New aspects of the interpretation of the loess magnetic fabric, Cérna Valley succession, Hungary

Balázs Bradák-Hayashi, T. Bíró, E. Horváth, Tamás Végh, Gábor Csillag

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Anisotropy of magnetic susceptibility (AMS) is a frequently applied method in sedimentology, especially in the determination of the orientation of transport processes. We present an analysis of magnetic fabric (MF) studies on loess. New aspects of fabric development reveal: i) The deposition of the aeolian sediments was controlled by gravity, low-energy transport and local geomorphology, hence no clarified wind direction can be defined. ii) The influence of phyllosilicates is also significant among the magnetic components. iii) While the primary MF is relatively well-defined, the secondary MF is influenced by several processes. The analysis of stereoplots combined with the q–β diagram and photostatistics showed encouraging results during the characterization of various secondary MF such as redeposited MF and pedogenic fabric. iv) Changes in processes from aeolian to water-lain deposition and the increasing transportation energy were reflected by the connection between AMS and observed micro-scale sedimentary features. v) A relationship was obvious between the degree of pedogenesis and the transformation of sedimentary MF into a vertical MF typical for paleosols. vi) The significant role of very fine grained magnetite on the formation of inverse MF could not be excluded.

Original languageEnglish
Pages (from-to)348-358
Number of pages11
JournalQuaternary Research (United States)
Volume86
Issue number3
DOIs
Publication statusPublished - Nov 1 2016

Fingerprint

magnetic fabric
loess
valley
magnetic anisotropy
sedimentary feature
Hungary
Loess
pedogenesis
phyllosilicate
sedimentology
paleosol
transport process
wind direction
geomorphology
energy
magnetite
diagram
gravity

Keywords

  • Directional fabric
  • Image analysis
  • Magnetic fabric
  • Microfabric
  • Micromorphology
  • Photostatistics
  • Visible grain fabric

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Earth-Surface Processes
  • Earth and Planetary Sciences(all)

Cite this

New aspects of the interpretation of the loess magnetic fabric, Cérna Valley succession, Hungary. / Bradák-Hayashi, Balázs; Bíró, T.; Horváth, E.; Végh, Tamás; Csillag, Gábor.

In: Quaternary Research (United States), Vol. 86, No. 3, 01.11.2016, p. 348-358.

Research output: Contribution to journalArticle

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