Sierra Barrosa Formation
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The Sierra Barrosa Formation is a geologic formation of the Neuquén Basin in the northern Patagonian provinces of Mendoza and Neuquén. The formation dates to the Late Cretaceous, middle to late Coniac
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Neuquén Group
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The Neuquén Group is a group of geologic formations found in Argentina. Rocks in the Neuquén Group fall within the Cenomanian to early Campanian stages of the Late Cretaceous Period. It overlies the o
Sierra Barrosa Formation
…provinces of Mendoza and Neuquén. The formation dates to the Late Cretaceous, middle to late Coniacian, and belongs to the Río Neuquén Subgroup of the Neuquén Group. The formation overlies the Los Bastos Formation and is overlain by the Plottier Formation. As the underlying Los Bastos Formation, the Sierra Barrosa…
Almost the whole extent of the Neuquén Group is exposed between Lake Los Barreales and the bend of the Neuquén River in the center of this photo.To the lower left of the lake, a swath of light yellowish sandstones of the group's Huincul Formation are visible.