Lohan Cura Formation

Lohan Cura Formation
Stratigraphic range: Late Aptian-Albian ~117–100 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Sub-units	Puesto Quiroga & Cullín Grande Members
Underlies	Río Limay Subgroup  Candeleros Formation
Overlies	Mendoza Group  La Amarga, Agrio & Bajada Colorada Formations
Thickness	177 m (581 ft)
Lithology
Primary	Mudstone, siltstone, sandstone
Other	Claystone
Location
Coordinates	39°36′S 69°24′W / 39.6°S 69.4°W / -39.6; -69.4
Approximate paleocoordinates	43°42′S 39°24′W / 43.7°S 39.4°W / -43.7; -39.4
Region	Río Negro Province, Mendoza Province, Neuquén Province
Country	Argentina
Extent	Neuquén Basin
Type section
Named by	Leanza & Hugo
Year defined	1995
Lohan Cura Formation (Argentina)

The Lohan Cura Formation is a geologic formation with outcrops in the Argentine provinces of Río Negro, Neuquén, and Mendoza. It is the second oldest Cretaceous terrestrial formation in the Neuquén Basin.

The Lohan Cura Formation unconformably overlies the terrestrial La Amarga Formation. In some places it also overlies the older marine Agrio and Bajada Colorada Formations of the Mendoza Group through the same Middle Miranican unconformity. It is in turn overlain by the Candeleros Formation of the Neuquén Group, separated by the Main Miranican unconformity. The Lohan Cura correlates with the Rayoso Formation in some areas.^[1]