Igneous Rocks of the Belt Series
Not all of Glacier Park’s rocks accumulated slowly and quietly as sediment in a body of water. At many places, interbedded with and cutting across the sediments, there are bodies of igneous rock which reached their present position in the form of hot molten material forced up from deep within the crust.
COLUMNAR SECTION OF BELT ROCKS
| PROTEROZOIC | ||
|---|---|---|
| KINTLA | 860′+ | Red argillite |
| SHEPARD | 600′ | Buff limestone |
| PURCELL | 250′ | Black lava |
| SIYEH | 4000′ | Dark diorite bordered by white altered limestone |
| Blue limestone. Weathers buff | ||
| GRINNELL | 1600-3000′ | Red argillite and white quartzite |
| APPEKUNNY | 2500′± | Green argillite. Some white quartzite |
| ALTYN | 2300′± | Gray limestone. Weathers buff |