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Lawrence Formation

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Lawrence Formation
Lawrence Shale
Stratigraphic range: Kasimovian PreꞒ Ꞓ O S D C P T J K Pg N ↓ (Virgilian stage)
Upper shale of the Lawrence Formation in roadcut of the South Lawrence Trafficway

(US-40/K-10)

In the upper background, the brown Toronto Limestone member is the base of the Oread Limestone.
TypeFormation
Unit ofKansas, et al: Douglas Group
Oklahoma: Vamoosa Group
Sub-unitsKansas usage:
  • Amazonia Limestone
  • Ireland Sandstone
  • Robbins Shale Member
  • Haskell Limestone (removed 2002)
UnderliesOread Limestone
OverliesCass Limestone
Lithology
PrimaryShale
OtherLimestone, sandstone
Location
RegionKansas
CountryUnited States
Type section
Named forLawrence, Kansas
Named byErasmus Haworth
Year defined1894

The Lawrence Formation, also referred to as Lawrence Shale, is a Late-Carboniferous geologic formation in Kansas, extending into Nebraska, Iowa, Missouri, and Oklahoma. 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.

See also

References

  1. ^ P. H. Heckel (2013). "Pennsylvanian stratigraphy of Northern Midcontinent Shelf and biostratigraphic correlation of cyclothems". Stratigraphy. 10 (1–2): 7, TEXT-FIGURE 4. Retrieved 2022-04-02.
  2. ^ "Geologic Unit: Lawrence". National Geologic Database. Geolex — Significant Publications. United States Geological Survey. Retrieved 2022-04-03.
  3. P. H. Heckel and W. L. Watney (2002). "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). University of Kansas Publications, Kansas Geological Survey: Stratigraphy, continued : Douglas Group (redefined). Retrieved 2022-04-02.


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