Artículo

El editor solo permite decargar el artículo en su versión post-print desde el repositorio. Por favor, si usted posee dicha versión, enviela a
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

A sedimentary succession included in the lower section of the Playa Hermosa Formation from the Playa Verde Basin, Uruguay, is described. Two facies associations, one mainly coarse- to medium-grained and other one fine-grained, have been defined (FA I-II). In the first one, breccias, conglomerates, sandstones and minor mudstones were deposited in a subaqueous depositional setting (proximal) suggesting slope instability and resedimentation processes. The second one contains diamictites, rhythmites, sandstones and mudstones and presents abundant evidence of soft-deformation, also interpreted to be deposited in a subaqueous environment (distal). Dropstones, clast layers, diamictites, rhythmites and varve-like deposits are interpreted as ice rafting processes generated during a glacial episode. This glacial-related succession constitutes the first record from the Varanger glaciation at the Río de la Plata Craton of the late Neoproterozoic age and also represents one of the oldest sedimentary records after the collision of the Río de la Plata and Kalahari Cratons. A combined interaction of extensional faulting and glaciation in a tectonically active basin with locally high subsidence rates, resulted in high rates of sedimentation and resedimentation processes. As a whole, the sedimentary succession sets a relevant datum to be used in future paleogeographic reconstructions of the Vendian glacial record in southern South America.

Registro:

Documento: Artículo
Título:The record of the Varanger glaciation at the Río De La Plata Craton, Vendian-Cambrian of Uruguay
Autor:Pazos, P.J.; Sánchez-Bettucci, L.; Tofalo, O.R.
Filiación:Facultad Cie. Exactas y Naturales, Área Sedimentología, Universidad de Buenos Aires, Nunez, Buenos Aires CP 1428, Argentina
Facultad de Ciencias, Inst. de Geologia y Paleontologia, Area Geofísica-Geotectonica, Malvin Norte, Montevideo 4225, Uruguay
Palabras clave:Glaciation; Neoproterozoic; South America; Varanger; Vendian; Cambrian; depositional environment; facies analysis; glaciation; paleoclimate; Proterozoic; sedimentary sequence; Vendian; Playa Verde Basin; Rio de la Plata Craton; Uruguay
Año:2003
Volumen:6
Número:1
Página de inicio:65
Página de fin:77
DOI: http://dx.doi.org/10.1016/S1342-937X(05)70644-4
Título revista:Gondwana Research
Título revista abreviado:Gondwana Res.
ISSN:1342937X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1342937X_v6_n1_p65_Pazos

Referencias:

