Stratigraphy and Timescales 1st ed.
These data are compiled from thousands of journal articles, maps, theses, and other documents, as referenced herein.
Searchable structural characteristics include length of fault or fault section, average strike of fault or fault section, sense of movement, and dip direction of the fault.
Many new types of e.
Most of the evidence is in the form of trace fossils, such as trails and worm holes.
Geological Survey, The Geologic History of the Columbia River Gorge: Information Broshure.