Seismic Sleuths - page 101

M A S T E R P A G E
Figure 3, Sag pond 1857
Fault moves, offsetting shorelines of sag pond and organic materials (peat) on bottom.
Figure 4, Sag pond 1994
Shortly after the faulting, a new sag pond forms with more reeds, cattails, and algae. Peat continues to
accumulate. In 1994 the sag pond is pumped dry, and a shallow trench (A-B) is dug with excavation equipment
perpendicular to the fault. A sketch of one side of the trench is reproduced below (see Figure 5).
Figure 5, Trench Log 1, 1994
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