ATTENTION

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Useful Figures

Topographic Maps Help Sheet: This help sheet discusses Latitude and Longitude and provides overall guidance for the lab.

Structure of the Earth: Details the layers of both strength and chemistry, the depths at which layer separations occur, and the thicknesses of the types of crust.

Common Metamorphic Rocks: Once you figure out rock type (gneiss, etc.), typical minerals and textures, then you can ID the protolith (parent rock) and then from there you can get the facies (P and T conditions).

Bowen's Reaction Series: Created by N. L. Bowen, this curve will tell you the order in which minerals should crystallize. Remember, the left side is the discontinuous reaction series and the right is the continuous reaction series.


Facies Diagram: Pressure-Temperature-Depth: The regions tell the facies, and the P and T can be read off the diagram. On the diagram you see three words I have written. Those are the regions of stability (where you will find) kyanite, sillimanite, and andalusite. Above the minimum curve for melting, metamorphism CAN change to igneous processes (since metamorphism means change within the solid state and when liquid is involved, this is now the domain of igneous processes).