Articles | Volume 17, issue 5
https://doi.org/10.5194/os-17-1213-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-17-1213-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Sep 2021
Research article |
| 15 Sep 2021
Control of oceanic circulation on sediment distribution in the southwestern Atlantic margin (23 to 55° S)
Michel Michaelovitch de Mahiques
CORRESPONDING AUTHOR
Oceanographic Institute of the University of São Paulo, 05508-120, São Paulo, Brazil
Institute of Energy and Environment of the University of São Paulo, 05508-010, São Paulo, Brazil
Roberto Violante
Servicio de Hidrografia Naval, C1270ABV, Buenos Aires, Argentina
Paula Franco-Fraguas
Facultad de Ciencias, Universidad de La Republica, 11400 Montevideo, Uruguay
Leticia Burone
Facultad de Ciencias, Universidad de La Republica, 11400 Montevideo, Uruguay
Cesar Barbedo Rocha
Department of Marine Sciences, University of Connecticut, Groton, CT 06340, USA
Leonardo Ortega
Departamento de Biología Pesquera, Dirección Nacional de Recursos Acuáticos, 11200 Montevideo, Uruguay
Rosangela Felicio dos Santos
Oceanographic Institute of the University of São Paulo, 05508-120, São Paulo, Brazil
Bianca Sung Mi Kim
Oceanographic Institute of the University of São Paulo, 05508-120, São Paulo, Brazil
Rubens Cesar Lopes Figueira
Oceanographic Institute of the University of São Paulo, 05508-120, São Paulo, Brazil
Marcia Caruso Bícego
Oceanographic Institute of the University of São Paulo, 05508-120, São Paulo, Brazil
Related authors
Michel Michaelovitch de Mahiques, Javier Alcántara-Carrió, Francisco José Lobo, Uri Schattner, Rosangela Felício dos Santos, Samara Cazzoli y Goya, Raissa Basti Ramos, José Gustavo Natorf de Abreu, Luiz Antonio Pereira de Souza, Rubens Cesar Lopes Figueira, and Marcia Caruso Bícego
Solid Earth Discuss., https://doi.org/10.5194/se-2018-140, https://doi.org/10.5194/se-2018-140, 2019
Publication in SE not foreseen
Short summary
Short summary
This paper is a contribution to the knowledge of the geological processes on the SW Atlantic. We tried to integrate data from different time-scales, such as the geological evolution (millions of years) to the hydrodynamic processes (days to years). The results allowed us to recognize the importance of the geological inheritance to the present morphology of submerged areas.
Michel Michaelovitch de Mahiques, Till Jens Jörg Hanebuth, Renata Hanae Nagai, Marcia Caruso Bícego, Rubens Cesar Lopes Figueira, Silvia Helena Mello Sousa, Leticia Burone, Paula Franco-Fraguas, Satie Taniguchi, Alexandre Barbosa Salaroli, Gilberto Pereira Dias, Denise Menezes Prates, and Maria Eugenia Fernandes Freitas
Ocean Sci., 13, 209–222, https://doi.org/10.5194/os-13-209-2017, https://doi.org/10.5194/os-13-209-2017, 2017
Short summary
Short summary
In this paper we used sediment samples from the shelf and upper/middle slope off south-eastern Brazil in order to recognise the inorganic and organic signatures of the main current systems acting in the area. It was possible to identify the extension of the contribution of terrigenous sediments from the adjacent continent as well as to recognise the different geochemical signatures related to the Brazil Current, Intermediate Western Boundary Current and Deep Western Boundary Current.
Amanda Gerotto, Hongrui Zhang, Renata Hanae Nagai, Heather M. Stoll, Rubens César Lopes Figueira, Chuanlian Liu, and Iván Hernández-Almeida
Biogeosciences, 20, 1725–1739, https://doi.org/10.5194/bg-20-1725-2023, https://doi.org/10.5194/bg-20-1725-2023, 2023
Short summary
Short summary
Based on the analysis of the response of coccolithophores’ morphological attributes in a laboratory dissolution experiment and surface sediment samples from the South China Sea, we proposed that the thickness shape (ks) factor of fossil coccoliths together with the normalized ks variation, which is the ratio of the standard deviation of ks (σ) over the mean ks (σ/ks), is a robust and novel proxy to reconstruct past changes in deep ocean carbon chemistry.
Michel Michaelovitch de Mahiques, Javier Alcántara-Carrió, Francisco José Lobo, Uri Schattner, Rosangela Felício dos Santos, Samara Cazzoli y Goya, Raissa Basti Ramos, José Gustavo Natorf de Abreu, Luiz Antonio Pereira de Souza, Rubens Cesar Lopes Figueira, and Marcia Caruso Bícego
Solid Earth Discuss., https://doi.org/10.5194/se-2018-140, https://doi.org/10.5194/se-2018-140, 2019
Publication in SE not foreseen
Short summary
Short summary
This paper is a contribution to the knowledge of the geological processes on the SW Atlantic. We tried to integrate data from different time-scales, such as the geological evolution (millions of years) to the hydrodynamic processes (days to years). The results allowed us to recognize the importance of the geological inheritance to the present morphology of submerged areas.
Roger D. Flood, Roberto A. Violante, Thomas Gorgas, Ernesto Schwarz, Jens Grützner, Gabriele Uenzelmann-Neben, F. Javier Hernández-Molina, Jennifer Biddle, Guillaume St-Onge, and APVCM workshop participants
Sci. Dril., 22, 49–61, https://doi.org/10.5194/sd-22-49-2017, https://doi.org/10.5194/sd-22-49-2017, 2017
Michel Michaelovitch de Mahiques, Till Jens Jörg Hanebuth, Renata Hanae Nagai, Marcia Caruso Bícego, Rubens Cesar Lopes Figueira, Silvia Helena Mello Sousa, Leticia Burone, Paula Franco-Fraguas, Satie Taniguchi, Alexandre Barbosa Salaroli, Gilberto Pereira Dias, Denise Menezes Prates, and Maria Eugenia Fernandes Freitas
Ocean Sci., 13, 209–222, https://doi.org/10.5194/os-13-209-2017, https://doi.org/10.5194/os-13-209-2017, 2017
Short summary
Short summary
In this paper we used sediment samples from the shelf and upper/middle slope off south-eastern Brazil in order to recognise the inorganic and organic signatures of the main current systems acting in the area. It was possible to identify the extension of the contribution of terrigenous sediments from the adjacent continent as well as to recognise the different geochemical signatures related to the Brazil Current, Intermediate Western Boundary Current and Deep Western Boundary Current.
