USGS - science for a changing world

Mineral Resources On-Line Spatial Data

Mineral Resources > Online Spatial Data > Geology > by state > Minnesota

Upper and Middle Ordovician rocks, undivided

Upper and Middle Ordovician rocks, undivided - Limestone and shaly limestone of the Maquoketa and Dubuque Formations, and limestone and dolostone of the Galena Group in the Hollandale embayment of southeastern Minnesota
StateMinnesota
NameUpper and Middle Ordovician rocks, undivided
Geologic ageLate and Middle Ordovician
Original map labelOum
Primary rock typelimestone
Secondary rock typedolostone (dolomite)
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone
Sedimentary > Carbonate > Dolostone
Map references
Morey, G.B., and Meints, Joyce, 2000, Geologic map of Minnesota - Bedrock Geology: Minnesota Geological Survey, State Map Series, S-20, 3rd edition, scale 1:1,000,000. available online at: http://www.geo.umn.edu/mgs/currentpubs.htm
Unit references
Morey, G.B., and Meints, Joyce, 2000, Geologic map of Minnesota - Bedrock Geology: Minnesota Geological Survey, State Map Series, S-20, 3rd edition, scale 1:1,000,000. available online at: http://www.geo.umn.edu/mgs/currentpubs.htm
Geographic coverageDodge - Faribault - Fillmore - Freeborn - Goodhue - Houston - Martin - Mower - Olmsted - Rice - Steele - Waseca - Winona

Show this information as [XML] - [JSON]

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America logoUSA.gov logoU.S. Department of the Interior | U.S. Geological Survey
URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=MNOum;0
Page Contact Information: Peter Schweitzer