Abstract
Potassium-argon dating of whole-rock contact zones from 27 Precambrian mafic dikes in Wyoming suggests several periods of intrusion in the time interval 700 to 2500 m.y. A widespread period at 1900 to 2200 m.y. is suggested by the data.
Original language | English |
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Pages (from-to) | 899-906 |
Number of pages | 8 |
Journal | Bulletin of the Geological Society of America |
Volume | 80 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1969 |
Externally published | Yes |