1. The Great Salt Lake as a Paleoclimate Indicator Morgan Rosenberg John Solder

2. Rock Evidence from Cores Percent Sand Lower lake level = higher sand concentration Dry Conditions Higher lake level = lower sand concentration Wet Conditions Percent Carbonate Lower lake level = higher percentage of carbonate Warmer and Drier Climate Conditions Higher lake level = lower percentage of carbonate Cooler Conditions Charcoal – If present, wet climate Patrickson, 2010.

3. Global Climate Setting Evidence that global climate change is synchronous with changes in glacial coverage Ice Rafting into the North Atlantic 5-10 k.y.a. World wide temperature abruptly increased at the end of each event Lake regression U1, U2, U3, are correlated to ice rafting events c, b, a respectively. The Stansbury ossicilation, post- Provo regression, and the post- Gilbert regression coincide with the H1, H2 Heinrich Events, and Younger Dryas, respectively. Oviatt, 1997.

4. Historic Climate Trends – Salt Lake City

5. Modeling Scenarios Hot and Dry Lake Level: 4176 ft Cold and Wet Lake Level: 4210 ft Hot and Wet Lake Level: 4202 ft Cold and Dry Lake Level: 4180 ft