Digital representation of a map showing the thickness and character of Quaternary sediments in the glaciated United States east of the Rocky Mountains

Estimating selected low-flow frequency statistics and harmonic-mean flows for ungaged, unregulated streams in Indiana

“…The statewide low-flow frequency M1D10Y, M7D10Y, and M30D10Y estimating equations and the QAH estimating equations for the Central region include the new texture-based estimates of hydraulic conductivity of the unconsolidated deposits derived from the digital well-log records (K1 or K2) combined with the estimate of sediment permeability based on surficial deposits (QSSPERMTHK) defined by Soller and Packard (1998). Although these estimated hydraulic conductivities have some similarities in the calculation methods, they were estimated independently from different source data-K1 and K2 from observed characteristics of unconsolidated deposits at depth, whereas QSSPERMTHK is mostly based on characteristics of the surficial deposits.…”

“…where the drainage-basin areal fractions of Quaternary surficial sediment types and thicknesses were computed in ArcMap from USGS Digital Data Series DDS 38 (Soller and Packard, 1998).…”

The southern Laurentide Ice Sheet

“…All of the southern LIS is covered by these maps, and although they were in most cases compiled from older mapping, they represent the most up-to-date regional maps available. Soller (1998) and Soller & Packard (1998) …”

Microbiological quality of water from noncommunity supply wells in carbonate and crystalline aquifers of Pennsylvania

“…1). In some areas of the State, unconsolidated materials such as sand and gravel (Berg and others, 1980;Soller and Packard, 1998).…”

“…These areas form the fourth general aquifer type discussed herein (unconsolidated surficial aquifers) (Soller and Packard, 1998).…”