National Geologic Map Database
General Information
- Title: Age of Laramide porphyries near Leadville, Colorado
- Author(s): Pearson, R.C., Tweto, Ogden, Stern, T.W., and Thomas, H.H.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Professional Paper 450-C
- Larger Work: Geological Survey Research 1962, short papers in geology, and hydrology, articles 60-119
- Publication Date: 1962
- Map Scale: 1:233,000
- Cross Section: None
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