Decoding depositional and diagenetic conditions of the mid-Cenozoic Puesto del Museo Formation, southern Golfo San Jorge Basin, Patagonia, Argentina

Gómez-Peral, Lucía E.; Raigemborn, María Sol; Richiano, Sebastián; Arrouy, María Julia; Odino-Barreto, A. Lorena; Pérez, Leandro Martín; Sial, Alcídes N.; Ferreyra, Camila

doi:10.1016/j.jsames.2019.102356

Cited by 5 publications

(3 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a worldwide context, the Piedra Amarilla surface has been identified as a significant marker for the transition from the break‐up of Rodinia to the formation of Southwestern Gondwana (Gómez‐Peral et al, 2023), while the Pre‐Morro Azul surface is thought to represent the time boundary between a passive continental margin on Rodinia continent and the onset of the convergence that led to the assembly of Southern Gondwana (Santos et al, 2022), meaning similar tectonic contexts.…”

Section: Discussionmentioning

confidence: 99%

“…The closest correlative surface with the Pre‐Morro Azul disconformity in South America is the Piedra Amarilla surface (Gómez‐Peral et al, 2017), describe in the Tandília belt, Argentina. Both are interpreted to have been developed in close low latitudes (Santos, Leandro, et al, 2021) and bound two periods of contrasting basin stages (Gómez‐Peral et al, 2017, 2023; Santos et al, 2022; Santos, Leandro, et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…In a paleogeographic worldwide context, the emergence of karst relief over Neoproterozoic carbonate shelfs appears to be related to the occurrence of global events, which may be related to climate, tectonics or sometimes both (Blake et al, 2011; Cavalcanti, 2022; Cazarin et al, 2019; Che et al, 2019; Dristas et al, 2017; Gómez‐Peral et al, 2023; Huang et al, 2011; Skotnicki et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

The formation and evolution of Al‐rich protoliths in the southern Ribeira belt, Brazil: Insights from remnants of a Precambrian paleoweathering surface

Santos,

Fedalto,

Bahniuk

et al. 2023

Earth Surf Processes Landf

View full text Add to dashboard Cite

Bauxitic clays, clayey bauxites and bauxites are residual products formed from the weathering of aluminosilicate‐rich parent rocks under wet and warm conditions. These deposits show a complex interplay between remobilisation of pre‐existing kaolinitic soils and depositional micro‐environments.In the southern Ribeira belt, Brazil, a paleoweathering surface developed on the continental shelf of the Capiru Group passive margin strata and on its basement/source rocks. This weathering cycle gave rise to a paleosol profile on the continental domain and a karstic paleotopography on the emerged carbonate shelf. The surface and karstic nets were later caped and filled with Al‐rich materials, typical of remobilised soils, bauxitic clays, clayey bauxites and pods of karst‐type bauxites.The age of the disconformity is Pre‐Brazilian/Pan‐African, implying a Neoproterozoic age for the weathering surface. In this study, we investigate the relationship among disconformities, paleosols and karst topography to better understand the stratigraphic control, chemical composition and mineralogy of the Al‐rich materials. We interpret this horizon as the remnants of a (meta‐)paleoweathering surface that can serve as a valuable key bed for stratigraphic correlation and paleogeographic reconstructions.We propose that the triggering process for the genesis of the paleosol profiles, bauxitic material and bauxite pods was a coupled mechanism between favourable climate and uplift along the northern margin of the Curitiba–Angola craton, creating a karstic topography that allowed the down‐plain transport of Al‐rich materials. In a later stage, these deposits were metamorphosed, developing a series of Al silicates in unusual paragenesis, typical of Al‐rich protoliths.The presence of these paragenesis, along with the recognition of the disconformity–paleoweathering surface pair, could be a useful tool to understand the paleoenvironmental and paleogeographic evolution of highly deformed terrains.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

The formation and evolution of Al‐rich protoliths in the southern Ribeira belt, Brazil: Insights from remnants of a Precambrian paleoweathering surface

Santos,

Fedalto,

Bahniuk

et al. 2023

Earth Surf Processes Landf

View full text Add to dashboard Cite

show abstract

Stratigraphic architecture and paleosols as basin correlation tools of the early Paleogene infill in central–south Patagonia, Golfo San Jorge Basin, Argentinean Patagonia

Raigemborn

Beilinson

2020

Journal of South American Earth Sciences

Self Cite

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

Revised chrono and lithostratigraphy for the Oligocene-Miocene Patagoniense marine deposits in Patagonia: Implications for stratigraphic cycles, paleogeography, and major drivers

Parras

Cuitiño

2021

Journal of South American Earth Sciences

View full text Add to dashboard Cite

Decoding depositional and diagenetic conditions of the mid-Cenozoic Puesto del Museo Formation, southern Golfo San Jorge Basin, Patagonia, Argentina

Cited by 5 publications

References 67 publications

The formation and evolution of Al‐rich protoliths in the southern Ribeira belt, Brazil: Insights from remnants of a Precambrian paleoweathering surface

The formation and evolution of Al‐rich protoliths in the southern Ribeira belt, Brazil: Insights from remnants of a Precambrian paleoweathering surface

Stratigraphic architecture and paleosols as basin correlation tools of the early Paleogene infill in central–south Patagonia, Golfo San Jorge Basin, Argentinean Patagonia

Revised chrono and lithostratigraphy for the Oligocene-Miocene Patagoniense marine deposits in Patagonia: Implications for stratigraphic cycles, paleogeography, and major drivers

Contact Info

Product

Resources

About