Cited articles
Baptista, M. S. and Conti, L. A.:
The Staircase Structure of the Southern Brazilian Continental Shelf,
Mathematical Problems in Engineering,
2009, 1–17, https://doi.org/10.1155/2009/624861, 2009.
Barreto, C. J. S., Lafon, J. M., de Lima, E. F., and Sommer, C. A.:
Geochemical and Sr–Nd–Pb isotopic insight into the low-Ti basalts from southern Paraná Igneous Province, Brazil: the role of crustal contamination,
Int. Geol. Rev.,
58, 1324–1349, https://doi.org/10.1080/00206814.2016.1147988, 2016.
Basile, I., Grousset, F. E., Revel, M., Petit, J. R., Biscaye, P. E., and Barkov, N. I.:
Patagonian origin of glacial dust deposited in East Antarctica (Vostok and Dome C), during glacial stages 2, 4 and 6,
Earth Planet. Sc. Lett.,
146, 573–589, 1997.
Bassetto, M., Alkmim, F. F., Szatmari, P., and Mohriak, W. U.:
The oceanic segment of the southern Brazilian margin: Morpho-structural domains and their tectonic significance,
in: Atlantic Rifts and Continental Margins,
edited by: Mohriak, W. and Taiwani, M.,
Geophysical Monograph Series,
American Geophysical Union, 235–259, 2000.
Bayon, G., Toucanne, S., Skonieczny, C., André, L., Bermell, S., Cheron, S., Dennielou, B., Etoubleau, J., Freslon, N., Gauchery, T., Germain, Y., Jorry, S. J., Ménot, G., Monin, L., Ponzevera, E., Rouget, M. L., Tachikawa, K., and Barrat, J. A.:
Rare earth elements and neodymium isotopes in world river sediments revisited,
Geochim. Cosmochim. Ac.,
170, 17–38, https://doi.org/10.1016/j.gca.2015.08.001, 2015.
Benthien, A. and Müller, P. J.:
Anomalously low alkenone temperatures caused by lateral particle and sediment transport in the Malvinas Current region, western Argentine Basin,
Deep-Sea Res. Pt. I,
47, 2369–2393, https://doi.org/10.1016/s0967-0637(00)00030-3, 2000.
Beny, F., Bout-Roumazeilles, V., Davies, G. R., Waelbroeck, C., Bory, A., Tribovillard, N., Delattre, M., and Abraham, R.:
Radiogenic isotopic and clay mineralogical signatures of terrigenous particles as water-mass tracers: New insights into South Atlantic deep circulation during the last termination,
Quaternary Sci. Rev.,
228, 106089, https://doi.org/10.1016/j.quascirev.2019.106089, 2020.
Berden, G., Charo, M., Möller, O. O., and Piola, A. R.:
Circulation and Hydrography in the Western South Atlantic Shelf and Export to the Deep Adjacent Ocean: 30∘ S to 40∘ S,
J. Geophys. Res.-Oceans,
125, e2020JC016500, https://doi.org/10.1029/2020jc016500, 2020.
Berkowsky, F.:
Variaciones mineralógicas en sedimentos del Río de la Plata,
VII Congreso Geológico Argentino, Neuquén, 9–15 April 2021, Asociación Geológica Argentina, 649–658, 1978.
Berkowsky, F.:
Arenas del Río de la Plata: una excepción a la relación entre composición de areniscas y la tectónica de placas,
Primera Reunión Argentina de Sedimentología, La Plata, Argentina, 6–10 October 1986, Asociación Argentina de Sedimentología, 263–266, 1986.
Biló, T. C., da Silveira, I. C. A., Belo, W. C., de Castro, B. M., and Piola, A. R.:
Methods for estimating the velocities of the Brazil Current in the pre-salt reservoir area off southeast Brazil (23∘ S–26∘ S),
Ocean Dynam.,
64, 1431–1446, https://doi.org/10.1007/s10236-014-0761-2, 2014.
Blanchet, C. L.: A database of marine and terrestrial radiogenic Nd and Sr isotopes for tracing earth-surface processes, Earth Syst. Sci. Data, 11, 741–759, https://doi.org/10.5194/essd-11-741-2019, 2019.
Boebel, O., Schmid, C., and Zenk, W.:
Flow and recirculation of Antarctic Intermediate Water across the Rio Grande Rise,
J. Geophys. Res.-Oceans,
102, 20967–20986, https://doi.org/10.1029/97jc00977, 1997.
Boebel, O., Davis, R. E., Ollitrault, M., Peterson, R. G., Richardson, P. L., Schmid, C., and Zenk, W.:
The intermediate depth circulation of the western South Atlantic,
Geophys. Res. Lett.,
26, 3329–3332, https://doi.org/10.1029/1999gl002355, 1999a.
Boebel, O., Schmid, C., and Zenk, W.:
Kinematic elements of Antarctic Intermediate Water in the western South Atlantic,
Deep-Sea Res. Pt. II,
46, 355–392, https://doi.org/10.1016/s0967-0645(98)00104-0, 1999b.
Bozzano, G., Violante, R. A., and Cerredo, M. E.:
Middle slope contourite deposits and associated sedimentary facies off NE Argentina,
Geo-Mar. Lett.,
31, 495–507, https://doi.org/10.1007/s00367-011-0239-x, 2011.
Bozzano, G., Martín, J., Spoltore, D. V., and Violante, R. A.:
Los cañones submarinos del margen continental Argentino: una síntesis sobre su génesis y dinámica sedimentaria,
Latin American Journal of Sedimentology and Basin Analysis,
24, 85–101, 2017.
Bozzano, G., Cerredo, M. E., Remesal, M., Steinmann, L., Hanebuth, T. J. J., Schwenk, T., Baqués, M., Hebbeln, D., Spoltore, D., Silvestri, O., Acevedo, R. D., Spiess, V., Violante, R. A., and Kasten, S.:
Dropstones in the Mar del Plata Canyon Area (SW Atlantic): Evidence for Provenance, Transport, Distribution, and Oceanographic Implications,
Geochem. Geophy. Geosy.,
22, e2020GC009333, https://doi.org/10.1029/2020gc009333, 2021.
Burone, L., Franco-Fraguas, P., de Mahiques, M. M., and Ortega, L.:
Geomorphological and Sedimentological Characterization of the Uruguayan Continental Margin: A Review and State of Art,
Journal of Sedimentary Environments,
3, 253–264, https://doi.org/10.12957/jse.2018.39150, 2018.
