50:59

Geology 12 (Earthquakes and Earth's Interior)

18:31

Rock Identification with Willsey: Intro to Metamorphic Rocks!

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CRITÈRES de RECONNAISSANCE d'une MÉTÉORITE.

55:52

Larry Meinert - Exploration for skarn deposits

29:01

Geology 101 with Willsey, Episode#16: Metamorphic Rocks

41:53

Geology 6 (Origins of Lava and Magma)

21:41

Rock Identification with Willsey: Foliated Metamorphic Rocks - Slate, Phyllite, Schist, and Gneiss

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Geology 16 (Mountains)