Aim of the open session is to create a multidisciplinary platform, where presentations which include studies on systematics in stable isotopes or studies which use stable isotopes as a tool, can be presented if no specialized session is organized elsewhere in the EGU General Assembly program.

The open session part includes a block of special interest on:
- Isotopes and Isoscapes as Tool for Forensic Provenancing
The session aims to provide a forum for isotope based climate and geochemistry related mapping and modelling work and how this is or can be combined with applied provenancing casework be it in the context of archaeology, crime investigation, food authenticity, ecology, environmental forensics or wildlife forensics. The conveners therefore invite contributions on light and heavy isotope and instrumental and analytical approaches, theoretical consideration and discussion of actual research and casework.
- Stable Isotope Analysis by Optical Spectrometry.
In recent years optical stable isotope ratio analyzers have seen a tremendous increase in end-user acceptance and ever-wider application in both laboratory and field studies. Here we provide a podium for new developments in this field, whether it concern the optical technology or its interfacing to peripheral equipment, as well as specific demonstration or intercomparison studies.
- Radiogenic isotopic systems.
An ever increasing number of radiogenic isotopic systems are used in geosciences to obtain quantitative information on the nature, rates and tempo of processes. This block of interest session aims to bring together the various techniques and applications in this field.