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Siccar Point_Devonian Period

Rock & Gem Kids: Geology 101 – Unconformity

By Jim Brace-Thompson Sediments build up in layers, giving us a geological record. An unconformity records a gap in that record. For instance, there may...
Landsat Lena River image

Earth Science in the News: River View, Reconsidering Geologic Age

By Jim Brace-Thompson River Run The rivers coursing over the face of our planet Earth have long been known to be important interfaces for chemical exchanges...

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