Impact spherules as a record of an ancient heavy bombardment of Earth

Chromium-isotopes in Late Eocene impact spherules indicate a likely asteroid belt provenance

(2011) Frank T. Kyte et al.   EARTH AND PLANETARY SCIENCE LETTERS

Paraburdoo spherule layer (Hamersley Basin, Western Australia): Distal ejecta from a fourth large impact near the Archean-Proterozoic boundary

(2011) Scott W. Hassler et al.   GEOLOGY

Nonuniform cratering of the Moon and a revised crater chronology of the inner Solar System

(2011) Mathieu Le Feuvre et al.   ICARUS

Formation of spherules in impact produced vapor plumes

(2011) B.C. Johnson et al.   ICARUS

Dynamical erosion of the asteroid belt and implications for large impacts in the inner Solar System

(2009) David A. Minton et al.   ICARUS

Geochemistry of 2.63–2.49Ga impact spherule layers and implications for stratigraphic correlations and impact processes

(2009) Bruce M. Simonson et al.   PRECAMBRIAN RESEARCH

Carbonate accretionary lapilli in distal deposits of the Chicxulub impact event

(2008) T. E. Yancey et al.   GEOLOGICAL SOCIETY OF AMERICA BULLETIN

Correlating multiple Neoarchean–Paleoproterozoic impact spherule layers between South Africa and Western Australia

(2008) Bruce M. Simonson et al.   PRECAMBRIAN RESEARCH