Campos, E. J. D., Mulkherjee, S., Piola, A. R., and de Carvalho, F. M. S.:
A note on a mineralogical analysis of the sediments associated with the Plata River and Patos Lagoon outflows,
Cont. Shelf Res.,
28, 1687–1691, https://doi.org/10.1016/j.csr.2008.03.014, 2008.
Carranza, A., Recio, A. M., Kitahara, M., Scarabino, F., Ortega, L., López, G., Franco-Fraguas, P., De Mello, C., Acosta, J., and Fontan, A.:
Deep-water coral reefs from the Uruguayan outer shelf and slope,
Marine Biodivers.,
42, 411–414, https://doi.org/10.1007/s12526-012-0115-6, 2012.
Castro, B. M. and Miranda, L. B.:
Physical Oceanography of the Western Atlantic continental shelf located between 4N and 34S,
in: The Sea,
edited by: Robinson, A. R. and Brink, K. H.,
John Wiley & Sons, New York, 210–251, 1998.
Cazes-Boezio, G., Robertson, A. W., and Mechoso, C. R.:
Seasonal Dependence of ENSO Teleconnections over South America and Relationships with Precipitation in Uruguay,
J. Climate,
16, 1159–1176, https://doi.org/10.1175/1520-0442(2003)16<1159:Sdoeto>2.0.Co;2, 2003.
Chen, S., Qiu, B., Klein, P., Wang, J., Torres, H., Fu, L.-L., and Menemenlis, D.:
Seasonality in Transition Scale from Balanced to Unbalanced Motions in the World Ocean,
J. Phys. Oceanogr.,
48, 591–605, https://doi.org/10.1175/jpo-d-17-0169.1, 2018.
Cogné, N., Gallagher, K., and Cobbold, P. R.:
Post-rift reactivation of the onshore margin of southeast Brazil: Evidence from apatite (U–Th)/He and fission-track data,
Earth Planet. Sc. Lett.,
309, 118–130, https://doi.org/10.1016/j.epsl.2011.06.025, 2011.
Corrêa, I. C. S.:
Les variations du niveau de la mer durant les derniers 17.500 ans BP: l'exemple de la plate-forme continentale du Rio Grande do Sul-Brésil,
Mar. Geol.,
130, 163–178, https://doi.org/10.1016/0025-3227(95)00126-3, 1996.
de Mahiques, M. M., Tassinari, C. C. G., Marcolini, S., Violante, R. A., Figueira, R. C. L., Silveira, I. C. A., Burone, L., and Sousa, S. H. M.:
Nd and Pb isotope signatures on the Southeastern South American upper margin: Implications for sediment transport and source rocks,
Mar. Geol.,
250, 51–63, https://doi.org/10.1016/j.margeo.2007.11.007, 2008.
de Mahiques, M. M., Hanebuth, T. J. J., Nagai, R. H., Bícego, M. C., Figueira, R. C. L., Sousa, S. H. M., Burone, L., Franco-Fraguas, P., Taniguchi, S., Salaroli, A. B., Dias, G. P., Prates, D. M., and Freitas, M. E. F.: Inorganic and organic geochemical fingerprinting of sediment sources and ocean circulation on a complex continental margin (São Paulo Bight, Brazil), Ocean Sci., 13, 209–222, https://doi.org/10.5194/os-13-209-2017, 2017.
de Mahiques, M. M., Figueira, R. C. L., Sousa, S. H. d. M., Santos, R. F. d., Ferreira, P. A. d. L., Kim, B. S. M., Cazzoli y Goya, S., de Matos, M. C. S. N., and Bícego, M. C.:
Sedimentation on the southern Brazilian shelf mud depocenters: Insights on potential source areas,
J. S. Am. Earth Sci.,
100, 102577, https://doi.org/10.1016/j.jsames.2020.102577, 2020.
DePaolo, D. J.:
Neodymium isotopes in the Colorado Front Range and crust–mantle evolution in the Proterozoic,
Nature,
291, 193–196, https://doi.org/10.1038/291193a0, 1981.
Depetris, P. J. and Griffin, J. J.:
Suspended Load in the Rio De La Plata Drainage Basin,
Sedimentology,
11, 53–60, https://doi.org/10.1111/j.1365-3091.1968.tb00840.x, 1968.
Duarte, C. S. L. and Viana, A. R.:
Santos Drift System: stratigraphic organization and implications for late Cenozoic palaeocirculation in the Santos Basin, SW Atlantic Ocean,
Geological Society, London, Special Publications,
276, 171–198, https://doi.org/10.1144/gsl.sp.2007.276.01.09, 2007.
Emilsson, I.:
The shelf and coastal waters off southern Brazil,
Boletim do Instituto Oceanográfico,
11, 101–112, https://doi.org/10.1590/S0373-55241961000100004, 1961.
Etchichury, M. C. and Remiro, J. R.:
Muestras de fondo de la plataforma continental comprendida entre los paralelos 34∘ y 36∘ 30 de latitud sur y los meridianos 53∘ 10 y 56∘ 30 de longitud oeste,
Revista del Museo Argentino de Ciencias Naturales Bernardino Rivadavia,
VI, 1–70, 1960.
Etchichury, M. C. and Remiro, J. R.:
La corriente de Malvinas y los sedimentos pampeanopatagónicos,
Revista del Museo Argentino de Ciencias Naturales Bernardino Rivadavia,
1, 1–11, 1963.
Fernandes, A. M., da Silveira, I. C. A., Calado, L., Campos, E. J. D., and Paiva, A. M.:
A two-layer approximation to the Brazil Current–Intermediate Western Boundary Current System between 20∘ S and 28∘ S,
Ocean Model.,
29, 154–158, https://doi.org/10.1016/j.ocemod.2009.03.008, 2009.
Figueiredo, A. G. and Madureira, L. S. P.:
Topografia, composição, refletividade do substrato marinho e identificação de províncias sedimentares na Regiao Sudeste-Sul do Brasil,
Série Documentos Técnicos do Programa REVIZEE Score Sul,
Instituto Oceanográfico – USP, São Paulo, 64 pp., 2004.
Framiñan, M. B. and Brown, O. B.:
Study of the Río de la Plata turbidity front, Part 1: spatial and temporal distribution,
Cont. Shelf Res.,
16, 1259–1282, https://doi.org/10.1016/0278-4343(95)00071-2, 1996.
