The Carolina Bays and a variety of other interesting scientific topics
Podcast CB022 - Books about the Carolina Bays
Studying geology and astronomy after retirement led to the publication of several books about the Carolina Bays and a peer-reviewed publication.
Podcast YD022 - Younger Dryas Ejecta Curtain
Examination of the geological traces left on a variety of terrains by the secondary impacts of ice boulders ejected by an extraterrestrial impact on the Laurentide Ice Sheet.
Podcast YD021 - Younger Dryas Flooding
Discussion of the flooding associated with the meteorite impact 12,900 years ago. The story is complicated because there were several meltwater pulses at the end of the Ice Age.
Podcast YD020 - Cycle of Cosmic Catastrophes
A book published in 2006 proposed that a cosmic chain of events culminated in the extinction of the megafauna approximately 13,000 years ago. This book established what was later called the Younger Dryas Impact Hypothesis.
Podcast CR002 - Greenland Crater under the Hiawatha Glacier
This presentation discusses the 31-kilometer impact crater beneath Hiawatha Glacier in northwest Greenland that may have formed at the onset of the Younger Dryas cooling event.
Podcast GE004 - Structural Geology and the Carolina Bays
Structural geology measures the geometry of present-day geological formations to determine the history of deformation and understand the stress field that resulted in the observed characteristics.