Displacement is measured by correlating similar layers in the stratigraphy. The trench is approximately 50 feet long with a maximum depth of 15 feet. Flags were used to mark the boundaries of the soil layers. After the layers were identified and correlated, a cross-section was sketched. The fault line is evident in the cross-section except in the upper layers where colluvial and alluvial deposits exist.
Colluvial deposits occur when the displacement occurs through non-water related transport.
The alluvial deposition occurs as eroded sediment is transported and deposited by water. The presence of both types of deposition distort the stratigraphy of the cross-section. South of Carson City on US Hwy 385, left on Stephanie Way to Johnson Lane Park. The community and local government are looking to clarify the risk associated with the alluvial fan area to help developers and home owners make decisions for residential development. The alluvial fan flood hazards pose a serious threat to the community.