Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine settingOPEN ACCESS 

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Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark MAPS, Version of Record online: 11 March 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Tvären structure in southeastern Sweden has…

Shock deformation and U-Pb isotope systematics in zircon from impactites of the Rochechouart impact structure: Impact age and zircon provenance

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Daniela Guerrero, Wolf Uwe Reimold, Natalia Hauser, Gavin Kenny, Martin Whitehouse, Philippe Lambert Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 31 May 2025 LINK “The >23 km diameter, ∼207 Ma old Rochechouart impact structure is…

Documentation of shock features in impactites from the Dhala impact structure, India

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Jayanta Kumar Pati, Michael H. Poelchau, Wolf Uwe Reimold, Norihiro Nakamura, Yutaro Kuriyama, Anuj Kumar Singh Meteoritics & Planetary Science First Published: 11 August 2019 LINK “The fundamental approach for the confirmation of any terrestrial…

The Cretaceous/Paleogene (K-Pg) boundary at the J Anomaly Ridge, Newfoundland (IODP Expedition 342, Hole U1403B).

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Loroch, D., Deutsch, A., Berndt, J. and Bornemann, A. Meteoritics & Planetary Science. doi: 10.1111/maps.12667 LINK “We present results of an in-situ geochemical study using laser-ablation inductively coupled plasma–mass spectrometry (LA-ICP-MS) analyses along a ~4.3…

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