Schematic Maps and Cross Sections of Intrusion of Birch Creek Pluton, Nos. 4-6.
Black polygon outlines eventual outcrop area of pluton. Green/Gray = Wyman Formation; Yellow = Reed Formation; Blue = Deep Spring Formation; Orange = Campito Formation; Red = granite. A-A' is line of cross section. Horizontal line is present level of erosion.
|4. Granite continued to expand upward and into the core of the pluton, further overturning and stretching the Reed Formation.||5. Granite filled its eventual space.||6. Map of the present form of the pluton and the deformed rock units in the anticline.|