U–Th–Pb and Rb–Sr ages in granite reference sample from southwestern Saskatchewan
| Autor: | A. J. Bartel, Z. E. Peterman, J. N. Rosholt |
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| Rok vydání: | 1970 |
| Předmět: | |
| Zdroj: | Canadian Journal of Earth Sciences. 7:184-187 |
| ISSN: | 1480-3313 0008-4077 |
| DOI: | 10.1139/e70-015 |
| Popis: | Concordant total rock 206Pb–238U, 207Pb–235U, 207Pb–206Pb, 208Pb–232Th and 87Sr–87Rb ages of 1805 ± 40, 1815 ± 55, 1820 ± 110, 1790 ± 60, and 1810 ± 50, in millions of years, respectively, were obtained on the reference sample of biotite granite. The sample is a piece of drill core from a depth of 7300 ft (~2225 m), about 80 ft (~24.4 m) below the top of the Precambrian basement complex, in southwestern Saskatchewan. |
| Databáze: | OpenAIRE |
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