Possible Earthquakes Recorded in Stalagmites from a Cave in South‐Central Indiana Available to Purchase

Sources and Changes in Groundwater Quality with Increasing Urbanization, Northeastern Illinois Available to Purchase

Impacts of Road Salt Runoff on Water Quality of the Chicago, Illinois, Region Available to Purchase

Chemical and isotopic indicators of groundwater evolution in the basal sands of a buried bedrock valley in the midwestern United States: Implications for recharge, rock-water interactions, and mixing Available to Purchase

Major Earthquakes Recorded by Speleothems in Midwestern U.S. Caves Available to Purchase

Mineralogy of the clay-sized fraction of the Davis Shale, Southeast Missouri; alteration associated with a mississippi valley-type ore deposit Available to Purchase

Glaciation and saline-freshwater mixing as a possible cause of cave formation in the eastern midcontinent region of the United States: A conceptual model Available to Purchase

Distribution of selected elements in the shale of the Davis Formation, Buick Mine area, Viburnum Trend, Southeast Missouri Available to Purchase

Volcanic stratigraphy of the Pilot Knob iron deposits, Iron County, Missouri Available to Purchase

Genetic implications of halide enrichment near a mississippi valley-type ore deposit Available to Purchase