This book provides a general introduction to impact stratigraphy, with emphasis on the recognition of distal impact ejecta in the field, by focusing on the impactoclastic layers of the Umbria-Marche sequence in Central Italy, with an almost perfect stratigraphic record over the last 200 Million years. A general introduction to impact cratering and a discussion of distal ejecta and impact layers around the world is followed by a detailed description of the record of the impact of extraterrestrial bodies in sediments of the Umbria-Marche Apennines. The volume is of interest to a diverse audience in the geological and planetary sciences, ranging from (upper) undergraduate to research level. This book can also be used by students and researchers as a field guide to some of the most important Italian impact layers.

Great introduction to impact stratigraphy aimed at wide audience

Autorentext

Alessandro Montanari worked in the H.E.S.S. Collaboration at the Irfu/DPhP institute in CEA-Saclay (France) during his Ph.D. studies and the Landessternwarte institute at ZAH, Heidelberg University (Germany) for a Post-doctoral position. He analyzed observational datasets from the H.E.S.S. array, which consists of 5 Imaging Atmospheric Cherenkov Telescopes (IACTs), to obtain constraints on Dark Matter (DM) models and Fermi Bubbles (FBs) emission. He published results on DM in Phys. Rev. Lett. 129, 111101 (2022) and on FBs in PoS (ICRC2021) 791. He also searched for DM towards unidentified Fermi-LAT objects and published results in Astrophys. J. 918, 17 (2021). He contributed to presenting a comprehensive picture of the detection prospects with IACTs for specific particle DM model realizations in Phys. Rev. D 107, 043028 (2023) and velocity-dependent DM models in Phys. Rev. D 108, 083027 (2023). Emmanuel Moulin is Research Director at the Irfu/DPhP Institute at CEA, University Paris-Saclay, France. He has worked in gamma-ray astronomy since 2005 with the H.E.S.S. collaboration and the CTA consortium. He has served as a physics convener for fundamental physics/dark matter working groups, a member of the H.E.S.S. observing committee, and on publication boards for H.E.S.S. and CTA. As a CEA expert in astroparticle physics and gamma-ray astronomy, he is deeply involved in Galactic Center observations, including the H.E.S.S. inner Galaxy survey. He is the main author of the discovery paper of the first Galactic Pevatron and is currently searching for TeV emission at the base of the Fermi Bubbles. He has performed dark matter searches in various astrophysical environments, including the inner Galactic halo, dwarf galaxy satellites, Galactic subhalos, Galactic globular clusters, and nearby galaxy clusters. He was the main editor of the CTA dark matter program published in 2018 and has published over 40 papers as a main author, including three in Physics Review Letters and one in Nature.

Inhalt
Introduction: Impact cratering as a geological process.- Distal ejecta and tektites.- Important distal ejecta layers and their source craters.- The umbria-marche sequence.- Impact stratigraphy in the U-M sequence.- Documentation and laboratory techniques.