Artículos
Publicado 2004-03-25
Palabras clave
- Younger Dryas,
- El Abra,
- Paleoceanografía,
- Paleoclimatología,
- Cuaternario
Cómo citar
Rincón, D., & Martínez, J. (2004). El evento “Younger Dryas” en el norte de suramérica. Boletín De Geología, 26(42), 39–55. Recuperado a partir de https://revistas.uis.edu.co/index.php/revistaboletindegeologia/article/view/907
Resumen
En el norte de Suramérica y el Caribe existen indicios de la presencia de un evento frío y seco, análogo al “Younger Dryas” (YD) del Atlántico Norte. Las evidencias más contundentes se encuentran en los registros geoquímicos y micropaleontológicos marinos de la Cuenca del Cariaco (Venezuela) y del Abanico del Amazonas, junto con registros palinológicos de alta resolución de los Andes del Norte. Durante este periodo, las tierras altas de los Andes del norte y las cordilleras de Centro América experimentaron descensos de temperatura y pluviosidad y las áreas costeras del norte de Suramérica registraron eventos de surgencia más intensos. Las condiciones climáticas y oceanográficas se encuentran aparentemente relacionadas con un desplazamiento hacia el sur de la Zona de Convergencia Intertropical (ITCZ) y un fortalecimiento de los vientos Alisios del noreste.
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Referencias
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Hall, J.M. (2002). Barium and Lithium in Foraminifera:Glacial-interglacial Changes in the North Atlantic. PhDDissertation. Louisiana State University.(http://etd.lsu.edu:8085/docs/available/etd-0710102-192931/).
Harris, S.E., Mix, A.C. (1999). Pleistocene precipitationbalance in the Amazon Basin recorded in deep seasediments. Quaternary Research, Vol. 51, pp. 14-26
Haug, G.H., Günther, D., Peterson, L.C., Sigman, D.M.,Hughen, K.A., Aeschlimann, B. (2003). Climate and thecollapse of Maya civilization. Science, Vol. 299, pp. 1731-1735
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Hughen, K., Overpeck, J.T., Lehman, S.J., Kashgarian, M.,Southons, J., Peterson, L.C., Alley, R., Sigman, D.M. (1998).Deglacial changes in ocean circulation from an extendedradiocarbon calibration. Nature, Vol. 391, pp. 65-68.Jones, M.H. (1997). Late Quaternary foraminifera fromlower bathyal and abyssal sediments, Gulf of Mexico: Arecord of paleoceanographic change. PhD DissertationAbstract. Louisiana State University.(http://wwwlib.umi.com/dissertations/intrial/gateway)
Jones, R.T., Marshall, J.D. (2002). Lacustrine oxygenisotopic records from temperate Marl Lakes. PAGESNews, Vol. 10, N. 2, pp. 17-19
Kastner, T.P., Goñi, M.A. (2003). Constancy in thevegetation of the Amazon basin during the latePleistocene: Evidence from the organic mattercomposition of Amazon deep sea fan sediments. Geology,Vol. 31, N. 4, pp. 291-294.
Keigwin, L.D., Curry, W.B., Lehman, S.J., Johnsen, S.(1994). The role of the deep ocean in North Atlanticclimate change between 70 and 130 kyr ago. Nature,Vol. 371, pp. 323-326
Kinder, T.H., Heburn, G.W., Green, A.W. (1985). Someaspects of the Caribbean circulation. Marine Geology,Vol. 68, pp. 25-52
Baker, P.A., Rigsby, C.A., Seltzer, G.O., Fritz, S.C.,Lowenstein, T.K., Bacher, N.P., Veliz, C. (2001). Tropicalclimate changes at millennial and orbital timescales onthe Bolivian Altiplano. Nature, Vol. 409, pp. 698-701
Balsam, W.L., Otto-Bliesner, B.L., Deaton, B.C. (1995).Modern and last glacial maximum eolian sedimentationpatterns in the Atlantic Ocean interpreted from iron oxidecontent. Paleoceanographay, Vol. 10, N. 5, pp. 493-507
Behling, H., Hooghiemstra, H. (2001). Neotropicalsavanna environments in space and time: Late Quaternaryinterhemispheric comparisons. En: Markgraf, V.Interhemispheric Climate Linkages. Academic Press,U.S.A, pp. 307-323
Behling, H., Hooghiemstra, H. (1998). Late Quaternarypalaeoecology and palaeoclimatology from pollen recordsof the savannas of the Llanos Orientales in Colombia.Palaeogeography, Palaeoclimatology, Palaeoecology Vol.139, pp. 251-267
Berrío, J.C., Behling, H., Willie, M., Hooghiemstra, H.(2000). Climate history from 9 new pollen records of theColombian savannas since the last glacial maximum; atransect through the Llanos Orientales. Symposium PastGlobal Changes. Amsterdam, The Netherlands, pp. 1-2
Berrío, J.C., Hooghiemstra, H., Marchant, R., Rangel,O. (2002). Late-glacial and Holocene history of the dryforest area in the south Colombian Cauca Valley. Journalof Quaternary Science Vol. 17, N. 7, pp. 667-682.Bowles, F.A., Fleischer, P. (1985). Orinoco and Amazonriver sediment input to the eastern Caribbean Basin.Marine Geology Vol. 68, pp. 53-72
Bradbury, J.P., Grosjean, M., Stine, S., Sylvestre, F.(2001). Full and late glacial lake records along the PEPTransect: Their role in developing interhemisphericpaleoclimate interactions. En: Markgraf, V.Interhemispheric Climate Linkages. Academic Press,U.S.A, pp. 265-291
