Tewa Group

Tewa Group
Stratigraphic range: Pleistocene, 1.85–0.068 Ma
Kwage Mesa, a finger mesa of the Bandelier Tuff, Tewa Group
TypeGroup
Sub-unitsBandelier Tuff, Cerro Toledo Formation, Valles Rhyolite
OverliesPolvadera Group
Thickness1,050 m (3,440 ft)
Lithology
PrimaryRhyolite
Location
Coordinates35°45′50″N 106°19′19″W / 35.764°N 106.322°W / 35.764; -106.322
Region New Mexico
Country United States
Type section
Named forTewa Mountains (obsolete name for Jemez Mountains)
Named byR.L. Griggs
Year defined1964
Tewa Group is located in the United States
Tewa Group
Tewa Group (the United States)
Tewa Group is located in New Mexico
Tewa Group
Tewa Group (New Mexico)

The Tewa Group is a group of geologic formations exposed in and around the Jemez Mountains of northern New Mexico. Radiometric dating gives it an age of 1.85 million to 72 thousand years, corresponding to the Pleistocene epoch.