Tomstown Dolomite

Tomstown Dolomite
Tomstown Dolomite
Stratigraphic range: Cambrian
	USGS photo 1 mile east of Bakerton, West Virginia
Type	Sedimentary
Underlies	Rome Group and Waynesboro Formation
Overlies	Antietam Formation and Chilhowee Group
Thickness	200 - 1000 feet
Lithology
Primary	dolomite
Other	Chert, limestone, shale
Location
Region	Appalachia, Mid-Atlantic United States, and Southeastern United States
Country	United States
Extent	Maryland, Pennsylvania, Virginia, West Virginia

The Tomstown Dolomite or Tomstown Formation is a geologic formation in Maryland, Pennsylvania, Virginia and West Virginia.^[2]^[3]^[4] It preserves fossils dating to the Cambrian Period.

In Maryland it is described as "Interbedded light gray to yellowish-gray, thin- to thick-bedded dolomite and limestone; some shale layers; gradational contact with Antietam; thickness 200 to 1,000 feet."^[2]

References[edit]

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

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[1] Paleozoic Sedimentary Successions of the Virginia Valley & Ridge and Plateau

[USGS1-2] Tomstown Dolomite in Maryland

[3] Tomstown Dolomite in Virginia

[4] Tomstown Dolomite in West Virginia

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[2]

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[4]

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References[edit]