Bowen's Reaction Series | Geological Tactile Image Repository part of External Collection:Tactile Graphics for Geoscience Education
Bowen's reaction series diagram, showing relative temperature ranges of common rock-forming silicate minerals

Relative Dating Exercise | Geological Tactile Image Repository part of External Collection:Tactile Graphics for Geoscience Education
geologic cross-section showing layered and intrusive igneous rocks, unconformities, and a fault designed as an exercise in relative dating

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