Mineralogy and Petrology of Lava Flows (Tertiary-Quaternary) In Southeastern Idaho and at Black Mountain, Rich County, Utah
Lava flows of Tertiary-Quaternary age occur in Enoch Valley, Upper Valley, and Slug Valley in southeastern Idaho. The basalts in Upper Valley and Enoch Valley contain olivine (Fo69 to Fo37), plagioclase (An62 to An39), augite and Fe-Ti oxides. The lava in Slug Valley lacks plagioclase, but contains...
| Main Author: | |
|---|---|
| Format: | Others |
| Published: |
DigitalCommons@USU
1981
|
| Subjects: | |
| Online Access: | https://digitalcommons.usu.edu/etd/3817 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=4837&context=etd |