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INDEX
G
- Glenburn Till Member
- Glencoe Member
- Glenhaven Member
- Glenwood Formation
- Golconda Group
- Gordonville Member
- Goreville Limestone Member
- Grand Detour Formation
- Grand Tower Limestone
- Granger Sandstone Member
- Grassy Creek Shale
- Grassy Knob Chert
- Grayslake Peat
- Greenbush Coal Member or Bed
- Greenup Limestone Member
- Grigg tongue
- Grindstaff Sandstone Member
- Grove Church Shale
- Grover Gravel
- Gulfian Series
- Gunn Member
- Gunter Sandstone
- Guttenberg Formation
H
H cont.
- Harrodsburg Limestone Member
- Hazel Green Member
- Hazelwood Member
- Hegeler Till Member
- Hely Member
- Hennepin Member
- Henry Formation
- Hermon Coal Member
- Herrin Coal Member
- Hillery Till Member
- Hoing Sandstone Member
- Holocene Series
- Hombergian Stage
- Houchin Creek Coal Member
- Howardton Limestone Member
- Hulick Till Member
- Hunton Limestone Megagroup
I
J
K
K cont.
- Kewanee Group
- Kewaunee Formation
- Kidd Member
- Kimmswick Subgroup
- Kinderhookian Series
- Kingdom Sandstone Member
- Kings Lake Formation
- Kinkaid Limestone
- Kiser Creek Member
- Knobs Megagroup
- Knox Dolomite Megagroup
- Kress Member
L
- La Salle Limestone Member
- Lacey Member
- Lacon Formation
- Lagonda Member
- Lake Creek Coal Member
- Lake Michigan Formation
- Lake Michigan Member
- Lawson Shale Member
- Lee Center Till Member
- Lemont Formation
- Levias Limestone Member
- Levings Member
- Lierle Clay Member
- Lingle Formation
- Litchfield Coal Member
- Little Bear Soil
- Little Vermilion Limestone Member
- Livingston Limestone Member
- Lombard Dolomite Member
- Lonsdale Limestone Member