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Biogeology of Montana
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Media in category "Biogeology of Montana"
The following 2 files are in this category, out of 2 total.
Stromatolites in limestone (Helena Formation (a.k.a. Siyeh Formation), Belt Supergroup, Mesoproterozoic, about 1.45 Ga; Going-to-the-Sun Highway, Glacier National Park, Montana, USA) 7 (15177930826).jpg
3,008 × 2,000; 3.16 MB
Stromatolites in limestone (Helena Formation (a.k.a. Siyeh Formation), Belt Supergroup, Mesoproterozoic, about 1.45 Ga; Going-to-the-Sun Highway, Glacier National Park, Montana, USA) 8 (15014266550).jpg
3,008 × 2,000; 3.16 MB
,_Belt_Supergroup,_Mesoproterozoic,_about_1.45_Ga;_Going-to-the-Sun_Highway,_Glacier_National_Park,_Montana,_USA)_7_(15177930826).jpg)
,_Belt_Supergroup,_Mesoproterozoic,_about_1.45_Ga;_Going-to-the-Sun_Highway,_Glacier_National_Park,_Montana,_USA)_8_(15014266550).jpg)