Thickness ca. 1,000 m (3,300 ft) | Named for Oxaya | |
Underlies Zapahuira Formation, Huaylas Formation | ||
Oxaya Formation (Spanish: Formación Oxaya) is a geological formation in northern Chile made up of ignimbrite sheets. The formation formed about 25 to 19 million years ago in the Late Oligocene and Early Miocene.
References
Oxaya Formation Wikipedia(Text) CC BY-SA