DOI: 10.1016/j.quascirev.2012.11.020
Scopus记录号: 2-s2.0-84885190236
论文题名: Late Quaternary paleohydrological conditions in the drylands ofnorthern Mexico: A summer precipitation proxy record of the last 80 cal ka BP
作者: Roy P.D. ; Quiroz-Jiménez J.D. ; Pérez-Cruz L.L. ; Lozano-García S. ; Metcalfe S.E. ; Lozano-Santacruz R. ; López-Balbiaux N. ; Sánchez-Zavala J.L. ; Romero F.M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 78 起始页码: 342
结束页码: 354
语种: 英语
英文关键词: Aeolian activity
; C/N
; Geochemistry
; Last Glacial
; Northern Mexico
; Paleohydrology
; Provenance
; Summer precipitation
Scopus关键词: Aeolian activities
; C/N
; Last glacial
; Me-xico
; Paleo-hydrology
; Provenance
; Summer precipitation
; Geochemistry
; Runoff
; Stratigraphy
; Storms
; arid region
; carbon isotope
; chronology
; eolian process
; geochemistry
; lake water
; Last Glacial
; magnetic mineral
; monsoon
; paleoclimate
; paleoenvironment
; paleohydrology
; precipitation (climatology)
; provenance
; proxy climate record
; rainstorm
; sediment core
; summer
; watershed
; westerly
; Mexico [North America]
英文摘要: We present a late Quaternary multi-proxy record from the paleolake Babicora in order to understand the influence of North American Monsoon (NAM) and westerly winter storms on the paleohydrological budget of the drylands of northern Mexico. Stratigraphy, 14C chronology, mineral magnetism and geochemistry of the 976cm long sediment core were used to reconstruct the hydrological conditions over the last 80calkaBP. The inverse relationship between the proxy records of runoff into Babicora and winter precipitation in southwestern USA indicate the minimal influence of westerly winter storms at 29°N during the Last Glacial period. Westerly winds transported minimally chemically altered sediments from the dry watershed during the cold stadials and the basin received more than average runoff as a result of a stronger NAM during the warm interstadials. The highest pluvial discharge occurred prior to 58calkaBP and terrestrial plants became the major contributor to organic matter deposited between 71 and 53calkaBP. Over the last 40calkaBP, the high amplitude fluctuations in runoff and lake water salinity mirrored an unstable summer rainfall regime. © 2012 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60502
Appears in Collections: 过去全球变化的重建
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作者单位: Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México DF, Mexico; Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México DF, Mexico; School of Geography, University of Nottingham, Nottingham NG 7 2RD, United Kingdom; USAI, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México DF, Mexico
Recommended Citation:
Roy P.D.,Quiroz-Jiménez J.D.,Pérez-Cruz L.L.,et al. Late Quaternary paleohydrological conditions in the drylands ofnorthern Mexico: A summer precipitation proxy record of the last 80 cal ka BP[J]. Quaternary Science Reviews,2013-01-01,78