Geology of Colorado (Boulder Valley) - Field Trip #1, Stop #2: Pre-Cambrian Granites

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Stop #2 (10:30 a.m.): Sitting at the base of the Fountain formation in boulders from the Fountain. Across the road behind Emmett is 1.6-1.7 billion year old Pre-Cambrian granite. The granite uplifted and weathered, then the sands of the Fountain formation were deposited on top of this.
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Stop #2 (10:30 a.m.): Sitting at the base of the Fountain formation in boulders from the Fountain. Across the road behind Emmett is 1.6-1.7 billion year old Pre-Cambrian granite. The granite uplifted and weathered, then the sands of the Fountain formation were deposited on top of this.