Imaggeo On Monday: the EGU Photo Competition – beautiful thin-sections.

Imaggeo On Monday: the EGU Photo Competition – beautiful thin-sections.

In 2010 EGU held our first annual Photo Competition at the General Assembly in Vienna. Since then hundreds of photos have been shared on imaggeo by geoscientists and researchers just like you, with a lucky few being selected each year to be highlighted during the meeting and voted on by our members.


These images can be of anything to do with geology or geoscience – we get many beautiful landscape images, but you can also upload laboratory images, fieldwork images, hand samples or microscope images; even videos! The winners are awarded a free registration to the EGU General Assembly the following year and you can share an image taken at any time – they don’t have to be just from the last year – we even accept historical images, as long as you have the rights to share them! For more information visit the 2021 Photo Competition announcement page.


As we have said above, your photos can be of anything – one of our finalists in 2018 was this stunning photomicrograph of a belemnite cross-section, taken through a microscope under crossed polarised light by Rene Hoffmann! Do you have a photo like this you want to share with the geosciences community?! Submit it online to the 2021 Photo Competition today!


Belemnites are the backbone for the reconstruction of Jurassic-Cretaceous seawater properties like temperature. Here you see an image of a thin section of such an belemnite (Gonioteuthis, Upper Cretaceous, NW-Germany) under crossed polarizers. Clearly one can recognize the calcite fibre-bundles the belemnite is made of.

Description by Rene Hoffmann


Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and videos to this repository and, since it is open access, these images can be used for free by scientists for their presentations or publications, by educators and the general public, and some images can even be used freely for commercial purposes. Photographers also retain full rights of use, as Imaggeo images are licensed and distributed by the EGU under a Creative Commons licence. Submit your photos at

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Hazel Gibson is Head of Communications at the European Geosciences Union. She is responsible for the management of the Union's social media presence and the EGU blogs, where she writes regularly for the EGU's official blog, GeoLog. She has a PhD in Geoscience Communication and Cognition from the University of Plymouth in the UK. Hazel tweets @iamhazelgibson.

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