GEOL 101 Lecture Notes - Lecture 16: Unconformity, Erosion Surface
Document Summary
Coastal hazards: hurricanes: storm surge: a lens of water pushed in front of a storm, raising the water above normal high tide. Tides: are daily changes in the elevation of the ocean surface, caused by the gravitational pull of the sun (minor) and moon (major) Sun has higher gravitational pull but smaller effects on tide. Coasts: emergent vs submergent look up in book. Relative dating: superposition: in an undeformed sequence of rocks, each bed is older than the one above and younger than the one below. Relative dating: original horizontality: layers of rock were originally horizontal when deposited. Relative dating: cross-cutting relationships: a geologic feature that cuts across other geologic features must be younger than the features it cuts across. Relative dating: inclusions: sediments are deposited atop of weathered igneous mass and thus are younger (body of liquid rock that gets injected into solid rock)
