shorelines imprint was recognized developing over a tidal plain that was grading to marshes. Results based on aerial and satellite imagery for the period 1968–2018 show shoreline retrocession only immediately at the north of the channel mouth, while the rest of the coast prograded toward the estuary. These processes indicate that new marshes – and, therefore, wetlands – are constantly developing at the edge of Samborombón bay.

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New bivalve burrows from the mid-Holocene of northeastern Buenos Aires Province (Argentina): ichnotaxonomy and ethology

2023

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Paleoenvironmental Reconstruction of the Destacamento Río Salado Member, Canal de Las Escobas Formation (Middle Holocene), Northeastern Buenos Aires, Argentina: Sedimentological and Paleontological Evidence

Cited by 5 publications

References 58 publications

Vertebrados e invertebrados fósiles en la Costa Atlántica de la Provincia de Buenos Aires, Argentina. Edad y paleoambientes

Vertebrados e invertebrados fósiles en la Costa Atlántica de la Provincia de Buenos Aires, Argentina. Edad y paleoambientes

Long-term shoreline evolution (Late-Holocene – 2018) of the Channel 15 coast (Samborombón bay, NE – Buenos Aires province, Argentina)

New bivalve burrows from the mid-Holocene of northeastern Buenos Aires Province (Argentina): ichnotaxonomy and ethology

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