Franco-Fraguas, P., Burone, L., Mahiques, M., Ortega, L., Urien, C., Muñoz, A., López, G., Marin, Y., Carranza, A., Lahuerta, N., and de Mello, C.:
Hydrodynamic and geomorphological controls on surface sedimentation at the Subtropical Shelf Front/Brazil–Malvinas Confluence transition off Uruguay (Southwestern Atlantic Continental Margin),
Mar. Geol.,
349, 24–36, https://doi.org/10.1016/j.margeo.2013.12.010, 2014.
Franco-Fraguas, P., Burone, L., Mahiques, M., Ortega, L., and Carranza, A.:
Modern sedimentary dynamics in the Southwestern Atlantic Contouritic Depositional System: New insights from the Uruguayan margin based on a geochemical approach,
Mar. Geol.,
376, 15–25, https://doi.org/10.1016/j.margeo.2016.03.008, 2016.
Franco-Fraguas, P., Burone, L., Goso, C., Scarabino, F., Muzio, R., Carranza, A., Ortega, L., Muñoz, A., and Mahiques, M.:
Sedimentary processes in the head of the Cabo Polonio mega slide canyon (Southwestern Atlantic margin off Uruguay),
Latin American Journal of Sedimentology and Basin Analysis,
24, 31–44, 2017.
Frenz, M., Höppner, R., Stuut, J.-B., Wagner, T., and Henrich, R.:
Surface sediment bulk geochemistry and grain-size composition related to the oceanic circulation along the South American continental margin in the Southwest Atlantic,
in: The South Atlantic in the Late Quaternary: Reconstruction of material budgets and current Systems,
edited by: Wefer, G., Mulitza, S., and Ratmeyer, V.,
Springer-Verlag, Berlin, 347–373, 2003.
Gaiero, D. M., Brunet, F., Probst, J.-L., and Depetris, P. J.:
A uniform isotopic and chemical signature of dust exported from Patagonia: Rock sources and occurrence in southern environments,
Chem. Geol.,
238, 107–120, https://doi.org/10.1016/j.chemgeo.2006.11.003, 2007.
Goldstein, S. L., O'Nions, R. K., and Hamilton, P. J.:
A Sm-Nd isotopic study of atmospheric dusts and particulates from major river systems,
Earth Planet. Sc. Lett.,
70, 221–236, https://doi.org/10.1016/0012-821x(84)90007-4, 1984.
Govin, A., Holzwarth, U., Heslop, D., Ford Keeling, L., Zabel, M., Mulitza, S., Collins, J. A., and Chiessi, C. M.:
Distribution of major elements in Atlantic surface sediments (36∘ N–49∘ S): Imprint of terrigenous input and continental weathering,
Geochem. Geophy. Geosy.,
13, Q01013, https://doi.org/10.1029/2011gc003785, 2012.
Hammer, Ø., Harper, D. A. T., and Ryan, P. D.: PAST: Paleontological statistics software package for education and data analysis, Palaeontologia Electronica, 4, 9, 2001.
Henry, F., Probst, J. L., Thouron, D., Depetris, P., and Garçon, V.:
Nd-Sr isotopic compositions of dissolved and particulate material transported by the Parana and Uruguay rivers during high (December 1993) and low (September 1994) water periods. / Compositions isotopiques de Nd et Sr des matières en suspension et dissoutes transportées par les fleuves Parana et Uruguay en périodes de hautes (décembre 1993) et basses (septembre 1994) eaux,
Sciences Géologiques. Bulletin,
49, 89–100, https://doi.org/10.3406/sgeol.1996.1937, 1996.
Hernandez-Molina, F. J., Paterlini, M., Violante, R., Marshall, P., de Isasi, M., Somoza, L., and Rebesco, M.:
Contourite depositional system on the Argentine Slope: An exceptional record of the influence of Antarctic water masses,
Geology,
37, 507–510, https://doi.org/10.1130/g25578a.1, 2009.
Hernández-Molina, F. J., Paterlini, M., Somoza, L., Violante, R., Arecco, M. A., de Isasi, M., Rebesco, M., Uenzelmann-Neben, G., Neben, S., and Marshall, P.:
Giant mounded drifts in the Argentine Continental Margin: Origins, and global implications for the history of thermohaline circulation,
Mar. Petrol. Geol.,
27, 1508–1530, https://doi.org/10.1016/j.marpetgeo.2010.04.003, 2010.
Hernández-Molina, F. J., Soto, M., Piola, A. R., Tomasini, J., Preu, B., Thompson, P., Badalini, G., Creaser, A., Violante, R. A., Morales, E., Paterlini, M., and De Santa Ana, H.:
A contourite depositional system along the Uruguayan continental margin: Sedimentary, oceanographic and paleoceanographic implications,
Mar. Geol.,
378, 333–349, https://doi.org/10.1016/j.margeo.2015.10.008, 2015.
Hernández-Molina, F. J., Soto, M., Piola, A. R., Tomasini, J., Preu, B., Thompson, P., Badalini, G., Creaser, A., Violante, R. A., Morales, E., Paterlini, M., and De Santa Ana, H.:
A contourite depositional system along the Uruguayan continental margin: Sedimentary, oceanographic and paleoceanographic implications,
Mar. Geol.,
378, 333–349, https://doi.org/10.1016/j.margeo.2015.10.008, 2016.
Höppner, N., Chiessi, C. M., Lucassen, F., Zavala, K., Becchio, R. A., and Kasemann, S. A.:
Modern isotopic signatures of Plata River sediments and changes in sediment supply to the western subtropical South Atlantic during the last 30 kyr,
Quaternary Sci. Rev.,
259, 106910, https://doi.org/10.1016/j.quascirev.2021.106910, 2021.
Jacobsen, S. B. and Wasserburg, G. J.:
Sm-Nd isotopic evolution of chondrites,
Earth Planet. Sc. Lett.,
50, 139–155, https://doi.org/10.1016/0012-821x(80)90125-9, 1980.
Jeandel, C., Arsouze, T., Lacan, F., Téchiné, P., and Dutay, J. C.:
Isotopic Nd compositions and concentrations of the lithogenic inputs into the ocean: A compilation, with an emphasis on the margins,
Chem. Geol.,
239, 156–164, https://doi.org/10.1016/j.chemgeo.2006.11.013, 2007.
Kessarkar, P. M., Rao, V. P., Ahmad, S. M., and Babu, G. A.:
Clay minerals and Sr–Nd isotopes of the sediments along the western margin of India and their implication for sediment provenance,
Mar. Geol.,
202, 55–69, https://doi.org/10.1016/s0025-3227(03)00240-8, 2003.
