- Usage in publication:
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- Miller Mill Quartzite Member
- Modifications:
-
- Named
- Dominant lithology:
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- Quartzite
- AAPG geologic province:
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- Piedmont-Blue Ridge province
Summary:
Lay Dam Formation is named in this report and subdivided into Kalona Quartzite Member and overlying Miller Mill Quartzite Member. Miller Mill consists of medium- to coarse-grained, locally conglomeratic quartzite. Reaches a maximum of 950 ft in thickness. Underlies Butting Ram Sandstone. Age is Early Devonian.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Miller Mill Quartzite Member
- Modifications:
-
- Overview
- AAPG geologic province:
-
- Piedmont-Blue Ridge province
Summary:
Miller Mill Quartzite Member of Lay Dam Formation is a white to medium-gray medium- to coarse-grained, quartzose to feldspathic quartzite, with local conglomeratic zones. Occurs in the northern Piedmont of AL. Underlies the Erin Slate Member; overlies Heflin Phyllite. Age is Silurian(?) to Devonian(?).
Source: GNU records (USGS DDS-6; Reston 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 ([ ]).