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Interactive maps:

More DOGAMI web pages:

(DOGAMI Interpretive Map 28), by Ian P. Madin

IMS-28 map sources: Subduction zone diagram modified from an image by José F. Vigil and Robert I. Tilling, courtesy of U.S. Geological Survey. Timeline modified from This Dynamic Planet, U.S. Geological Survey Geologic Investigations Series Map I-2800. Offshore landslide: Super-scale failure of the southern Oregon Cascadia margin, by C. Goldfinger and others, Pure and Applied Geophysics, v. 157, 2000. Fault age data: Map and data for Quaternary faults and folds in Oregon, USGS Open-File Report 03-095, by S.F. Personius and others, 2003. Base map components—Oregon topography: USGS 10-m DEMs. Border state topography: USGS National Elevation Datasets. Bathymetry: NGDC Coastal Relief Model. Waterbodies: Esri 2008 and BLM 2005. Streams: Esri Data 2008. Glaciers: Portland State University Geology Department. National Parks and Monuments: Esri 2008 and BLM. Cities: Esri 2008. Geographic names: USGS GNIS 1996. Highways: state departments of transportation.

IMS-28 acknowledgments: Cartography: Sarah Robinson. Additional GIS data support: J. Roberts and R. J. Watzig. Poster layout and website: D. Schueller.

Sample citation format: Madin, Ian P., 2009, Oregon: A Geologic History, Oregon Department of Geology and Mineral Industries Interpretive Series Map 28 [companion web page]. (accessed Month Day, Year)

Oregon Geologic Data Compilation (OGDC):

The Oregon Geologic Data Compilation (OGDC) is a geologic information database for the entire state. Team members compiled separate maps and datasets covering 96,000 square miles into the most accurate, complete, and up-to-date geologic map in Oregon’s history. View an interactive map.

By integrating the work of many individual geologic mappers into a digital data set, the compilation becomes a “living map” that can be accessed on many different levels and can change as new information is added. The data are stored in a geographic information system (GIS) format with links to a relational database. Knowledge of and access to GIS and database software applications are essential to use of the compilation data.