Khondoker, R., Weiss, D., van de Flierdt, T., Rehkämper, M., Kreissig, K., Coles, B. J., Strekopytov, S., Humphreys-Williams, E., Dong, S., Bory, A., Bout-Roumazeilles, V., Smichowski, P., Cid-Agüero, P., Babinski, M., Losno, R., and Monna, F.:
New constraints on elemental and Pb and Nd isotope compositions of South American and Southern African aerosol sources to the South Atlantic Ocean,
Geochemistry,
78, 372–384, https://doi.org/10.1016/j.chemer.2018.05.001, 2018.
Kowsmann, R. O. and Costa, M. P. A.:
Sedimentação quaternária da margem continental brasileira e das áreas adjacentes, REMAC,
Petrobrás, Rio de Janeiro, 55 pp., 1979 (in Portuguese).
Lantzsch, H., Hanebuth, T. J. J., Chiessi, C. M., Schwenk, T., and Violante, R. A.:
The high-supply, current-dominated continental margin of southeastern South America during the late Quaternary,
Quaternary Res.,
81, 339–354, https://doi.org/10.1016/j.yqres.2014.01.003, 2014.
Legeais, J.-F., Ollitrault, M., and Arhan, M.:
Lagrangian observations in the Intermediate Western Boundary Current of the South Atlantic,
Deep-Sea Res. Pt. II,
85, 109–126, https://doi.org/10.1016/j.dsr2.2012.07.028, 2013.
Lonardi, A. G., and Ewing, M.:
Sediment transport and distribution in the Argentine Basin. 4. Bathymetry of the continental margin, Argentine Basin and other related provinces. Canyons and sources of sediments,
in: Physics and Chemistry of the Earth,
edited by: Ahrens, L. H., Press, F., Runcorn, S. K., and Urey, H. C.,
Pergamon Press, New York, 79–121, 1971.
Lourenço, R. A., Magalhães, C. A., de Mahiques, M. M., Taniguchi, S., and Bícego, M. C.:
Distribution of terrigenous and marine material along the Southeastern Brazilian continental margin,
Regional Studies in Marine Science,
14, 118–125, https://doi.org/10.1016/j.rsma.2017.05.012, 2017.
Lovecchio, J. P., Rohais, S., Joseph, P., Bolatti, N. D., and Ramos, V. A.:
Mesozoic rifting evolution of SW Gondwana: A poly-phased, subduction-related, extensional history responsible for basin formation along the Argentinean Atlantic margin,
Earth-Sci. Rev.,
203, 103138, https://doi.org/10.1016/j.earscirev.2020.103138, 2020.
Maamaatuaiahutapu, K., Garçon, V. C., Provost, C., Boulahdid, M., and Osiroff, A. P.:
Brazil-Malvinas Confluence: Water mass composition,
J. Geophys. Res.,
97, 9493–9505, https://doi.org/10.1029/92jc00484, 1992.
Maccali, J., Hillaire-Marcel, C., Carignan, J., and Reisberg, L. C.:
Pb isotopes and geochemical monitoring of Arctic sedimentary supplies and water mass export through Fram Strait since the Last Glacial Maximum,
Paleoceanography,
27, PA1201, https://doi.org/10.1029/2011pa002152, 2012.
Maccali, J., Hillaire-Marcel, C., and Not, C.:
Radiogenic isotope (Nd, Pb, Sr) signatures of surface and sea ice-transported sediments from the Arctic Ocean under the present interglacial conditions,
Polar Res.,
37, 1442982, https://doi.org/10.1080/17518369.2018.1442982, 2018.
Magdaleno, G. B., Petronilho, L. A., Ruiz, I. R., Babinski, M., Hollanda, M. H. B. M., and Martins, V. T. S.:
Pb-Sr-Nd isotopoic characterization of USGS reference materials by TIMS at CPGeo-USP,
II Workshop of inorganic mass spectrometry, São Paulo, 4–6 September 2017, available at: http://wims.igc.usp.br/wp-content/uploads/2017/07/Giselle-Magdaleno.pdf (last access: 20 December 2019), 2017.
Maly, M., Schattner, U., Lobo, F., Ramos, R. B., Dias, R. J., Couto, D. M., Sumida, P. Y., and de Mahiques, M. M.:
The Alpha Crucis Carbonate Ridge (ACCR): Discovery of a giant ring-shaped carbonate complex on the SW Atlantic margin,
Sci. Rep.-UK,
9, 18697, https://doi.org/10.1038/s41598-019-55226-3, 2019.
Mantovanelli, S. S., Tassinari, C. C. G., de Mahiques, M. M., Jovane, L., and Bongiolo, E.:
Characterization of Nd radiogenic isotope signatures in sediments from the southwestern Atlantic Margin,
Frontiers in Earth Science,
6, 74, https://doi.org/10.3389/feart.2018.00074, 2018.
Matano, R. P., Palma, E. D., and Piola, A. R.: The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation, Ocean Sci., 6, 983–995, https://doi.org/10.5194/os-6-983-2010, 2010.
Mathias, G. L., Nagai, R. H., Trindade, R. I. F., and de Mahiques, M. M.:
Magnetic fingerprint of the late Holocene inception of the Río de la Plata plume onto the southeast Brazilian shelf,
Palaeogeogr. Palaeocl.,
415, 183–196, https://doi.org/10.1016/j.palaeo.2014.03.034, 2014.
Melankholina, E. N. and Sushchevskaya, N. M.:
Tectono-Magmatic Evolution of the South Atlantic Continental Margins with Respect to Opening of the Ocean,
Geotectonics,
52, 173–193, https://doi.org/10.1134/s0016852118020061, 2018.
Mendes, J. C., de Medeiros, S. R., and Chaves, E. A.:
Assinatura isotópica de Sr e Nd do magmatismo cálcio-alcalino de alto-K na Faixa Ribeira central: o exemplo do Granito São Pedro em Lumiar, RJ,
Revista Brasileira de Geociências,
41, 408–419, https://doi.org/10.25249/0375-7536.2011413408419, 2011.
Miller, J. R., Mackin, G., and Orbock Miller, S. M.:
Geochemical Fingerprinting, in: Application of Geochemical Tracers to Fluvial Sediment,
edited by: Miller, J. R., Mackin, G., and Miller, S. M. O.,
SpringerBriefs in Earth Sciences,
Springer, Cham, 11–51, 2015.
