A new high-precision 40Ar/39Ar age for the Rochechouart impact structure: At least 5 Ma older than the Triassic–Jurassic boundaryOPEN ACCESS
Cohen, Benjamin E., Mark, Darren F., Lee, Martin R., Simpson, Sarah L. Meteoritics & Planetary Science 10.1111/maps.12880 Available online 16 May 2017 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The Rochechourt impact structure in south-central France,…