bn:21774103n
Noun Named Entity
Categories: Stratigraphy of British Columbia, Western Canadian Sedimentary Basin, Stratigraphy of Alberta
EN
Purcell Supergroup  Aldridge Formation  Altyn Formation  Gateway Formation  Haig Brook Formation
EN
The Purcell Supergroup is composed primarily of argillites, carbonate rocks, quartzites, and mafic igneous rocks of late Precambrian age. Wikipedia
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EN
The Purcell Supergroup is composed primarily of argillites, carbonate rocks, quartzites, and mafic igneous rocks of late Precambrian age. Wikipedia
Mesoproterozoic geological supergroup on the Canadian Shield Wikidata