Opportunities and challenges for paleoaltimetry in "small" orogens: insights from the European Alps

Many stable isotope paleoaltimetry studies have focused on paleoelevation reconstructions of orogenic plateaus such as the Tibetan or Andean Plateaus. We address the opportunities and challenges of applying stable isotop
Many stable isotope paleoaltimetry studies have focused on paleoelevation reconstructions of orogenic plateaus such as the Tibetan or Andean Plateaus. We address the opportunities and challenges of applying stable isotope paleoaltimetry to “smaller” orogens. We do this using a high‐resolution isotope tracking general circulation model (ECHAM5‐wiso) and explore the precipitation δ18O (δ18Op) signal of Cenozoic paleoclimate and topographic change in the European Alps. Results predict a maximum δ18Op change of 4–5‰ (relative to present day) during topographic development of the Alps. This signal of topographic change has the same magnitude as changes in δ18Op values resulting from Pliocene and Last Glacial Maximum global climatic change. Despite the similar magnitude of the isotopic signals resulting from topographic and paleoclimate changes, their spatial patterns across central Europe differ. Our results suggest that an integration of paleoclimate modeling, multiproxy approaches, and low‐elevation reference proxy records distal from an orogen improve topographic reconstructions.
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Metadaten
Author:Svetlana Botsyun, Todd A. Ehlers, Sebastian G. Mutz, Katharina Methner, Emilija Krsnik, Andreas Mulch
URN:urn:nbn:de:hebis:30:3-564723
DOI:http://dx.doi.org/10.1029/2019GL086046
ISSN:1944-8007
ISSN:0094-8276
Parent Title (German):Geophysical research letters
Publisher:Wiley
Place of publication:Hoboken, NJ
Document Type:Article
Language:English
Date of Publication (online):2020/02/10
Year of first Publication:2020
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2020/10/28
Tag:European Alps; GCM; isotope tracking model; paleoaltimetry; paleoclimate; sable water isotopes
Volume:47
Issue:e2019GL086046
Pagenumber:10
HeBIS PPN:472530070
Institutes:Geowissenschaften
Biodiversität und Klima Forschungszentrum (BiK-F)
Dewey Decimal Classification:550 Geowissenschaften
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0

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