DOI: 10.1016/j.gloplacha.2013.05.012
论文题名: Late Pliocene vegetation and orbital-scale climate changes from the western Mediterranean area
作者: Jiménez-Moreno G. ; Burjachs F. ; Expósito I. ; Oms O. ; Carrancho T. ; Villalaín J.J. ; Agustí J. ; Campeny G. ; Gómez de Soler B. ; van der Made J.
刊名: Global and Planetary Change
ISSN: 0921-8247
出版年: 2013
卷: 108 起始页码: 15
结束页码: 28
语种: 英语
英文关键词: Camp dels Ninots
; Late Pliocene
; Maar lake
; Mediterranean area
; Orbital-scale climate variability
; Pollen analysis
; Vegetation
Scopus关键词: Camp dels Ninots
; Climate variability
; Late Pliocene
; Mediterranean areas
; Pollen analysis
; Climate change
; Geomagnetism
; Lakes
; Vegetation
; aridity
; biostratigraphy
; climate variation
; cooling
; cyclostratigraphy
; eccentricity
; extinction
; maar
; paleobiogeography
; paleomagnetism
; palynology
; Pliocene
; precipitation (climatology)
; sedimentation rate
; vegetation dynamics
; vegetation structure
; Mediterranean Sea
; Mediterranean Sea (West)
; Spain
英文摘要: The Late Pliocene is a very interesting period as climate deteriorated from a warm optimum at ca. 3.3-3.0. Ma to a progressive climate cooling. Simultaneously, the Mediterranean area witnessed the establishment of the Mediterranean-type seasonal precipitation rhythm (summer drought). These important climate changes produced significant vegetation changes, such as the extinction of several thermophilous and hygrophilous plant taxa from the European latitudes. Besides these long-term trends, climate was also characterized by cyclical variability (i.e., orbital changes) that forced vegetation changes (forested vs. open vegetation). In the Mediterranean area, cyclical changes in the vegetation were mostly forced by precession. In this study we analyzed pollen from a Late Pliocene maar lake core from NE Spain. An increase in aridity is observed as well as cyclic variations throughout the studied sequence. Cyclicity was mostly forced by precession but also by obliquity and eccentricity. Precipitation seems to be the main factor controlling these cycles. These data allowed estimating a sedimentary rate of ca. 0.19. mm/yr and the time duration covered by the studied core, close to 200. ka. The combination of biostratigraphy, palaeomagnetism and cyclostratigraphy allowed for a very precise dating of the sediments between ca. 3.3 and 3.1. Ma. Climate and paleobiogeographical implications are discussed within the context of the Late Pliocene Northern Hemisphere glacial intensification. © 2013 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880381325&doi=10.1016%2fj.gloplacha.2013.05.012&partnerID=40&md5=a1ea8f479aaa348528f6b2d34d8fac3f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11153
Appears in Collections: 全球变化的国际研究计划
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作者单位: Departamento de Estratigrafía y Paleontología, Universidad de Granada, Spain
Recommended Citation:
Jiménez-Moreno G.,Burjachs F.,Expósito I.,et al. Late Pliocene vegetation and orbital-scale climate changes from the western Mediterranean area[J]. Global and Planetary Change,2013-01-01,108.