Möller, O. O., Piola, A. R., Freitas, A. C., and Campos, E. J. D.:
The effects of river discharge and seasonal winds on the shelf off southeastern South America,
Cont. Shelf Res.,
28, 1607–1624, https://doi.org/10.1016/j.csr.2008.03.012, 2008.
Moraes, R. P., Figueiredo, B. R., and Lafon, J. M.:
Pb-Isotopic tracing of metal-pollution sources in the Ribeira Valley, Southeastern Brazil,
Terrae,
1, 26–33, 2004.
Moulin, M., Aslanian, D., and Unternehr, P.:
A new starting point for the South and Equatorial Atlantic Ocean,
Earth-Sci. Rev.,
98, 1–37, https://doi.org/10.1016/j.earscirev.2009.08.001, 2010.
Muñoz, A., Fontan, A., Marin, Y., Carranza, A., Franco-Fraguas, P., and Rubio, L.:
Informe de Campaña Uruguay 0110. Buque de Investigacion Oceanografica y Pesquera Miguel Oliver (SGM),
Dinara, Montevideo, 67, 2010.
Nagai, R. H., Ferreira, P. A. L., Mulkherjee, S., Martins, M. V., Figueira, R. C. L., Sousa, S. H. M., and de Mahiques, M. M.:
Hydrodynamic controls on the distribution of surface sediments from the southeast South American continental shelf between 23∘ S and 38∘ S,
Cont. Shelf Res.,
89, 51–60, https://doi.org/10.1016/j.csr.2013.09.016, 2014a.
Nagai, R. H., Sousa, S. H. M., and de Mahiques, M. M.:
The southern Brazilian shelf,
Geological Society, London, Memoirs, 41, 47–54, https://doi.org/10.1144/m41.5, 2014b.
Núñez-Riboni, I., Boebel, O., Ollitrault, M., You, Y., Richardson, P. L., and Davis, R.:
Lagrangian circulation of Antarctic Intermediate Water in the subtropical South Atlantic,
Deep-Sea Res. Pt. II,
52, 545–564, https://doi.org/10.1016/j.dsr2.2004.12.006, 2005.
Nürnberg, D. and Müller, R. D.:
The tectonic evolution of the South Atlantic from Late Jurassic to present,
Tectonophysics,
191, 27–53, https://doi.org/10.1016/0040-1951(91)90231-g, 1991.
Owens, P. N., Blake, W. H., Gaspar, L., Gateuille, D., Koiter, A. J., Lobb, D. A., Petticrew, E. L., Reiffarth, D. G., Smith, H. G., and Woodward, J. C.:
Fingerprinting and tracing the sources of soils and sediments: Earth and ocean science, geoarchaeological, forensic, and human health applications,
Earth-Sci. Rev.,
162, 1–23, https://doi.org/10.1016/j.earscirev.2016.08.012, 2016.
Palazon, L. and Navas, A.:
Variability in source sediment contributions by applying different statistic test for a Pyrenean catchment,
J. Environ. Manage.,
194, 42–53, https://doi.org/10.1016/j.jenvman.2016.07.058, 2017.
Palma, E. D., Matano, R. P., and Piola, A. R.:
A numerical study of the Southwestern Atlantic Shelf circulation: Stratified ocean response to local and offshore forcing,
J. Geophys. Res.-Oceans,
113, C11010, https://doi.org/10.1029/2007JC004720, 2008.
Parker, G., Violante, R., and Paterlini, C. M.:
Fisiografía de la Plataforma Continental, in: Relatorio, 13o Congreso Geologico Argentino,
edited by: Ramos, V. A., and Turic, M. A.,
Asociación Geológica Argentina, Buenos Aires, 1–16, 1996.
Pezzi, L. P., de Souza, R. B., Acevedo, O., Wainer, I., Mata, M. M., Garcia, C. A. E., and de Camargo, R.:
Multiyear measurements of the oceanic and atmospheric boundary layers at the Brazil-Malvinas confluence region,
J. Geophys. Res.,
114, D19103, https://doi.org/10.1029/2008jd011379, 2009.
Piola, A. R. and Matano, R. P.:
Brazil and Falklands (Malvinas) currents,
in: Encyclopedia of Ocean Sciences,
edited by: Steele, J. H., Thorpe, S. A., and Turekian, K. K.,
Academic Press, London, 340–349, 2001.
Piola, A. R. and Matano, R. P.:
Ocean Currents: Atlantic Western Boundary—Brazil Current/Falkland (Malvinas) Current,
in: Encyclopedia of Ocean Sciences,
edited by: Cochran, J. K., Bokuniewicz,
H. J., and Yager, P. L.,
Elsevier, Amsterdam, 414–420, 2019.
Piola, A. R., Matano, R. P., Palma, E. D., Möller, O. O., and Campos, E. J. D.:
The influence of the Plata River discharge on the western South Atlantic shelf,
Geophys. Res. Lett.,
32, L01603, https://doi.org/10.1029/2004GL021638, 2005.
Piola, A. R., Möller, O. O., Guerrero, R. A., and Campos, E. J. D.:
Variability of the subtropical shelf front off eastern South America: Winter 2003 and summer 2004,
Cont. Shelf Res.,
28, 1639–1648, https://doi.org/10.1016/j.csr.2008.03.013, 2008.
Piola, A. R., Palma, E. D., Bianchi, A. A., Castro, B. M., Dottori, M., Guerrero, R. A., Marrari, M., Matano, R. P., Möller Jr., O. O., and Saraceno, M.:
Physical oceanography of the SW Atlantic Shelf: A review,
in: Plankton ecology of the southwestern Atlantic,
edited by: Hoffmeyer, M. S., Sabatini, M. E., Brandini, F. P., Calliari, D. L., and Santinelli, N. H.,
Springer, Cham, 37–56, 2018.
Piola, A. R., Campos, E. J. D., Möller, O. O., Charo, M., and Martinez, C.:
Subtropical Shelf Front off eastern South America,
J. Geophys. Res.-Oceans,
105, 6565–6578, https://doi.org/10.1029/1999jc000300, 2000.
Pisciottano, G., Díaz, A., Cazess, G., and Mechoso, C. R.:
El Niño-Southern Oscillation Impact on Rainfall in Uruguay,
J. Climate,
7, 1286–1302, https://doi.org/10.1175/1520-0442(1994)007<1286:Ensoio>2.0.Co;2, 1994.
Potter, P. E.:
South American modern beach sand and plate tectonics,
Nature,
311, 645–648, 1984.
