National Geologic Map Database
General Information
- Title: Radiometric age (Late Ordovician) of the Quincy, Cape Ann and Peabody granites from eastern Massachusetts
- Author(s): Zartman, R.E., and Marvin, R.F.
- Publishing Organization: Geological Society of America
- Series and Number: Bulletin v.82, n.4 [p. 937]
- Publication Date: 1971
- Map Scale: 1:685,000
- Cross Section: None
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