charred tree trunk (IMAGE) Johannes Gutenberg Universitaet Mainz Caption Verkohlter Baumstamm in den Ablagerungen des Laacher-See-Vulkanausbruchs: Für die genaue Datierung der Eruption waren die vereinzelt zu sehenden Jahrringe der Probe entscheidend. Credit Foto/©: Olaf Jöris Usage Restrictions This image may only be used in connection with the press release "Eruption of the Laacher See volcano redated", issued by Johannes Gutenberg University Mainz on July 1, 2021. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.