Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Yakima Basalt  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Neogene | |
| ....Miocene | |
| .....Yakima Basalt | |
| RT | Idaho |
| Washington | |
| Oregon | |
| lower Pliocene | |
| upper Miocene | |
| Columbia River Basalt Group | |
| Grande Ronde Basalt | |
| Saddle Mountains Basalt | |
| Wanapum Basalt | |
| SN | Upper Miocene. Formerly also included in lower Pliocene? Typical plateau basalt. In E Washington; also in Oregon and Idaho. Sometimes called the Yakima Basalt Subgroup of the Columbia River Basalt Group, it has been considered to have as members, the Wana |