Willow Tank Formation

Willow Tank Formation
Stratigraphic range: Late Cretaceous, Cenomanian
TypeGeological formation
UnderliesBaseline Sandstone[1]
OverliesAztec Sandstone[2]
Thicknessunknown
Lithology
PrimaryClaystone, conglomerate, sandstone
Location
Coordinates36°27′22″N 114°31′59″W / 36.45611°N 114.53306°W / 36.45611; -114.53306
Approximate paleocoordinates20°48′N 53°24′W / 20.8°N 53.4°W / 20.8; -53.4
RegionNevada
CountryUnited States
ExtentValley of Fire, Nevada

The Willow Tank Formation is a geologic formation which outcrops in the U.S. state of Nevada. Initially believed to be of Early Cretaceous (Albian) age,[3] later studies have concluded that it was more likely to be of Late Cretaceous (Cenomanian) age,[4][5][6][7] making it equivalent to the Cloverly and Cedar Mountain Formations. It was deposited in an anastomosed fluvial system.[3]

  1. ^ Cite error: The named reference Macro was invoked but never defined (see the help page).
  2. ^ Longwell, C.R. (1949). "Structure of the Northern Muddy Mountain Area, Nevada". Geological Society of America Bulletin. 60 (5): 923–968. Bibcode:1949GSAB...60..923L. doi:10.1130/0016-7606(1949)60[923:SOTNMM]2.0.CO;2. ISSN 0016-7606. Wikidata Q60182382.
  3. ^ a b Cite error: The named reference Bonde08 was invoked but never defined (see the help page).
  4. ^ "Lake Mead G-E-M resources area (GRA no. NV-35) : Technical report (WSAs NV 050-0231, 050–0233, 050–0235, 050–0236, and 050-0238) : Final report" (PDF).
  5. ^ "Nellis/Quail Spring G-E-M resources area (GRA no. NV-33) : Technical report (WSAs NV 050-0411, 050-04R-15A, B, and C) : Final report" (PDF).
  6. ^ "Muddy Mountains G-E-M resources area (GRA no. NV-34) : Technical report (WSA NV 050-0229) : Final report" (PDF).
  7. ^ Cite error: The named reference Nevadadromeus was invoked but never defined (see the help page).