Geology 101 with Willsey, Episode #1: Intro to Earth
28:36
Geology 101 with Willsey, Episode #2: Intro to Plate Tectonics
24:25
Rock Identification with Willsey: BASALT and its many varieties
26:05
Geology 101 with Willsey, Episode #3: Divergent Plate Boundaries
34:34
The Tortured History of Earth's Oldest Rocks w/Jesse & Chris from PlanetGEO! (PT 1)
43:36
How Geologists Discovered and Mapped a Great Seaway
19:26
Minerals with Willsey: Olivine, Pyroxene, and Amphibole
16:17
One of The Rarest Rocks on Earth
24:49