1. Without precise control of generation and frequency, undesired tie - line flows will result.

2. The major tie-line pyrrhotite-tungsten differentiates this system from the analogous Fe-Mo-S system.

3. At points on the tie-line between X and Y the saturated solutions coexist in equilibrium.

4. Existing gravity, Aeromagnetic, elevation, density and magnetic susceptibility, and well log data were used to construct models along seven northwest-southeast profiles across the Waukesha Fault and one north-south profile that serves as “Tie Line” for the other profiles (Figure 1).