National Geologic Map Database
General Information
- Title: Gigantic Ordovician volcanic ash fall in North America and Europe; biological, tectonomagmatic, and event-stratigraphic significance
- Author(s): Huff, W.D., Bergstrom, S.M., and Kolata, D.R.
- Publishing Organization: Geological Society of America
- Series and Number: Geology v. 20 no. 10 [p. 875-878]
- Publication Date: 1992
- Cross Section: None
- North Latitude: 49° 23' 4" N (49.3844)
- South Latitude: 30° 13' 16" N (30.2211)
- East Longitude: 75° 14' 32" W (-75.2422)
- West Longitude: 97° 14' 21" W (-97.2392)
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