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Full-Text Articles in Volcanology
Geology Of The Lewisporte/Loon Bay Area, Newfoundland, Canada, Richard F. Livaccari
Geology Of The Lewisporte/Loon Bay Area, Newfoundland, Canada, Richard F. Livaccari
Geology Theses and Dissertations
The Lewisporte/Loon Bay area is located within the Central Volcanic belt of Newfoundland. It contains rocks of (?)upper Cambrian to Ordovician in age. The most important group of rocks within this area is the three part Campbellton sequence. The oldest unit of the Campbellton sequence is the Loon Harbour Formation (500-1,000 m thick) composed of mafic volcaniclastics that is conformably overlain by manganiferous cherts of the Luscombe Formation. The Luscombe Formation (370 m thick) is composed of manganiferous cherts that grade upward into highly argillaceous chert. Conformably overlying the Luscombe Formation is the Riding Island greywacke that represents the uppermost …