Bradbury, J.P., Leyden, B., Salgado-Labouriau, M.,Lewis, W.M., Schubert, C., Binford, M.W., Frey, D.G.,Whitehead, D.R., Weibezahn, F.H. (1981). LateQuaternary environmental history of Lake Valencia,Venezuela. Science, Vol. 214, pp. 1299-1305
Broecker, W.S. (1995). The Glacial World According toWally. Eldigio Press. Lamont-Doherty Earth Observatoryof Columbia University. U.S.A, 318 p
Bush, M.B., Piperno, D.R., Colinvaux, P.A., De Oliveira,P.E., Krissek, L.A., Miller, M.C., Rowe, W.E. (1992). A14.300 yr paleoecological profile of a lowland tropicallake in Panama. Ecological Monographs, Vol. 62, N. 2,pp. 251-275
Clapperton, C.M., Hall, M., Mothes, P., Hole, M.J., Still,J.W., Helmens, K.F., Kuhry, P., Gemmell, A.M.D.(1997). A Younger Dryas ice-cap in the equatorial Andes.Quaternary Research, Vol. 47, pp. 13-28
Clark, P.U., Pisias, N.G., Stocker, T.F., Weaver, A.J.(2002). The role of thermohaline circulation in abruptclimate change. Nature, Vol. 415, pp. 863-869
Colinvaux, P.A., de Oliveira, P.E. (2000). Palaeoecologyand climate of the Amazon basin during the last glacial cycle.Journal of Quaternary Science, Vol. 15, pp. 347-356
Colinvaux, P.A., de Oliveira, P.E., Bush, M.B. (2000).Amazonian and neotropical plant communities on glacialtime-scales: The failure of the aridity and refugehypotheses. Quaternary Science Reviews, Vol. 19, pp.141-169
Colinvaux, P.A., Bush, M.B., Steinitz-Kannan, M., Miller,M.C. (1997). Glacial and postglacial pollen records fromthe Ecuadorian Andes and Amazon. QuaternaryResearch, Vol. 48, pp. 69-78
Dahl, K., Repeta, D., Goericke, R. (2003).Reconstructing the fitoplancton community structure inthe Cariaco Basin during the Younger Dryas cold eventusing Chlorin Steryl Esters. Geophysical ResearchAbstracts, Vol. 5, N. 01174
Fanning, A.F., Weaver, A.J. (1997). Temporal-geographical meltwater influences on the North AtlanticConveyor: Implications for the Younger Dryas.Paleoceanography, Vol. 12, N. 2, pp. 307-320
Ganopolski, A., Rahmstorf, S. (2001). Rapid changesof glacial climate simulated in a coupled climate model.Nature, Vol. 409, pp. 153-158
Grimm, E.C., Lozano, S., Behling, H., Markgraf, V.(2001). Holocene vegetation and climate variability in theAmericas. En: Markgraf, V. Interhemispheric ClimateLinkages. Academic Press, USA, pp. 325-270.Haberle, S.G., Maslin, M.A. (1999). Late Quaternaryvegetation and climate change in the Amazon Basin basedon a 50.000 year pollen record from the Amazon Fan,ODP site 932. Quaternary Research, Vol. 51, pp. 27-38.
Hall, J.M. (2002). Barium and Lithium in Foraminifera:Glacial-interglacial Changes in the North Atlantic. PhDDissertation. Louisiana State University.(http://etd.lsu.edu:8085/docs/available/etd-0710102-192931/).
Harris, S.E., Mix, A.C. (1999). Pleistocene precipitationbalance in the Amazon Basin recorded in deep seasediments. Quaternary Research, Vol. 51, pp. 14-26
Haug, G.H., Günther, D., Peterson, L.C., Sigman, D.M.,Hughen, K.A., Aeschlimann, B. (2003). Climate and thecollapse of Maya civilization. Science, Vol. 299, pp. 1731-1735
Haug, G.H., Hughen, K.A., Sigman, D.M., Peterson,L.C., Röhl, U. (2001). Southward migration of theconvergence zone through the Holocene. Science, Vol.293, pp. 1304-1308
Herrera, L. F. (2000). Estudio Paleoecológico deltardiglacial y Holoceno en la Depresión Momposina.Fundación ERIGAIE, Bogotá, 71p
Higuera, A., Brenner, M., Hodell, D.A., Curtis, J.H.,Leyden, B.W., Binford, M.W. (1999). A 10,30014C yrRecord of climate and vegetation change from Haiti.Quaternary Research, Vol. 52, pp. 159-170
Hughen, K., Overpeck, J.T., Lehman, S.J., Kashgarian, M.,Southons, J., Peterson, L.C., Alley, R., Sigman, D.M. (1998).Deglacial changes in ocean circulation from an extendedradiocarbon calibration. Nature, Vol. 391, pp. 65-68.Jones, M.H. (1997). Late Quaternary foraminifera fromlower bathyal and abyssal sediments, Gulf of Mexico: Arecord of paleoceanographic change. PhD DissertationAbstract. Louisiana State University.(http://wwwlib.umi.com/dissertations/intrial/gateway)
Jones, R.T., Marshall, J.D. (2002). Lacustrine oxygenisotopic records from temperate Marl Lakes. PAGESNews, Vol. 10, N. 2, pp. 17-19
Kastner, T.P., Goñi, M.A. (2003). Constancy in thevegetation of the Amazon basin during the latePleistocene: Evidence from the organic mattercomposition of Amazon deep sea fan sediments. Geology,Vol. 31, N. 4, pp. 291-294.
Keigwin, L.D., Curry, W.B., Lehman, S.J., Johnsen, S.(1994). The role of the deep ocean in North Atlanticclimate change between 70 and 130 kyr ago. Nature,Vol. 371, pp. 323-326
Kinder, T.H., Heburn, G.W., Green, A.W. (1985). Someaspects of the Caribbean circulation. Marine Geology,Vol. 68, pp. 25-52