Description: Digital data for sediment thickness was obtained from the Southern Methodist University (SMU) Geothermal Laboratory (http://smu.edu/geothermal/). Data for sediment thickness can be converted to depth to crystalline basement by subtracting the sediment thickness from digital topography. Data is not included for the tectonically active regions of the western US because sediment thickness and depth to basement is complex and highly variable over short distances due to intensive faulting.
Description: Digital data for sediment thickness was obtained from the Southern Methodist University (SMU) Geothermal Laboratory (http://smu.edu/geothermal/). Data for sediment thickness can be converted to depth to crystalline basement by subtracting the sediment thickness from digital topography. Data is not included for the tectonically active regions of the western US because sediment thickness and depth to basement is complex and highly variable over short distances due to intensive faulting.