Marli De Jongh - Scotland

Marli is a current BSc Earth Science student in her final year as an undergraduate at the University of Glasgow. During her time at university, Marli has been specifically interested in planetary geology which led to her final year research project which focused on impactites.

Throughout her undergraduate degree, Marli has shown interest in a variety of fields within Earth Science. In 2015, Marli travelled to Peru to work as a research assistant within the remote regions of the Pacaya-Samiria Reserve. This involved data collection and monitoring of local animals including dolphins, monkeys and caiman. Marli has also shown interest in igneous petrology and volcanology during her time at university. In 2016, she completed an internship with GeoTenerife, in collaboration with INVOLCAN, which involved gas sampling on the island of La Palma and crater of Mount Teide.

Marli is currently studying for her final year exams and looking for more opportunities to broaden her experiences within the field of Earth Science. When Marli is not studying, she enjoys hill walking and camping.

Shocked suevites from the Ries crater: Insights into the dynamics of hypervelocity impacts

The Ries structure in Germany was first recognised as an impact crater after the discovery coesite and stishovite in the 1960s and is regarded as a type of locality for suevite (French & Koeberl, 2010). Suevite is a polymict impact breccia which has been a subject to shock metamorphism (Stöffler & al 2013). It is also the most controversial impractite found in impact structures and its genesis is poorly understood.

To determine how suevite forms, it is essential to increase the current understanding of hypervelocity impacts. This can be achieved by assessing the homogeneity of shock across suevite samples. Optical Microscopy, Scanning Electron Microscopy (SEM) and Raman Spectroscopy were used to assess the degree of shock across samples. Preliminary results suggest that the degree of shock across suevite samples is not homogeneous, implying suevite genesis is likely to be a variable, multistep process involving complex modes of transportation from different parts of the crater.

 

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