Timothy Berge, Consultant Geophysicist

Stereographic Projection

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These 2 spreadsheets are to make Stereographic projections using either the Wulff Equal-Angle or the Schmidt Equal-Area methods. Stereographic projection plots are commonly used in Structural Geology to measure and understand the relationships between elements such as bedding attitude, fold axes, planar cleavage, rotation and display of dipmeter data, multiple structural deformations, and other uses. The Schmidt Equal-Area method is commonly used for measuring and contouring point density. The Wulff Equal-Angle method has the property of preserving specific angles between features and is commonly used for measuring angles between structural elements.

click here to download Schmidt Equal-Area method Stereographic Projection software

click here to download Wulff Equal-Angle method Stereographic projection software

Tim Berge Consultant Geophysicist* 2036 Ogden St.*Denver* USA * 80205 Phone: (303) 894-8811 email: tbberge@hotmail.com

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