Rock magnetics of carbonate systems–investigating palaeodune archives on Fuerteventura (Canary Islands)

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Florian Schneider - , University of Göttingen (Author)
  • Christopher Bastian Roettig - , TUD Dresden University of Technology (Author)
  • Daniel Wolf - , Chair of Physical Geography (Author)
  • Philipp Baumgart - , TUD Dresden University of Technology (Author)
  • Ulrich Hambach - , University of Bayreuth (Author)
  • Dominik Faust - , TUD Dresden University of Technology (Author)

Abstract

The mineral magnetic properties of Pleistocene aeolian dune sands from the island of Fuerteventura (Canary Islands, Spain) were studied in order to reconstruct the palaeoenvironmental evolution of Pleistocene climates during their formation. The palaeodunes on Fuerteventura mainly consist of carbonate sands admixed with dust and material of volcanic origin. Due to the low magnetic background caused by the diamagnetic character of carbonate sands, these archives offer a lot of potential for environmental magnetic studies to detect the imprint of dust, volcanic material and paedogenesis. Four sections of alternating palaeosurface–aeolianite sequences in palaeodune fields have been analysed by means of extensive rock magnetic measurements. These Quaternary archives consist of deposits originating from different sources. I. material blown from the shallow shelf, II. material of volcanic origin, and III. long-range transported dust. The rock magnetic findings enable a more detailed interpretation of the palaeosurfaces within the sequences. We are able to differentiate semiquantitatively between the different source materials on one hand and to distinguish on the other hand those from soil-forming processes. Soil formation is only weakly developed in the dust imprints in the palaeosol aeolianite sequences, linked to sparse vegetation cover during the Pleistocene on Fuerteventura.

Details

Original languageEnglish
Pages (from-to)594-606
Number of pages13
JournalJournal of Quaternary Science
Volume35
Issue number4
Publication statusPublished - 1 May 2020
Peer-reviewedYes

External IDs

ORCID /0000-0002-0772-2984/work/142255900

Keywords

Keywords

  • aeolianite, environmental magnetics, palaeosol, Pleistocene, Quaternary