6533b853fe1ef96bd12acc92
RESEARCH PRODUCT
Evidence of tephra reworking in loess based on 2D magnetic susceptibility mapping: A case study from Rocourt, Belgium
Adrien JacototAnne-véronique Walter-simonnetGwénolé JouannicGwénolé JouannicJean Pierre SimonnetGilles Bossuetsubject
010506 paleontologygeographygeography.geographical_feature_category010504 meteorology & atmospheric sciencesGeochemistryHigh resolution01 natural sciencesMagnetic susceptibilityVolcanoLoess[SDE]Environmental SciencesPhenocrystTephraGeomorphologyGeologyComputingMilieux_MISCELLANEOUS0105 earth and related environmental sciencesEarth-Surface Processesdescription
Abstract In this article, a new and original approach to characterize tephra layers based on high resolution magnetic susceptibility (MS) mapping is applied to the tephra deposits of Rocourt (Belgium). A series of MS maps of selected sections show the 3D morphology of tephra horizons, including local dip and reworked structures of the Rocourt and Eltville tephras, proven by chemical analyses of phenocrysts. At Rocourt, tephras are observed in loess which is an excellent material for testing the efficiency of the magnetic susceptibility mapping of tephra deposits. We also attempted to locate the volcanic source of the Eltville tephra based on the spatial analysis of the thickness of deposits in the region. Our results confirm the previous hypothesis of a volcano source located close to Plaidt (Rheinland-Pfalz, Germany).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-02-01 |