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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-6833
DTSTART:20220127T150000Z
DTEND:20220127T160000Z
DTSTAMP:20260414T153718Z
LAST-MODIFIED:20220124T170526Z
LOCATION:Wisconsin Institute of Discovery\, Orchard Room
SUMMARY:Earth’s early years: Maybe not so Hadean after all\, Public 
 Research Seminar\, NIcolle Zellner\, Albion College
DESCRIPTION:The first several hundred million years of Earth’s histo
 ry are mysterious yet often characterized by heavy bombardment and gen
 erally hot and hellish conditions\, the very essence of a Hadean envir
 onment. Evidence to the contrary exists\, however\, including terrestr
 ial zircons that suggest the presence of water\, land masses\, and eve
 n a proposed biosphere. New investigations of the impact flux in the E
 arth-Moon system during this time period and into the Archean are refi
 ning our interpretations of the nature and extent of this bombardment.
  For example\, recent advances in analyzing and interpreting lunar (an
 d other) impact sample data are allowing us to better understand how i
 mpacts may have influenced Earth’s geological activities and whether
  or not Earth’s early life ever experienced an “impact frustration
 ” that would have hindered its evolution. Results from multiple stud
 ies across multiple disciplines will be presented in an integrated man
 ner that holistically provides new interpretations for understanding s
 ignificant biological and geological events in Earth’s first billion
  years.<br>
\n<br>
\nWeb Link:<br>
\nhttps://uwmadison.zoom.us/j/97022
 179511?pwd=MTRQKzVFWW1IMnRwMFlnRWRXNWFzUT09
URL:https://www.physics.wisc.edu/events/?id=6833
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