- Usage in publication:
-
- Lanoria quartzite*
- Modifications:
-
- Revised
- AAPG geologic province:
-
- Southwestern Basin-and-Range region
Summary:
Overlies (unconformably) Castner limestone (new) or [conformably?] Mundy breccia (new) at North Franklin Mountain, El Paso Co, TX, Southwestern Basin-and-Range region. Unconformably underlies an unnamed rhyolite. Divided into three informal members consisting of a lower baked sandstone, siltstone and shale; a middle cliff-forming quartzite; and an upper sandstone, siltstone and shale. Thickness is 2600 ft. Geologic map. Precambrian age.
Source: GNU records (USGS DDS-6; Denver GNULEX).
- Usage in publication:
-
- Lanoria Quartzite
- Modifications:
-
- Revised
- AAPG geologic province:
-
- Southwestern Basin-and-Range region
Summary:
Revised to unconformably underlie newly named Coronado Hills Conglomerate of Thunderbird Group (rank raised) in southern Franklin Mountains, El Paso Co, TX, Southwestern Basin-and-Range region. Overlies Mundy Breccia. Precambrian age.
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 ([ ]).