Misconceivement About the Formation of True DeKalb Mounds in DeKalb County, Illinois

  •  Michael Iannicelli    


A study is presented here in order to enhance knowledge about an earlier preliminary study of true DeKalb mounds. The DeKalb mounds of DeKalb County, IL are lowland, gigantic, oriented, low-relief, relict hillocks that are unquestionably a product of late Wisconsinan glacial deposition. However, a new controversy weighs them as being either a dead-ice moraine or ice-walled lake plains. The overall debate is based on the following generalities: aspects of the subglacial and supraglacial system; the relative physical geographic setting; sedimentology; paleontology; and isotope data. Specific, relevant issues include: the type of ice cover that existed over the mounds while being influenced by groundwater during their evolution; mound orientation being similar to the orientation of nearby, elevated moraines; superimposed mounds never appearing upon authentic ice walled lake plains; and the mound’s highly dissimilar relief and shape to that of authentic ice-walled lake plains. Besides this study being a reproval concerning the identification of the lowland, gigantic, orientated DeKalb mounds as a dead-ice moraine, it also dismisses a counter-hypothesis of a glacial ice-walled lake origin for them.

This work is licensed under a Creative Commons Attribution 4.0 License.
  • ISSN(Print): 1916-9779
  • ISSN(Online): 1916-9787
  • Started: 2009
  • Frequency: semiannual

Journal Metrics

(The data was calculated based on Google Scholar Citations)

Google-based Impact Factor (2018): 11.90

h-index (January 2018): 17

i10-index (January 2018): 36

h5-index (January 2018): 13

h5-median(January 2018): 15