Preu, B., Hernández-Molina, F. J., Violante, R., Piola, A. R., Paterlini, C. M., Schwenk, T., Voigt, I., Krastel, S., and Spiess, V.:
Morphosedimentary and hydrographic features of the northern Argentine margin: The interplay between erosive, depositional and gravitational processes and its conceptual implications,
Deep-Sea Res. Pt. I,
75, 157–174, https://doi.org/10.1016/j.dsr.2012.12.013, 2013.
Qiao, L., Liu, S., Xue, W., Liu, P., Hu, R., Sun, H., and Zhong, Y.:
Spatiotemporal variations in suspended sediments over the inner shelf of the East China Sea with the effect of oceanic fronts,
Estuar. Coast. Shelf S.,
234, 106600, https://doi.org/10.1016/j.ecss.2020.106600, 2020.
Ragatky, D., Tupinambá, M., and Duarte, B. P.:
Sm/Nd data of metasedimentary rocks from the central segment of Ribeira Belt, southeastern Brazil,
Revista Brasileira de Geociências,
30, 165–168, 2000.
Razik, S., Chiessi, C. M., Romero, O. E., and von Dobeneck, T.:
Interaction of the South American Monsoon System and the Southern Westerly Wind Belt during the last 14 kyr,
Palaeogeogr. Palaeocl.,
374, 28–40, https://doi.org/10.1016/j.palaeo.2012.12.022, 2013.
Razik, S., Govin, A., Chiessi, C. M., and von Dobeneck, T.:
Depositional provinces, dispersal, and origin of terrigenous sediments along the SE South American continental margin,
Mar. Geol.,
363, 261–272, https://doi.org/10.1016/j.margeo.2015.03.001, 2015.
Reis, A. T., Silva, C. G., Gorini, M. A., Leão, R., Pinto, N., Perovano, R., Santos, M. V. M., Guerra, J. V., Jeck, I. K., and Tavares, A. A. A.:
The Chuí Megaslide Complex: Regional-Scale Submarine Landslides on the Southern Brazilian Margin,
in: Submarine Mass Movements and their Consequences,
edited by: Lamarche, G., Mountjoy, J., Bull, S., Hubble, T., Krastel, S., Lane, E., Micallef, A., Moscardelli, L., Mueller, C., Pecher, I., and Woelz, S.,
Advances in Natural and Technological Hazards Research, 41,
Springer, Cham, 115–123, 2016.
Riccomini, C., Grohmann, C. H., Sant'Anna, L. G., and Hiruma, S. T.:
A captura das cabeceiras do Rio Tietê pelo Rio Paraíba do Sul,
in: A Obra de Aziz Nacib Ab'Sáber,
edited by: Modenesi-Gauttieri, M. C., Bartorelli, A., Mantesso-Neto, V., Carneiro, C. D. R., and Lisboa, M. B. A. L.,
BecaBALL, São Paulo, 157–169, 2010 (in Portuguese).
Roig, H. L., Moraes Rego, A. P., Dantas, E. L., Meneses, P. R., Walde, D. H. G., and Goia, S. M. L. C.:
Assinatura isotópica Sm-Nd de sedimentos em suspensão: implicações na caracterização da proveniência dos sedimentos do Rio Paraíba do Sul – SP,
Revista Brasileira de Geociências,
35, 503–514, 2005.
Roy, M., van de Flierdt, T., Hemming, S. R., and Goldstein, S. L.:
40Ar/39Ar ages of hornblende grains and bulk Sm/Nd isotopes of circum-Antarctic glacio-marine sediments: Implications for sediment provenance in the southern ocean,
Chem. Geol.,
244, 507–519, https://doi.org/10.1016/j.chemgeo.2007.07.017, 2007.
Sato, K., Tassinari, C. C. G., Kawashita, K., and Petronilho, L.:
A metodologia Sm–Nd no IGc-USP e suas aplicações,
An. Acad. Bras. Cienc.,
67, 313–336, 1995.
Schattner, U., José Lobo, F., López-Quirós, A., Passos Nascimento, J. L., and Mahiques, M. M.:
What feeds shelf-edge clinoforms over margins deprived of adjacent land sources? An example from southeastern Brazil,
Basin Res.,
32, 293–301, https://doi.org/10.1111/bre.12397, 2020.
Schmid, C. and Garzoli, S. L.:
New observations of the spreading and variability of the Antarctic Intermediate Water in the Atlantic,
J. Mar. Res.,
67, 815–843, https://doi.org/10.1357/002224009792006151, 2009.
Schmid, C., Siedler, G., and Zenk, W.:
Dynamics of Intermediate Water Circulation in the Subtropical South Atlantic,
J. Phys. Oceanogr.,
30, 3191–3211, https://doi.org/10.1175/1520-0485(2000)030<3191:doiwci>2.0.co;2, 2000.
Severov, D. N., Pshennikov, V., and Remeslo, A. V.:
Fronts and thermohaline structure of the Brazil–Malvinas Confluence System,
Adv. Space Res.,
49, 1373–1387, https://doi.org/10.1016/j.asr.2012.01.024, 2012.
Signorini, S. R.:
On the circulation and the volume transport of the Brazil Current between the Cape of São Tomé and Guanabara Bay,
Deep-Sea Res.,
25, 481–490, https://doi.org/10.1016/0146-6291(78)90556-8, 1978.
Silveira, I. C. A., Foloni Neto, H., Costa, T. P., Schmidt, A. C. K., Pereira, A. F., Castro Filho, B. M., Soutelino, R. G., and Grossmann-Matheson, G. S.:
Physical oceanography of Campos Basin continental slope and ocean region,
in: Meteorology and Oceanography: regional environmental characterization of the Campos Basin, Southwest Atlantic. Habitats,
edited by: Martins, R. P. and Grossman-Matheson, G. S.,
Elsevier, Rio de Janeiro, 135–190, 2017.
Soto, M., Morales, E., Veroslavsky, G., de Santa Ana, H., Ucha, N., and Rodríguez, P.:
The continental margin of Uruguay: Crustal architecture and segmentation,
Mar. Petrol. Geol.,
28, 1676–1689, https://doi.org/10.1016/j.marpetgeo.2011.07.001, 2011.
Spadone, A. and Provost, C.:
Variations in the Malvinas Current volume transport since October 1992,
J. Geophys. Res.,
114, C02002, https://doi.org/10.1029/2008jc004882, 2009.
