Helen V. Michel

Publications by Year

Research Areas

Archaeology and ancient environmental studies, Geological and Geochemical Analysis, Paleontology and Stratigraphy of Fossils, Geology and Paleoclimatology Research, Astro and Planetary Science

Most-Cited Works

• → Extraterrestrial Cause for the Cretaceous-Tertiary Extinction(1980)3,948 cited
• → Spheroids at the Cretaceous-Tertiary boundary are altered impact droplets of basaltic composition(1983)167 cited
• → Impact Theory of Mass Extinctions and the Invertebrate Fossil Record(1984)162 cited
• → Iridium Anomaly Approximately Synchronous with Terminal Eocene Extinctions(1982)146 cited
• → Current status of the impact theory for the terminal Cretaceous extinction(1982)129 cited
• → The End of the Cretaceous: Sharp Boundary or Gradual Transition?(1984)102 cited
• → The Precursor of the Cretaceous-Tertiary Boundary Clays at Stevns Klint, Denmark, and DSDP Hole 465A(1984)93 cited
• → Iridium Anomalies of Late Eocene Age at Massignano (Italy), and ODP Site 689B (Maud Rise, Antarctic)(1993)85 cited
• → Geochemical anomalies near the Eocene/Oligocene and Permian/Triassic boundaries(1982)56 cited
• → Precise Characterization of Guatemalan Obsidian Sources, and Source Determination of Artifacts from Quiriguá(1983)48 cited