Hornblende andesite from North America Plate
Canada | |
| BC Minfile |
| BC Minfile |
| Peatfield, Giles (n.d.) Personal communication. |
USA | |
| Elliott, Brent A. (2018) "Petrogenesis of Heavy Rare Earth Element Enriched Rhyolite: Source and Magmatic Evolution of the Round Top Laccolith, Trans-Pecos, Texas" Minerals 8, no. 10: 423. https://doi.org/10.3390/min8100423 |