Cuba sandstone in Carbondale formation. Applied Cuba sandstone to beds in Carbondale formation of Fulton County, Illinois, beneath his Big Creek shale and unconformably above Canton shale. Age is Pennsylvanian. Thickness and origin of name not stated.
[Probably named from town of Cuba, Fulton Co., central western IL.]
Source: US geologic names lexicon (USGS Bull. 896, p. 552).
Cuba sandstone in Carbondale formation. In places Cuba sandstone cuts out Canton shale and all beds down to under clay of coal No. 5. Age is Pennsylvanian.
Source: US geologic names lexicon (USGS Bull. 896, p. 552).
Pg. 50 (fig. 22), 107-108, 195, 196, 204, 206, 207. Cuba sandstone of Carbondale group. Light brownish-gray and spotted with bright brown specks; commonly thin-bedded and shaly in upper part, the beds thickening downward. Thickness 3 to more than 80 feet; through most of Glasford quadrangle and east of Cuba in Havana and Canton quadrangles, ranges from 30 to 80 feet and varies inversely with underlying St. David beds. Underlies Big Creek shale near base of Brereton cyclothem, Carbondale group. Age is Pennsylvanian.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1000).
Pg. 35. Cuba sandstone. Replaced with Vermilionville sandstone member of Carbondale formation of Kewanee group (new). Name Cuba preempted.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1000).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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