Saginaw Lobe, buried river valleys, Quaternary diamicton) was determined, its percent coverage was calculated.
The portion of Indiana covered by Wisconsinan glacial deposits was analyzed to determine the relationship between peatland distribution and buried river valleys.
Indiana peatland distribution and buried river valleys.
Similarly, analysis of Schneider & Moore's (1978) commercial peat data shows that these deposits are not significantly more frequent over buried river valleys within the Wisconsinan glaciated region of Indiana (Table 3).
This, however, is probably insignificant and does not explain the scarcity of peatlands and other wetlands in central Indiana where buried river valleys abound.
An estimated 10,000,000 tonnes of potentially diamond-bearing Miocene alluvial gravel is contained within that length of the buried river
valley, averaging 500 metres in width.