Category:Producing Zones and Informal Names
Information on producing zones and informal names in Illinois shown on this graphic can be found by using the hyperlinked image or the alphabetical listing below. These links will take you to the "Economic importance" section of the corresponding geologic formation.
Generalized geological column of southern Illinois. Size of solid dots indicates relative amount of petroleum produced from individual producing zones. Formation names are in capital letters. Abbreviations: A., Alexandrian; Cinc., Cincinnatian; Cr., Creek; E., eastern; Gol., Golconda; Incl., including; K., Kinderhookian; L., lower; Niag.-Cayug., Niagaran-Cayugan; P. Cr. Sd, Paint Creek sand; Ren., Renault; Sh, shale; U., upper; U.P.C., Upper Paint Creek; W., western.
Modified from: Kolata, Dennis R, and Cheryl Nimz, eds., 2010, Geology of Illinois: University of Illinois at Urbana-Champaign, Institute of Natural Resource Sustainability, Illinois State Geological Survey, 530 p.
Pages in category "Producing Zones and Informal Names"
The following 76 pages are in this category, out of 76 total.