Stromatolites from the Middle Proterozoic Altyn Limestone, Belt Supergroup, Glacier National Park, Montana
Horodyski RJ. Stromatolites from the Middle Proterozoic Altyn Limestone, Belt Supergroup, Glacier National Park, Montana. Pages 585-597. In Walter MR (ed). Stromatolites. Elsevier Scientific Publishing Company. Amsterdam. Developments in Sedimentology
The Belt Supergroup, a thick Middle Proterozoic sedimentary sequence consisting of argillaceous, arenaceous, and calcareous rocks, extends from western Montana and northern Idaho into adjacent parts of Alberta, British Columbia, and Washington state (Ross, 1970; Harrison, 1972). The section exposed at Glacier National Park is near the eastern margin of the Beltian depositional basin; it is very well exposed, structurally simple, essentially unmetamorphosed, and contains an abundant and divers assemblage of stromatolites.
- Type
- Book Chapter
- Authors
- Horodyski, Robert
- Units
- CRCO , GLAC
- Keywords
- Belt Supergroup, Geology, Middle Proterozoic Altyn Limestone, Stromatolites