  • Alvarenga, C.J.S., Trompette, R., Glacially influenced sedimentation in the latter Proterozoic of the Paraguay belt (Mato Grosso, Brazil) (1992) Palaeogeogr., Palaeoclim., Palaeoecol., 92, pp. 85-105
  • Ashley, G.M., Rhythmic sedimentation in glacial Lake Hitchcock, Massachusetts-Connecticut Glaciofluvial and Glaciolacustrine Sedimentation, 23, pp. 304-320. , (975) Jopling, A.V. and McDonald, B.C. (Eds.), Society of Economical Paleontologists Mineralogists, SEPM Spl. Publ
  • Bennett, M.R., Doyle, P., Mather, A.E., Dropstones: Their origin and significance (1996) Palaeogeogr., Palaeoclim., Palaeoecol., 121, pp. 331-339
  • Bennett, M.R., Doyle, P., Mather, A.E., Woodfin, J., Testing and climatic significance of dropstones: An example from Miocene of the Sorbas Basin, south east Spain (1994) Geol. Mag., 131, pp. 845-848
  • Boggiani, P., Evoluçao da Bacia Corumbá (Neoproterozoico) no contexto de Rift-drift no supercontinente Pannotia (1998) II Congreso Uruguayo de Geología, Punta Del Este, pp. 259-262
  • Chemale F., Jr., Evoluçao geologica do escudo Sul-Rio-Grandense (2000) Geología Do Rio Grande Do Sul, pp. 14-52. , Holz, M., De Ros, L.F. (Eds.), Ediçao Sigo/Federaçao Rio Grande do Sul
  • Cingolani, C.A., Bonhomme, M.G., Geochronology of la Tinta Upper Proterozoic sedimentary rocks, Argentina (1982) Precamb. Res., 18, pp. 103-118
  • Dalla Salda, L., Bossi, J., Cingolani, C., The Río de la Plata cratonic region of southwestern Gondwanaland (1988) Episodes, 11, pp. 263-269
  • Deynoux, M., Terrestrial or waterlain glacial diamictites?. Three case studies from the Precambrian and late Ordovician glacial drifts in West Africa (1985) Palaeogeogr., Palaeoclim., Palaeoecol., 51, pp. 97-141
  • Eyles, N., Earth glacial record (1993) Earth Sci. Rev., 35, pp. 1-248
  • Eyles, C.H., Eyles, N., Subaqueous mass flow origin for Lower Permian diamictites and associated facies of the Grant Group, Barbwire Terrace, Canning Basin, western Australia (2000) Sedimentology, 47, pp. 343-356
  • Eyles, N., Young, G.M., Geodynamic controls on glaciation in Earth history (1994) Earth's Glacial Record, pp. 1-28. , Deynoux, M. et al. (Eds.), Cambridge Univ. Press, Chapter 1
  • Eyles, C.H., Eyles, N., Gostin, V.A., Facies and allostratigraphy of high-latitude glacially influenced marine strata of the early Permian, southern Sydney Basin, Australia (1998) Sedimentology, 45, pp. 121-161
  • Eyles, N., Eyles, C.H., Miall, A.D., Lithofacies types and vertical profile models: An alternative approach to the description and environmental interpretation of glacial diamict and diamictites sequences (1983) Sedimentology, 30, pp. 393-410
  • Fambrini, G.L., Paes de Almeida, R., Fragoso Cesar, A.R.S., Riccomini, C., Evidencias de depósitos glaciomarinhos neoproterozoicos afetados por tempestades da Formaçao Playa Hermosa (Piriápolis, Uruguai) (2001) XI Congreso Latinoamericano de Geología Y III Congreso Uruguayo De Geología, , Abstracts, CD-rom version, work 146
  • Gaucher, C., Sprechman, P., Upper Vendian skeletal fauna fauna of the Arroyo del Soldado, Group, Uruguay (1999) Beringeria, 23, pp. 55-91
  • Gaucher, C., Sprechman, P., Montana, J., Martinez, S., Litoestratigrafía, Sedimentología y Paleogeografía del Grupo Arroyo del Soldado (Vendiano-Cámbrico del Uruguay) (1998) II Congreso Uruguayo de Geología, Punta Del Este, pp. 24-31
  • Gawhthorpe, R.L., Fraser, A.J., Collier, R.E.L., Sequential stratigraphy in active extensional basins: Implications for the interpretation of ancient basin fill (1994) Mar. Petrol. Geol., 11, pp. 642-658
  • Grotzinger, J.P., Watters, W.A., Knoll, A.H., Calcified metazoans in thrombolite-stromatolite reefs of the terminal Proterozoic Nama Group, Namibia (2000) Paleobiology, 26, pp. 334-359
  • Hambrey, M.J., Harland, B., Summary of earth's pre-Pleistocene glacial record (1981) Earth Pre-Pleistocene Glacial Record, pp. 943-970. , Hambrey, M.J. and Harland, B. (Eds.), Cambridge Univ. Press
  • Hoffman, P.F., Kaufman, A.J., Halverson, G.P., Comings and goings of global glaciations on a Neoproterozoic tropical platform in Namibia (1998) Geol. Soc. Amer., 8, pp. 1-8. , GSA Today
  • Hyde, W.T., Crowley, T.J., Baum, S.K., Peltler, W.R., Neoproterozoic "snowball Earth" simulations with a coupled climate/ice sheet model (2000) Nature, 405, pp. 425-429
  • Kennedy, M.J., Stratigraphy, sedimentology, and isotopic geochemistry of Australian Neoproterozoic postglacial cap dolostones: Deglaciation, δ13C excursions, and carbonate precipitation (1996) J. Sed. Res., 66, pp. 1050-1064
  • Kröner, A., Late Precambrian diamictites of South Africa and Namibia (1981) Earth Pre-Pleistocene Glacial Record, pp. 167-177. , Hambrey, M.J. and Harland, B. (Eds.), Cambridge Univ. Press
  • Leeder, M., Liquefaction, liquefaction structures and other "soft" sediment deformation structures (2000) Sedimentology and Sedimentary Basins: From Turbulence to Tectonics, (PART 4), pp. 226-236. , Leeder, M. (Ed.), Blackwell Science. Chapter 12
  • Linares, E., Sánchez-Bettucci, L., Edades Rb/Sr y K/Ar del Cerro Pan de Azúcar, Piriápolis, Uruguay (1997) South America Symposium on Isotope Geology, pp. 176-180. , I, Sao Paulo
  • López Gamundí, O.R., Características texturales de flujos de detritos subácueos: implicancias genéticas (1994) Revista Asociación Argentina de Sedimentología, 1, pp. 53-78
  • López Gamundí, O.R., Glacial-postglacial transition in the late Paleozoic basins of southern South America (1997) Late Glacial and Postglacial Environmental Changes, pp. 147-164. , Martini, I.P. (Ed.), Oxford Univ. Press, New York. Chapter 9
  • Martins-Neto, M.A., Pedrosa Soares, A.C., Lima, S.A.A., Tectonosedimentary evolution of sedimentary basins from the late Paleoproterozoic to late Neoproterozoic in the Sao-Franscisco craton and the Aracuai fold belt, eastern Brazil (2001) Sed. Geol., 141-142, pp. 343-370
  • Masquelin, H., Sánchez-Bettucci, L., Propuesta de evolución tectono-sedimentaria para la fosa tardi-brasiliana en la región de Piriápolis, Uruguay (1993) Rev. Brasilera de Geociencias, 23, pp. 313-322
  • Meert, J.G., Growing Gondwana and rethinking Rodinia: A paleomagnetic perspective (2001) Gondwana Res., 4, pp. 279-288
