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No. de sistema: 000042183

LDR _ _ 00000nab^^22^^^^z^^^4500
008 _ _ 171121m20179999xx^^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-ca
044 _ _ a| mx
245 0 0 a| Late Holocene hydroclimate of the western Yucatan Peninsula (Mexico)
506 _ _ a| Acceso electrónico sólo para usuarios de ECOSUR
520 1 _ a| Chemical composition, magnetic susceptibility and texture of sediments in a swamp from the Los Petenes Biosphere Reserve provide information about late Holocene hydrological variations on the western margin of the Yucatan Peninsula, Mexico. Periods of lower than average amounts of K-bearing clastics during 2580–2050, 1100–825 and 700–160 cal a BP represent drought intervals. Magnetic minerals were better preserved during these arid intervals, as the swamp was not perennially anoxic. Hydroclimate was unstable during 2580–2050 cal a BP, as several storm-surge events occurred within an overall arid interval. The drought of 1100–825 cal a BP was contemporary with the Terminal Classic Period and the drought of 700–160 cal a BP was characterized by the lowest erosion as well as highest abundance of authigenic carbonate. Comparison with other climate proxy records from the region suggests that droughts had different geographic coverage. We attribute the different geographic coverage of droughts to variable strengths of polar continental air masses as well as dynamics of the Caribbean Low Level Jet and tropical cyclones that brought precipitation into different parts of the peninsula.
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Paleoclimatología
650 _ 4 a| Sedimentos
650 _ 4 a| Composición química
650 _ 4 a| Cuaternario
651 _ 4 a| Reserva de la Biosfera Los Petenes (Campeche, México)
700 1 _ a| Priyadarsi, D. Roy
700 1 _ a| Torrescano Valle, Nuria
e| coaut.
700 1 _ a| Islebe, Gerald A.
c| Doctor
e| coaut.
700 1 _ a| Gutiérrez Ayala, Luz Verónica
e| coaut.
773 0 _
t| Journal of Quaternary Science
g| Vol. 32, no. 8 (Noviembre 2017), p. 1112–1120
x| 0267-8179
900 _ _ a| Solicítelo con su bibliotecario/a
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Noviembre 2017
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
LNG eng
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*Solicítelo con su bibliotecario/a
Late Holocene hydroclimate of the western Yucatan Peninsula (Mexico)
Priyadarsi, D. Roy (autor)
Torrescano Valle, Nuria (autor)
Islebe, Gerald A. (autor)
Gutiérrez Ayala, Luz Verónica (autor)
Nota: Acceso electrónico sólo para usuarios de ECOSUR
Contenido en: Journal of Quaternary Science. Vol. 32, no. 8 (Noviembre 2017), p. 1112–1120. ISSN: 0267-8179
No. de sistema: 42183
Tipo: - Artículo con arbitraje
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"Chemical composition, magnetic susceptibility and texture of sediments in a swamp from the Los Petenes Biosphere Reserve provide information about late Holocene hydrological variations on the western margin of the Yucatan Peninsula, Mexico. Periods of lower than average amounts of K-bearing clastics during 2580–2050, 1100–825 and 700–160 cal a BP represent drought intervals. Magnetic minerals were better preserved during these arid intervals, as the swamp was not perennially anoxic. Hydroclimate was unstable during 2580–2050 cal a BP, as several storm-surge events occurred within an overall arid interval. The drought of 1100–825 cal a BP was contemporary with the Terminal Classic Period and the drought of 700–160 cal a BP was characterized by the lowest erosion as well as highest abundance of authigenic carbonate. Comparison with other climate proxy records from the region suggests that droughts had different geographic coverage. We attribute the different geographic coverage of droughts to variable strengths of polar continental air masses as well as dynamics of the Caribbean Low Level Jet and tropical cyclones that brought precipitation into different parts of the peninsula."


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