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Loess-like and palaeosol sediments from Lanzarote (Canary Islands/Spain) —Indicators of palaeoenvironmental change during the Late Quaternary

URN zum Zitieren dieses Dokuments: urn:nbn:de:bvb:703-opus-5770

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von Suchodoletz, Hans ; Kühn, Peter ; Hambach, Ulrich ; Dietze, Michael ; Zöller, Ludwig ; Faust, Dominik:
Loess-like and palaeosol sediments from Lanzarote (Canary Islands/Spain) —Indicators of palaeoenvironmental change during the Late Quaternary.
Bayreuth , 2009

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Abstract

On Lanzarote (Canary Islands) Quaternary Saharan dust and weathered local volcanic material were trapped in Miocence to Pliocene valleys dammed by younger volcanic edifices. These sediments show sequences of alternating reddish/clayey and loess-like yellowish/silty material. In order to investigate if reddish/clayey layers contain material derived from local pedogenesis and if so, which pedogenetic processes were active, we performed sedimentological, micromorphological and environmental magnetic analyses. The analyses demonstrate that these layers contain material derived from local soils. These soils were characterised by clay formation, rubefication and the formation of superparamagnetic particles during periods of enhanced soil moisture. Thus, they can serve as natural archives in order to reconstruct the terrestrial palaeoclimatic history of Lanzarote. The distribution of soil material in the profiles shows that cold periods of the Late Quaternary were characterised by more humid conditions than today. Using palaeontological remains and a comparison with recent soils on Tenerife, we can roughly estimate maximal palaeoprecipitation values during more humid periods.

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Publikationsform: Preprint, Postprint, Working paper, Diskussionspapier
Zusätzliche Informationen (öffentlich sichtbar): Source: Palaeogeography, Palaeoclimatology, Palaeoecology(2009) volume 278, 71-87 doi:10.1016/j.palaeo.2009.03.019
Keywords: Kanarische Inseln; Sahara; Bodenbildung; Pleistozän; Paläoklima; Umweltmagnetik; Paläoumweltrekonstruktion; Staub; Saharan dust; Canary Islands; Pleistocene; palaeoclimate; pedogenesis
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Sprache: Englisch
Titel an der UBT entstanden: Ja
URN: urn:nbn:de:bvb:703-opus-5770
Eingestellt am: 25 Apr 2014 10:12
Letzte Änderung: 22 Mai 2014 08:31
URI: https://epub.uni-bayreuth.de/id/eprint/515