The Great Unconformity- Pipestone, a sort of Unakite of Siltstone Egg 58 x 44 mm, 2 1/4x 1 3/4 in Though found around the world, this material is from Payson, Arizona the sandstone is about 500 million years old, the Granite is about 1.6 billion yrs old, a gap of 1.1 billion years mts were uplifted, and eroded down. The gap of time is the “Great Unconformity” or the line between the different rock types.
The Great Unconformity- Pipestone, a sort of Unakite of Siltstone Egg 58 x 44 mm, 2 1/4x 1 3/4 in Though found around the world, this material is from Payson, Arizona the sandstone is about 500 million years old, the Granite is about 1.6 billion yrs old, a gap of 1.1 billion years mts were uplifted, and eroded down. The gap of time is the “Great Unconformity” or the line between the different rock types.
