BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Waterloo Technical Society//WTS Event Manager//EN
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:wts-event-2011-11-09@waterlootechnicalsociety.org
DTSTAMP:20261112T190607Z
DTSTART:20111110T000000Z
DTEND:20111110T021500Z
SUMMARY:WTS - Iowas Manson Impact Structure
DESCRIPTION:Iowas Manson Impact Structure\n\nSeventy-four million years ago
 \, near the end of the Cretaceous Period\, central Iowa lay near the shore
 line of an inland seaway that separated eastern North America from rapidly
  rising mountains to the west. The low-lying Iowa landscape was home to a 
 rich and varied population of plants and animals\, including dinosaurs and
  small mammals. These organisms lived in a fern-rich\, mixed conifer and d
 eciduous forest with a warm\, moist climate much like today’s Gulf Coast
 . The environment dramatically changed when a stony meteorite\, over one m
 ile in diameter\, weighing about 10 billion tons and traveling about 45\,0
 00 miles per hour\, blasted through the atmosphere and crashed to earth. I
 n the fraction of a second that it took the meteorite to penetrate about o
 ne mile into the ground its potential energy was transformed to kinetic en
 ergy\, the equivalent of about 10 trillion tons of TNT. An electromagnetic
  pulse moved away from the point of impact at nearly the speed of light\, 
 and instantly ignited anything that would burn within approximately 130 mi
 les of the impact (most of Iowa). The shock wave toppled trees up to 300 m
 iles away (Chicago\, Minneapolis\, and St. Louis)\, and probably killed mo
 st animals within about 650 miles (Detroit and Denver). The blast left a c
 rater over 24 miles in diameter centered in an area of unimaginable death 
 and destruction. Today there is no surface expression of the crater that e
 xists 100 to 300 feet below the town of Manson (Calhoun County)\, which li
 es near the center of the crater that bears its na me.\n\nSocial: 6:00 PM\
 nDinner: 6:30 PM\nProgram: 7:15 PM\nIowas Manson Impact Structure\nhttps:/
 /WaterlooTechnicalSociety.org/?Action=EventView&ProgramDate=2011-11-09\n
URL:https://waterlootechnicalsociety.org
LOCATION:Clarion Inn
END:VEVENT
END:VCALENDAR