North Range Group; Rabbit Lake Formation (MNPRenr;0)

North Range Group; Rabbit Lake Formation - Mudstone, graywacke, iron-rich strata, and associated mafic metavolcanic rocks metamorphosed to the greenschist facies. Includes thin beds of carbonate-silicate iron-formation

State	Minnesota
Name	North Range Group; Rabbit Lake Formation
Geologic age	Early Proterozoic
Original map label	Penr
Primary rock type	mudstone
Secondary rock type	graywacke
Other rock types	metavolcanic rock; iron formation
Lithologic constituents	Minor Metamorphic > Metaigneous > Metavolcanic Sedimentary > Chemical > Banded-iron-formation Sedimentary > Clastic > Sandstone > Graywacke Sedimentary > Clastic > Mudstone
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 [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 [http://www.geo.umn.edu/mgs/currentpubs.htm]
Geographic coverage	Crow Wing