|Latitude & Longitude (WGS84):||38° 15' 0'' North , 84° 36' 59'' West|
|Latitude & Longitude (decimal):||38.25006,-84.61659|
|Köppen climate type:||Cfa : Humid subtropical climate|
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4 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Late Ordovician - Middle Ordovician|
443.8 - 470 Ma
|Clays Ferry Formation|
Age: Ordovician (443.8 - 470 Ma)
Description: Main unit Limestone and shale, interbedded: Limestone is micrograined, fossiliferous with micrograined calcite matrix, and fine-grained bioclastic. Shale, probably about half of unit, weathers to yellowish-gray clayey soil. Poorly exposed. \nArgillaceous limestone and shale below the upper tongue of Millersburg Member: Limestone and shale, interbedded: Limestone (50 percent of unit) is argillaceous, medium gray, micrograined, unfossiliferous; in smooth-surfaced even to lenticular beds. Shale weathers to yellowish-gray clayey soil. In southernmost part of quadrangle, where poorly exposed, mapped with underlying unit. May be a tongue of Clays Ferry Formation.
Comments: Ocf; Georgetown Quadrangle (GQ-605) | http://kgs.uky.edu/kgsweb/PubsSearching/MoreInfo.asp?titleInput=774 | Map description and column: http://kgs.uky.edu/kgsmap/kgsgeoserver/geolDescID.asp?idType=pointID&fmcode=361CLFR&gq_num=605&map_level=24K
Reference: KGS Databases, Maps, and Publications. Kentucky 1:24,000 Geologic Map. Kentucky Geological Survey. 
458.4 - 470 Ma
Age: Middle Ordovician (458.4 - 470 Ma)
Stratigraphic Name: Lexington Limestone
Comments: in west-central Kentucky, the thickness is 60-110 m; in north-central Kentucky the thickness is 15-60+ m; in northeastern Kentucky, the thickness is at least 45+ m; in east-central Kentucky, the thickness is 55-95 m; Middle Ordovician age
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052.