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- Usage in publication:
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- Grasselli dolomite
- Modifications:
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- Named
- Dominant lithology:
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- Dolomite
- AAPG geologic province:
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- Appalachian basin
Summary:
Name Grasselli dolomite applied to dark fine-grained to finely crystalline dolomite in the ore section of Grasselli Mine. Scattered throughout the dolomite are a few white spots and at the base is a green shale and some quartzite grains. Overlies brown limestone, which may be altered to crystalline dolomite. Underlies 3 to 5 ft of fine-grained to finely crystalline mottled and sparsely spotted greenish to pinkish medium-gray dolomite. Thickness about 5 ft. Occurs within the Kingsport formation and considered Ordovician (Canadian) in age.
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 ([ ]).