THE ELTVILLE TEPHRA, A LATE PLEISTOCENE WIDESPREAD TEPHRA LAYER IN GERMANY, BELGIUM AND THE NETHERLANDS; SYMPTOMATIC COMPOSITIONS OF THE MINERALS | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

7465674

Reference Type

Journal Article

Title

THE ELTVILLE TEPHRA, A LATE PLEISTOCENE WIDESPREAD TEPHRA LAYER IN GERMANY, BELGIUM AND THE NETHERLANDS; SYMPTOMATIC COMPOSITIONS OF THE MINERALS

Author(s)

Pouclet, A; Juvigne, E

Year

2009

Is Peer Reviewed?

Yes

Journal

Geologica Belgica
ISSN: 1374-8505

Volume

Issue

1-2

Page Numbers

93-103

Language

English

Web of Science Id

WOS:000264266300007

Abstract

A new study of the composition of the Eltville Tephra is performed for the three sites Lixhe/Belgium, Ringen/Germany and Eltville/Germany (previous stratotype). This tephra is a precise stratigraphical marker dated at about 20 ka and intercalated in situ in Upper Weichselien loess in Belgium, The Netherlands and Germany. Since most of the authors have identified the Eltville Tephra after its dark grey colour in yellowish loess body, the correlation has in some cases been doubted so that geochemistry of the material should be used to take position. We analyse the pyroclasts and the mafic minerals of the tephra (clinopyroxene, olivine and amphibole). The volcanic glass is totally altered to illite, but the minerals show a clear basaltic alkaline magmatic signature. The tephra resulted from a strong initial explosive activity of a basaltic volcano. The origin of the tephra would be the East Eifel volcanic field.

Keywords

Europe; Belgium; Germany; East Eifel; Quaternary; Upper Weichselien; Eltville Tephra; widespread tephra layer; tephrochronology