Lawrence Formation

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][1] 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]

TypeFormation

Unit ofKansas, et al: Douglas Group
Oklahoma: Vamoosa Group

Sub-unitsKansas usage:

• Amazonia Limestone
• Ireland Sandstone
• Robbins Shale Member
• Haskell Limestone (removed 2002)^[3]

UnderliesOread Limestone

Quick facts Lawrence Formation, Type ...

Lawrence Formation Lawrence Shale
Stratigraphic range: [1]Kasimovian PreꞒ Ꞓ O S D C P T J K Pg N ↓ (Virgilian stage)[2]
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.
Type	Formation
Unit of	Kansas, et al: Douglas Group Oklahoma: Vamoosa Group
Sub-units	Kansas usage: Amazonia Limestone Ireland Sandstone Robbins Shale Member Haskell Limestone (removed 2002)[3]
Underlies	Oread Limestone
Overlies	Cass Limestone
Lithology
Primary	Shale
Other	Limestone, sandstone
Location
Region	Kansas
Country	United States
Type section
Named for	Lawrence, Kansas
Named by	Erasmus Haworth[2]
Year defined	1894

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