Steinmann, L., Baques, M., Wenau, S., Schwenk, T., Spiess, V., Piola, A. R., Bozzano, G., Violante, R., and Kasten, S.:
Discovery of a giant cold-water coral mound province along the northern Argentine margin and its link to the regional Contourite Depositional System and oceanographic setting,
Mar. Geol.,
427, 106223, https://doi.org/10.1016/j.margeo.2020.106223, 2020.
Storlazzi, C. D. and Reid, J. A.:
The influence of El Niño-Southern Oscillation (ENSO) cycles on wave-driven sea-floor sediment mobility along the central California continental margin,
Cont. Shelf Res.,
30, 1582–1599, https://doi.org/10.1016/j.csr.2010.06.004, 2010.
Subha Anand, S., Rahaman, W., Lathika, N., Thamban, M., Patil, S., and Mohan, R.:
Trace Elements and Sr, Nd Isotope Compositions of Surface Sediments in the Indian Ocean: An Evaluation of Sources and Processes for Sediment Transport and Dispersal,
Geochem. Geophy. Geosy.,
20, 3090–3112, https://doi.org/10.1029/2019gc008332, 2019.
Sverdrup, H. U., Johnson, M. W., and Fleming, R. H.:
The Oceans, Their Physics, Chemistry, and General Biology,
Prentice-Hall, New York, 1065 pp., 1942.
Tarakanov, R. Y. and Morozov, E. G.:
Flow of Antarctic Bottom Water at the output of the Vema Channel,
Oceanology,
55, 153–161, https://doi.org/10.1134/s0001437015010166, 2015.
Teruggi, M. E.:
El material volcánico-piroclástico en la sedimentación pampeana,
Revista de la Asociación Geológica de Argentina,
9, 184–191, 1954.
Tomczak, M. and Godfrey, J. S.:
CHAPTER 15 – Hydrology of the Atlantic Ocean,
in: Regional Oceanography,
Pergamon, Amsterdam, 279–296, 1994a.
Tomczak, M. and Godfrey, J. S.:
CHAPTER 14 – The Atlantic Ocean,
in: Regional Oceanography,
Pergamon, Amsterdam, 253–278, 1994b.
Urien, C. M. and Ewing, M.:
Recent Sediments and Environment of Southern Brazil, Uruguay, Buenos Aires, and Rio Negro Continental Shelf,
in: The Geology of Continental Margins,
edited by: Burk, C. A. and Drake, C. L.,
Springer Berlin Heidelberg, Berlin, Heidelberg, 157–177, 1974.
Urien, C. M. and Martins, L. R.:
Sedimentación marina en América del Sur Oriental,
Memorias del seminario sobre ecología bentónica y sedimentación de la plataforma continental del Atlántico Sur, 9–12 May 1978, Montevideo, Uruguay, Unesco, 5–28, 1979.
Urien, C. M., Martins, L. R., and Martins, I.:
Modelos deposicionais na plataforma continental do Rio Grande do Sul (Brasil), Uruguai e Buenos Aires (Argentina), Notas Técnicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, 2, 13–25, 1980.
Violante, R. A., Paterlini, C. M., Costa, I. C., Hernandez-Molina, J., Segovia, L. M., Cavallotto, J. L., Marcolini, S., Bozzano, G., Laprida, C., García Chapori, N., Bickert, T., and Spieß, V.:
Sismoestratigrafia y evolucion geomorfologica del talud continental adyacente al litoral del este bonaerense, Argentina,
Latin American Journal of Sedimentology and Basin Analysis,
17, 33–62, 2010.
Violante, R. A., Paterlini, C. M., Marcolini, S. I., Costa, I. P., Cavallotto, J. L., Laprida, C., Dragani, W., Garcia Chapori, N., Watanabe, S., Totah, V., Rovere, E. I., and Osterrieth, M. L.:
Argentine continental shelf: morphology, sediments, processes and evolution since the Last Glacial Maximum,
Geological Society, London, Memoirs, 41, 55–68, https://doi.org/10.1144/m41.6, 2014.
Violante, R. A., Burone, L., Mahiques, M., and Cavallotto, J. L.:
The Southwestern Atlantic Ocean: present and past marine sedimentation,
Latin American Journal of Sedimentology and Basin Analysis,
24, 1–5, 2017a.
Violante, R. A., Cavallotto, J. L., Bozzano, G., and Spoltore, D. V.:
Deep marine sedimentation in the Argentine continental margin: Revision and state-of-the-art,
Latin American Journal of Sedimentology and Basin Analysis,
24, 7–29, 2017b.
Voigt, I., Henrich, R., Preu, B. M., Piola, A. R., Hanebuth, T. J. J., Schwenk, T., and Chiessi, C. M.:
A submarine canyon as a climate archive — Interaction of the Antarctic Intermediate Water with the Mar del Plata Canyon (Southwest Atlantic),
Mar. Geol.,
341, 46–57, https://doi.org/10.1016/j.margeo.2013.05.002, 2013.
Walling, D. E.:
The evolution of sediment source fingerprinting investigations in fluvial systems,
J. Soil. Sediment.,
13, 1658–1675, https://doi.org/10.1007/s11368-013-0767-2, 2013.
Warratz, G., Schwenk, T., Voigt, I., Bozzano, G., Henrich, R., Violante, R., and Lantzsch, H.:
Interaction of a deep-sea current with a blind submarine canyon (Mar del Plata Canyon, Argentina),
Mar. Geol.,
417, https://doi.org/10.1016/j.margeo.2019.106002, 2019.
Weldeab, S., Emeis, K.-C., Hemleben, C., and Siebel, W.:
Provenance of lithogenic surface sediments and pathways of riverine suspended matter in the Eastern Mediterranean Sea: evidence from 143Nd/144Nd and 87Sr/86Sr ratios,
Chem. Geol.,
186, 139–149, https://doi.org/10.1016/s0009-2541(01)00415-6, 2002.
Zembruscki, S. G.:
Geomorfologia da margem continental sul brasileira e das bacias oceânicas adjacentes,
in: Geomorfologia da margem continental Brasileira e áreas oceânicas adjacentes,
edited by: Chaves, H. A. F.,
REMAC, 7, Petrobrás, Rio de Janeiro, 129–177, 1979 (in Portuguese).
Short summary
In this work we used a concept called geochemical fingerprinting, with isotopes of neodymium and lead as tools to recognize the main sources and the physical processes responsible for the transport and deposition of sediments on a large area of the South Atlantic margin. Distinct sources, such as Antarctica, the Andean Cordillera, the Río de la Plata basin, and old rocks from the Brazilian shield, are identified.
In this work we used a concept called geochemical fingerprinting, with isotopes of neodymium and...
