Origin of the Sudbury Complex by meteoritic impact: Neodymium isotopic evidence
Science
By: B.E. Faggart Jr., A. R. Basu, and Mitsunobu Tatsumoto
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Abstract
Samarium-neodymium isotopic data on whole rocks and minerals of the Sudbury Complex in Canada gave an igneous crystallization age of 1840 ± 21 × 106 years. The initial epsilon neodymium values for 15 whole rocks are similar to those for average upper continental crust, falling on the crustal trend of neodymium isotopic evolution as defined by shales. The rare earth element concentration patterns of Sudbury rocks are also similar to upper crustal averages. These data suggest that the Sudbury Complex formed from melts generated in the upper crust and are consistent with a meteoritic impact.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Origin of the Sudbury Complex by meteoritic impact: Neodymium isotopic evidence |
| Series title | Science |
| DOI | 10.1126/science.230.4724.436 |
| Volume | 230 |
| Issue | 4724 |
| Year Published | 1985 |
| Language | English |
| Publisher | American Association for the Advancement of Science |
| Description | 4 p. |
| First page | 436 |
| Last page | 439 |
| Country | Canada |
| State | Ontario |
| Other Geospatial | Sudbury Complex |