The Geologic Story of Jackson Hole & NW Wyoming

January 4th (Tuesday), 6 p.m Mountain time ., Via Zoom (online) only
Presentation: “The Geologic Story of Jackson Hole & NW Wyoming”,
Presented by John Hebberger Jr, Geologists of JH

Northwestern Wyoming, and Jackson Hole in particular, is one of the most beautiful places on
earth. It is visited by millions each year. What most do not recognize is that ALL of what one sees &
wonders at is a result of major geologic events that occurred through 2.7 billion years of earth
history. Clear evidence is seen for more major geologic events, the ones that formed this place,
than in any other comparably sized area on earth.

Our area is a result of and evidence can be seen for: 1)) The earliest known “Himalayan Style”
continental collision event; 2)) The break-up of the super continent that existed BEFORE the Pangea
super continent; 3)) 500 million years of Wyoming’s existence at & near sea level; 4)) The
continental scale compressional event that formed nearly ALL of Wyoming’s towering mountains &
deep basins; 5)) A major volcanic event that today we see evidence of with the Absaroka
Mountains; 6)) The advent of the Yellowstone volcano which migrated from the ID-NV-OR states’
borders to its present location just north of Jackson Hole; 7)) Onset of the continental scale
extensional event which formed the American West’s “Basin & Range” province, and which is
forming the Teton Range and Jackson Hole today; 8)) Continental scale uplift & resultant major
erosion of the landscape; 9)) Major glacial episodes, from alpine style valley glaciers to a quasi-
continental style of ice sheet that entirely filled Jackson Hole.

A place like no other on earth, the audience will much better be able to appreciate it as a result of
this presentation.

Topic: The Geologic Story of Jackson Hole & NW Wyoming – John Hebberger Jr.
Time: Jan 4, 2022 06:00 PM Mountain Time (US and Canada)
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Meeting ID: 878 4292 7889
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