Mulichinco Formation

Mulichinco Formation
Stratigraphic range: Valanginian ~140–136 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Mulichinco Formation at Puerta Curaco
Type	Geological formation
Unit of	Mendoza Group
Underlies	Agrio Formation
Overlies	Vaca Muerta
Thickness	200–400 metres (660–1,310 ft)
Lithology
Primary	Mudstone, siltstone, sandstone
Other	Limestone
Location
Coordinates	38°30′S 70°12′W / 38.5°S 70.2°W / -38.5; -70.2
Approximate paleocoordinates	37°48′S 33°30′W / 37.8°S 33.5°W / -37.8; -33.5
Region	Neuquén Province
Country	Argentina
Extent	Neuquén Basin
Mulichinco Formation (Argentina)

The Mulichinco Formation is a geological formation in Argentina. It is Valanginian in age and is predominantly terrestrial, being deposited at a time of marine regression in the Neuquén Basin, and predominantly consists of siliciclastic rocks.^[1]