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Description

HPT Grand Canyon formation (1 hr, 34 min.)

Date

Presenter
Bryan Nickel

Description

Hydroplate Theory Overview part 1 (31 min.)

Date

Presenter
Bryan Nickel

Description

Hydroplate part 2 (27 min.)

Date

Presenter
Bryan Nickel

Description

Hydroplate Theory overview part 3 (24 min.)

Date

Presenter
Bryan Nickel