Sediment–soil sequences in the Granada Basin as evidence for long- and short-term climatic changes during the Pliocene and Quaternary in the Western Mediterranean

Günster, Norbert; Skowronek, Armin

doi:10.1016/s1040-6182(00)00112-9

Cited by 31 publications

(7 citation statements)

References 22 publications

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“…Since then, despite erosion forces, it has suffered a progressive uplift until its present-day highest elevation at the Mulhacén peak (3480 m). Climatic oscillations in the Sierra Nevada during the last 5 My (Tertiary-Quaternary) are well documented from paleosol evidence within adjacent basins (Günster & Skowronek, 2001) as well as from palynological records in caves and lacustrine sediments (Pons & Reille, 1988;Carrión & al., 2001a). Paleosol studies in periglacial areas reveal that at least three cold Quaternary episodes took place in this massif, identified as Riss, Würm, and Late Glacial, each one with a decreasing glacial activity (Gómez Ortiz & Salvador i Franch, 1996;Simón & al., 2000;Schulte, 2002).…”

Section: Introductionmentioning

confidence: 94%

Genetic and morphological diversity in <i>Armeria</i> (Plumbaginaceae) is shaped by glacial cycles in Mediterranean refugia

Aguilar

Larena

Feliner

2011

Anal. Jard. Bot. Madr.

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Fuertes Aguilar, J., Gutiérrez Larena, B. & Nieto Feliner, G. 2011. Genetic and morphological diversity in Armeria (Plumbaginaceae) is shaped by glacial cycles in Mediterranean refugia. Anales Jard. Bot. Madrid 68(2): 175-197.Little is known of the direct effects of Quaternary glaciationdeglaciation cycles in plants within southern European refugia. This study, centered in the Sierra Nevada (S Spain), used RAPD and morphometric data from 36 populations of Armeria (Plumbaginaceae) from five taxa belonging to three species that are endemic to that region: A. filicaulis subsp. nevadensis, A. fili caulis subsp. trevenqueana, A. filicaulis subsp. alfacarensis, A. splendens, and A. villosa subsp. bernisii. The results based on genetic analyses at the population level (AMOVA, genetic diversity, genetic distance) and genetic and morphological analyses at individual level (haplotype phenetic distance, PCO, morphometrics) indicate that: (1) genetic diversity decreases with altitude, probably as a result of the postglacial recolonization processes, except in some secondary contact zones between taxa; (2) gene flow among interspecific populations, most likely facilitated by contraction of vegetation belts, led to the formation of hybrid taxa; (3) genetic distances among populations provide a useful basis for studying scenarios with frequent interspecific gene-flow since it allows distinguishing eventual cases of introgression from hybridogenous taxa.

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Section: Introductionmentioning

confidence: 94%

Genetic and morphological diversity in <i>Armeria</i> (Plumbaginaceae) is shaped by glacial cycles in Mediterranean refugia

Aguilar

Larena

Feliner

2011

Anal. Jard. Bot. Madr.

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“…At the Messinian-Pliocene boundary a more seasonal, temperate climate with alternating dry and wet periods prevailed in western Mediterranean (Bertini and Martinetto, 2008). Soil formation was hindered by prevailing erosional dynamics during dry intervals (Günster and Skowronek, 2001). One of these, in north-western Sardinia, could be referred to the gravelly deposit that covers the Messinian alterite.…”

Section: General Implications About the Palaeoclimate Conditions And mentioning

confidence: 99%

Weathering Products of a Dismantled Variscan Basement. Minero-Chemical Proxies to Insight on Cretaceous Palaeogeography and Late Neogene Palaeoclimate of Sardinia (Italy)

et al. 2020

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This study compares, for the first time, the mineralogy and geochemistry of two residual-clay deposits in NW Sardinia (Nurra district) that formed at different times in tropical and subtropical climates. Both deposits represent palaeosols with deep-weathered residual profiles and overlie Mesozoic carbonate rocks that were deposited on the south European palaeomargin. The older alterite is Cenomanian-Turonian in age and grades upward into a horizon of karstic bauxite, whereas the younger unit occurs within alluvial deposits of Late Neogene age. The Cretaceous palaeosol represents the precursor of the overlying bauxite and formed from unknown sedimentary parent rocks. In contrast, the Messinian weathering products formed by alluvium that was sourced from the Variscan metamorphic basement. Chemical Index of Alteration values, REE fractionation index values, and the results of R-mode factorial analysis suggest a common initial weathering path and a common precursor for the deposits. However, the latter stages of weathering of the Cretaceous palaeosols resulted in lateritic alteration and bauxite production, whereas weathering of the Late Neogene palaeosols produced 2:1 clay minerals under less extreme conditions. Comparison of these residual products constrains the parental material and weathering trends and allows insight into the relationship between palaeoclimate and regional/local palaeogeography of southern Europe during Upper Cretaceous and during Messinian.

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“…The centre of North America contains a large region of Aridisols, and a mixture of Alfisols (Abbott, 1981) and Vertisols (Mack et al, 2006) along the southern margin. In Europe there is evidence for Alfisols (Icole, 1970;Günster and Skowronek, 2001), Histosols (Basilici, 1997;Bechtel et al, 2003) and extensive Ultisols (Gerasimenko, 1993). At the eastern end of the Mediterranean there was a region of mixed Alfisols (Quade et al, 1994), Oxisols (Kelepertsis, 2002), Ultisols (Paepe et al, 2004) and Vertisols (Graef et al, 1997) (Fig.…”

Section: Late Pliocene Soilsmentioning

confidence: 99%

Late Pliocene lakes and soils: a global data set for the analysis of climate feedbacks in a warmer world

et al. 2014

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Abstract. The global distribution of late Pliocene soils and lakes has been reconstructed using a synthesis of geological data. These reconstructions are then used as boundary conditions for the Hadley Centre General Circulation Model (HadCM3) and the BIOME4 mechanistic vegetation model. By combining our novel soil and lake reconstructions with a fully coupled climate model we are able to explore the feedbacks of soils and lakes on the climate of the late Pliocene. Our experiments reveal regionally confined changes of local climate and vegetation in response to the new boundary conditions. The addition of late Pliocene soils has the largest influence on surface air temperatures, with notable increases in Australia, the southern part of northern Africa and in Asia. The inclusion of late Pliocene lakes increases precipitation in central Africa and at the locations of lakes in the Northern Hemisphere. When combined, the feedbacks on climate from late Pliocene lakes and soils improve the data to model fit in western North America and the southern part of northern Africa.

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Sediment–soil sequences in the Granada Basin as evidence for long- and short-term climatic changes during the Pliocene and Quaternary in the Western Mediterranean

Cited by 31 publications

References 22 publications

Genetic and morphological diversity in <i>Armeria</i> (Plumbaginaceae) is shaped by glacial cycles in Mediterranean refugia

Genetic and morphological diversity in <i>Armeria</i> (Plumbaginaceae) is shaped by glacial cycles in Mediterranean refugia

Weathering Products of a Dismantled Variscan Basement. Minero-Chemical Proxies to Insight on Cretaceous Palaeogeography and Late Neogene Palaeoclimate of Sardinia (Italy)

Late Pliocene lakes and soils: a global data set for the analysis of climate feedbacks in a warmer world

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