  • Paim, P.S.G., Chemale F., Jr., Lopes, R.daC., A Bacia do Camaquá (2000) Geología Do Rio Grande Do Sul, pp. 231-274. , Holz, M. and De Ros, L.F. (Eds.), Ediçao Sigo/Universidade Federal Rio Grande do Sul, FRGS
  • Pazos, P.J., The late Carboniferous glacial to postglacial transition: Facies and sequence stratigraphy western Paganzo Basin, Argentina (2002) Gondwana Res., 5, pp. 467-487
  • Pazos, P.J., Paleoenvironmental framework of the glacial-postglacial transition (late Paleozoic) in the Paganzo-Calingasta basin (southern South America) and the Great Karoo-Kalahari Basins (southern Africa): Ichnological implications (2002) Gondwana Res., 5, pp. 619-640
  • Pazos, P.J., Sánchez-Bettucci, L., Rasgos mareales en la sucesión neoproterozoica de La Pedrera, Grupo Rocha, Uruguay (1999) XIV. Congreso Geológico Argentino, p. 71. , Actas I, Abst
  • Pazos, P.J., Tofalo, R.O., Sánchez-Bettucci, L., Procesos sedimentarios e indicadores paleoclimáticos en la sección inferior de la Formación Playa Hermosa, Cuenca Playa Verde, Piriápolis, Uruguay (1998) II Congreso Uruguayo de Geología, Punta Del Este, pp. 64-69
  • Pedrosa-Soares, A.C., Noce, C.M., Wiedemann, C.M., Pinto, C.P., The Araçuaí-West-Congo Orogen in Brazil: An overview of a confined orogen formed during Gondwanaland assembly (2001) Precamb. Res., 110, pp. 307-323
  • Pickford, M.H.L., Review of the Riphean, Vendian and early Cambrian palaeontology of the Otavi and Nama Groups, Namibia (1995) Comm. Geol. Surv. Namibia, 10, pp. 57-81
  • Poiré, D.G., Spalletti, L.A., Del Valle, A., The Cambrian-Ordovician siliciclastic sequence from the Tandilia system (2000) Cambrian from the Southern Edge, pp. 55-64. , Acen̄olaza, F.G. and Peralta, S. (Eds.), Instituto superior de correlación geológica (INSUGEO), Miscelánea 6, San Miguel del Tucumán, Argentina
  • Powell, R.D., Glacimarine processes and inductive lithofacies modeling of ice shelf and tidewater glacier sediments based on Quaternary examples (1984) Mar. Geol., 57, pp. 1-52
  • Ravnas, R., Steel, R.J., Architecture of marine rift basin successions (1998) Amer. Assoc. Petrol. Geol. Bull., 82, pp. 110-146
  • Rocha Campos, A.C., Hasui, Y., Late Precambrian Jangada Group and Puga Formation of central western Brazil (1981) Earth Pre-Pleistocene Glacial Record, pp. 916-919. , Hambrey, M.J. and Harland, B. (Eds.), Cambridge Univ. Press
  • Sánchez-Bettuci, L., (1998) Evolución Tectónica Del Cinturón Don Feliciano En la Región Minas-Piriápolis, República Oriental Del Uruguay, , Ph.D. Thesis. Facultad de Ciencias Exactas y Naturales, Universidad Buenos Aires, Argentina
  • Sánchez-Bettucci, L., Linares, E., Primeras edades en basaltos del Complejo Sierra de Las Animas (1996) XII: Congreso Geológico Argentino Y III Congreso de Exploración De Hidrocarburos, pp. 399-404. , Buenos Aires, Actas I
  • Sánchez-Bettucci, L., Pazos, P.J., Análisis Paleoambiental y marco tectónico de la cuenca Playa Verde, Piriápolis, Uruguay (1996) XII: Congreso Geológico Argentino Y III Congreso de Exploración De Hidrocarburos, 1, pp. 405-412. , Buenos Aires
  • Sánchez-Bettucci, L., Ramos, V.A., Aspectos Geológicos de las rocas metavolcánicas y metasedimentarias del Grupo Lavalleja, Sudeste de Uruguay (1999) Rev. Brasilera de Geociencias, 29, pp. 557-570
  • Sánchez Bettucci, L., Rapalini, A.E., Preliminary Paleomagnetic data from the Sierra de Las Animas Complex, Uruguay, and their implications in the Gondwana assembly (1997) International Conference on Terrane Geology, pp. 154-156. , Christchurch, Nueva Zelanda, Extended Abstract
  • Sánchez-Bettucci, L., Rapalini, A.E., La curva de desplazamiento Polar Aparente Neoproterozoica del Cratón del Río de la Plata (1998) II Congreso Uruguayo de Geología, pp. 14-15
  • Sánchez-Bettucci, L., Rapalini, A., Paleomagnetism of the Sierra de Las Animas Complex, Southern Uruguay: Its implications in the assembly of western Gondwana Precamb. Res., , in press
  • Schermerhorn, L.J.G., Terminology of mixed coarse-fine sediments (1966) J. Sed. Petrol., 36, pp. 831-836
  • Shanmugam, G., High density turbidity currents: Are they sandy debris flows? (1996) J. Sed. Res., 66, pp. 2-10
  • Shanmugam, G., The Bouma sequence and the turbidity mind set (1997) Earth. Sci. Rev., 42, pp. 201-229
  • Spalletti, L.A., Del Valle, A., Las diamictitas del sector septentrional de Tandilia, caracteres sedimentológicos y origen (1984) Asoc. Geol. Arg. Rev., 39, pp. 188-206
  • Stollhofen, H., Stanistreet, I.G., Bangert, B., Grill, H., Tuffs, tectonism and glacially related sea-level changes, Carboniferous-Permian, southern Namibia (2000) Palaeogeogr., Palaeoclim., Palaeoecol., 161, pp. 127-150
  • Thomas, G.S.P., Connell, R.J., Iceberg drop, dump and grounding structures from Pleistocene glacio-lacustrine sediments, Scotland (1985) J. Sed. Petrol., 55, pp. 243-249
  • Trompette, R., Temporal relationship between cratonization and glaciation: The Vendian-early Cambrian glaciation in western Gondwana (1996) Palaeogeogr., Palaeoclim., Palaeoecol., 23, pp. 373-383
  • Varnes, D., Landslide types and process (1958) Landslide and Engineering Practice, 29, pp. 20-47. , Heckel, E. (Ed.), Highway Research Board, Spl. Report
  • Visser, N.J., Deglaciation sequences in the Permo-Carboniferous Karoo and Kalahari Basins of southern Africa: A tool in the analysis of glaciomarine basin fills (1997) Sedimentology, 44, pp. 504-521
  • Walker, R.G., Turbidites and submarine fans (1992) Facies Models, pp. 239-263. , Walker, R.G. and James, N.P. (Eds.), Geol. Assoc. Can., Stittsville, Ont
  • Walker, R.G., Plint, A.G., Wave and storm-dominated shallow marine systems (1992) Facies Models-Response to Sea Level Changes, pp. 219-238. , Walker, R.G. and James, N.P. (Eds.), Geological Assoc. Canada
  • Williams, G.E., The enigmatic late Proterozoic glacial climate: An Australian perspective (1994) Earth's Glacial Record, pp. 146-164. , Deynoux, M. et al. (Eds.), Cambridge Univ. Press
  • Young, G.M., Are Neoproterozoic glacial deposits preserved on the margins of Laurentia related to the fragmentation of two supercontinents? (1995) Geology, 23, pp. 153-156

