Vinson deposit, Crittenden Co., Kentucky, USA

Age: Mississippian (323.2 - 358.9 Ma)

Stratigraphic Name: Leitchfield Formation; Buffalo Wallow Formation; Tar Springs Formation; Kinkaid Formation; Degonia Sandstone; Clore Limestone; Palestine Sandstone; Menard Limestone; Waltersburg Sandstone; Vienna Sandstone; Tar Springs Sandstone

Comments: in western Kentucky the unit thicknesses range as follows: the Kincaid Limestone (0-65 m), the Degonia Sandstone (1.5-12 m), the Clore Limestone (20-40 m), the Palestine Sandstone (9-22 m), the Menard Limestone (15-45 m), the Waltersburg Sandstone (6-25 m), the Vienna Limestone (0-12 m), the Tar Springs Sandstone (20-35 m); in west-central Kentucky unit thicknesses range as follows: the Leitchfield Formation (0-380 m) which includes the Buffalo Wallow Formation (0-270 m) and the Tar Springs Formation (0-130 m). In the Buffalo Wallow Formation, the Kinkaid Limestone Member ranges from 0-60 m thick and the Vienna Limestone Member ranges from 0-10 m thick.

Lithology: Major:{shale}, Minor:{limestone,siltstone,sandstone}, Incidental:{chert}

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. [133]

Age: Mississippian (323.2 - 358.9 Ma)

Description: Sandstone and shale: Sandstone, light-gray, yellowish-gray, grayish-orange, or light-brown, very fine to fine-grained, partly silty, quartzose, porous, thinly crossbedded to thick-bedded, generally with shaly partings. In part, clean sandstone grades laterally to shaly sandstone and sandy shale. Shale, dark-gray to greenish-gray, generally sandy and very silty. Sandstone outcrops fairly numerous.

Comments: Mpt; Fredonia Quadrangle (GQ-607) | http://kgs.uky.edu/kgsweb/PubsSearching/MoreInfo.asp?titleInput=775 | Map description and column: http://kgs.uky.edu/kgsmap/kgsgeoserver/geolDescID.asp?idType=pointID&fmcode=332PLSN&gq_num=607&map_level=24K

Lithology: Sandstone | shale

Reference: KGS Databases, Maps, and Publications. Kentucky 1:24,000 Geologic Map. Kentucky Geological Survey. [22]