Montag, 02. Dezember 2013, 16:30 - 17:30 iCal

Aktuelle Themen in den Umweltgeowissenschaften III

Guest lecturer: Ao.Univ.Prof. Dipl.-Ing. Dr.techn. Thomas Prohaska.

Title: The potential of isotopic research in analytical ecogeochemistry

Eberhard Clar-Saal (2B 204), Center for Earth Sciences
Althanstrasse 14, UZA II, 1090 Wien

Seminar, Workshop, Kurs

Analytical Ecogeochemistry can be defined as field of research, which deals with the development and application of analytical tools to study biotic and abiotic components and their interactions within ecosystems and between ecosystems in time. Isotopic systems have been widely applied to study these processes but nonetheless, new isotopic systems are increasingly investigated and the analytical process is still challenging in order to obtain reliable and accurate results. As a consequence, both the natural variation of the isotopic composition as well as the application of enriched spikes provide essential tools.

This paper will focus on the use of isoscapes (isotopic landscapes), which are spatially depicted distributions of isotopic compositions usually produced by using Geographic Information Systems. In this context, isoscapes are used to predict the provenance of agricultural goods or the interpretation of mobility and migration in biological systems. A comprehensive approach for the use of Sr isoscapes in terrestrial and acquatic ecosystems will be discussed on the example of the Sr isotopic system together with the need for accurate and reliable data and limits arising from measurement uncertainties.




Andreas Gondikas
Universität Wien
0043 1 4277 53371