Earth's impact events through geologic time: a list of recommended ages for terrestrial impact structures and deposits

M Schmieder, DA Kring - Astrobiology, 2020 - liebertpub.com
This article presents a current (as of September 2019) list of recommended ages for proven
terrestrial impact structures (n= 200) and deposits (n= 46) sourced from the primary …

High-resolution EBSD and SIMS U–Pb geochronology of zircon, titanite, and apatite: insights from the Lac La Moinerie impact structure, Canada

M McGregor, TM Erickson, JG Spray… - … to Mineralogy and …, 2021 - Springer
High-resolution electron backscattered diffraction (EBSD) and correlated in situ secondary
ion mass spectrometry (SIMS) U–Pb geochronology have been conducted on impact …

[HTML][HTML] First finding of impact cratering in the Korean Peninsula

J Lim, SS Hong, M Han, S Yi, SW Kim - Gondwana Research, 2021 - Elsevier
Abstract The 7 km-diameter Jeokjung–Chogye Basin in Hapcheon, southeastern Korean
Peninsula, is well-known for its bowl-shaped geomorphology. Here we report the first direct …

[HTML][HTML] Zircon (U-Th)/He impact crater thermochronometry and the effects of shock microstructures on He diffusion kinetics

CH Ross, DF Stockli, T Erickson, SPS Gulick - … et Cosmochimica Acta, 2024 - Elsevier
Accurate age determination of impact cratering events remains difficult and controversial.
Less than a quarter of all documented impact craters are regarded as accurately and …

Dendritic reidite from the Chesapeake Bay impact horizon, Ocean Drilling Program Site 1073 (offshore northeastern USA): A fingerprint of distal ejecta?

AJ Cavosie, MB Biren, KV Hodges, JA Wartho… - …, 2021 - pubs.geoscienceworld.org
High-pressure minerals provide records of processes not normally preserved in Earth's
crust. Reidite, a quenchable polymorph of zircon, forms at pressures> 20 GPa during shock …

[HTML][HTML] Radiocarbon age anomalies in post-impact lake sediments of the Hapcheon impact crater, Korea and their implication for crater evolution

J Lim, S Yi, S Park, A Jung, Y Kim, SW Kim - Quaternary Geochronology, 2025 - Elsevier
Impact craters caused by meteorite collisions are phenomena that dramatically alter the
Earth's surface and disturb the natural carbon cycle in subsequent sedimentary …

Spatial U-Pb age distribution in shock-recrystallized zircon–a case study from the Rochechouart impact structure, France

C Rasmussen, DF Stockli, TM Erickson… - … et Cosmochimica Acta, 2020 - Elsevier
Age determination of impact structures via the zircon U-Pb system remains challenging and
often ambiguous due to highly variable effects of shock metamorphism on U-Pb …

Bolide impact effects on the West Florida Platform, Gulf of Mexico: end Cretaceous and late Eocene

CW Poag - Geosphere, 2022 - pubs.geoscienceworld.org
This study documents seismic reflection evidence that two different bolide impacts
significantly disrupted stratigraphic and depositional processes on the West Florida Platform …

An (U-Th)/He age for the small Monturaqui impact structure, Chile

IA Ukstins, JA Wartho, NA Cabrol, EA Grin… - Quaternary …, 2022 - Elsevier
Abstract Single-crystal (U-Th)/He dating of 32 apatite and zircon crystals from an impact
breccia yielded a weighted mean age of 663±28 ka (n= 3; 4.2% 2σ uncertainties) for the …

[PDF][PDF] Dendritic reidite from the Chesapeake Bay impact horizon

AJ Cavosie - Ocean Drilling Program Site, 2021 - researchgate.net
High-pressure minerals provide records of processes not normally preserved in Earth's
crust. Reidite, a quenchable polymorph of zircon, forms at pressures> 20 GPa during shock …