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Lake Bonneville and Estimates of Upper Mantle Viscosity. Kevin Kwong & Glynis Jehle. Keith Vaught, “Ancient Shoreline” via Flickr , August 28, 2011 , < http://www.flickr.com/photos/hiker56/444876892/>. Shoreline Measurements Reflecting I sostatic Rebound. Image from GEOCACHING
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Lake Bonneville and Estimates of Upper Mantle Viscosity Kevin Kwong & GlynisJehle • Keith Vaught, “Ancient Shoreline” via Flickr, August 28, 2011 , < http://www.flickr.com/photos/hiker56/444876892/>
Shoreline Measurements Reflecting Isostatic Rebound Image from GEOCACHING Passey 1981 Water
Elevations of Bonneville and Provo Shorelines North and South Profile West and East Profile Passey 1981 Passey 1981
Calculating Viscosity is the viscosity of the substratum in poises f represents the dimensions of the load ρ = 3.4 gcm/3, the density of the substratum g is the acceleration caused by gravity on earth, 9.8 m/s2 k = 1/Tr , time 0f rebound is 4000 yrs Solving for viscosity gave a value of 0.96 x 1021 poises, or 1021 poises