Citas:

---------- APA ----------
Pazos, P.J., Sánchez-Bettucci, L. & Tofalo, O.R. (2003) . The record of the Varanger glaciation at the Río De La Plata Craton, Vendian-Cambrian of Uruguay. Gondwana Research, 6(1), 65-77.
http://dx.doi.org/10.1016/S1342-937X(05)70644-4
---------- CHICAGO ----------
Pazos, P.J., Sánchez-Bettucci, L., Tofalo, O.R. "The record of the Varanger glaciation at the Río De La Plata Craton, Vendian-Cambrian of Uruguay" . Gondwana Research 6, no. 1 (2003) : 65-77.
http://dx.doi.org/10.1016/S1342-937X(05)70644-4
---------- MLA ----------
Pazos, P.J., Sánchez-Bettucci, L., Tofalo, O.R. "The record of the Varanger glaciation at the Río De La Plata Craton, Vendian-Cambrian of Uruguay" . Gondwana Research, vol. 6, no. 1, 2003, pp. 65-77.
http://dx.doi.org/10.1016/S1342-937X(05)70644-4
---------- VANCOUVER ----------
Pazos, P.J., Sánchez-Bettucci, L., Tofalo, O.R. The record of the Varanger glaciation at the Río De La Plata Craton, Vendian-Cambrian of Uruguay. Gondwana Res. 2003;6(1):65-77.
http://dx.doi.org/10.1016/S1342-937X(05)70644-4