Chesapeake Bay Impact Crater: What, Where, How, & Effects - David S. Powars, USGS
1:00:49
The North American Craton: its tectonic growth and mineral endowment - Patrick Rowe
1:49:39
Pegmatites - Earth's Most Amazing Rocks - with Michael Wise, Ph.D.
1:39:23
Nick Zentner - J Harlen Bretz and the Ice Age Floods: New Discoveries
45:06
GIFT2011: The delicate balance between Chicxulub impact and/or Deccan traps
32:15
Explore Mysterious Rivers On The Deep Seafloor
1:21:58
Biominerals, their crystallography, and more updates from the Smithsonian NMNH – Dr. Gabriela Farfan
1:05:22
Mount Rainier Geology
1:20:43