Guelph Formation

Guelph Formation
Stratigraphic range: Silurian
Stromatolite from the Guelph Formation
TypeSedimentary
UnderliesVernon, Lockport Group
OverliesEramosa Member
Thickness160 feet
Lithology
PrimaryDolomite
Location
RegionNew York
CountryUnited States
Type section
Named forGuelph, Ontario
Named byWilliam Edmond Logan

The Guelph Formation is a geologic formation in New York and in Ontario, Canada. It preserves fossils dating back to the Silurian period.

Fossils

Fossils within the formation include:

References

  1. 1 2 3 Logan, W.E., Murray, A., Hunt, T.S., and Billings, E., 1863. Geology of Canada. Report of Progress from its Commencement to 1863; Geological Survey of Canada, 983 p. [accompanied by an Atlas of Maps and Sections.] doi:10.4095/123563
  2. ↑ Guelph, USGS, National Geologic Map Database, Geolex — Unit Summary