Lawrence Formation Explained

Lawrence Formation Lawrence Shale
Type:	Formation
Age:	(Virgilian stage)
Period:	Late Carboniferous
Prilithology:	Shale
Otherlithology:	Limestone, sandstone
Namedfor:	Lawrence, Kansas
Namedby:	Erasmus Haworth
Year Ts:	1894
Region:	Kansas
Country:	United States
Subunits:	Kansas usage: Amazonia Limestone Ireland Sandstone Robbins Shale Member Haskell Limestone (removed 2002)^[1]
Unitof:	Kansas, et al: Douglas Group Oklahoma: Vamoosa Group
Underlies:	Oread Limestone
Overlies:	Cass Limestone

The Lawrence Formation, also referred to as Lawrence Shale, is a Late-Carboniferous geologic formation in Kansas, extending into Nebraska, Iowa, Missouri, and Oklahoma.^{[2] [3]} This unit was named by Erasmus Haworth in 1894, the year that Haworth founded the Kansas Geological Survey in Lawrence, Kansas, having personally surveyed the formation the year before.^[2]

See also

• List of fossiliferous stratigraphic units in Kansas
• Paleontology in Kansas

Notes and References

1. P. H. Heckel and W. L. Watney . Revision of Stratigraphic Nomenclature and Classification of the Pleasanton, Kansas City, Lansing, and Lower Part of the Douglas Groups (Lower Upper Pennsylvanian, Missourian) in Kansas . Kansas Geological Survey Bulletin . 246 . . 2002 . Stratigraphy, continued : Douglas Group (redefined) . 2022-04-02 .
2. Web site: Geologic Unit: Lawrence. Geolex — Significant Publications . National Geologic Database . . 2022-04-03 .
3. 7, TEXT-FIGURE 4 . Stratigraphy . 10 . P. H. Heckel . 1-2 . Pennsylvanian stratigraphy of Northern Midcontinent Shelf and biostratigraphic correlation of cyclothems . 2022-04-02 . 2013 .