- Usage in publication:
-
- Olduvai event*
- Modifications:
-
- Named
- AAPG geologic province:
-
- Cosmopolitan
Summary:
Named as a cosmopolitan normal polarity event within Matuyama reversed epoch (new). Derivation of name not discussed [though presumably named for Olduvai Gorge in northern Tanzania, eastern Africa]. Olduvai was a short term event represented in volcanic rocks dated at 1.9 m.y.
Source: GNU records (USGS DDS-6; Denver GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).