Heavy Metal Chemistry of Sediments in Caves of the Springfield Plateau, Missouri-Arkansas-Oklahoma: A Link to Subterranean Biodiversity

We used X-ray fluorescence (XRF) to compare the heavy metal chemistry of sediments in caves in rural and urban areas to the chemistry of sediments from a control cave in a relatively undisturbed watershed in the Springfield (MO) Plateau. Sediment from Smallin Cave near Ozark, MO, the control cave, has the smallest peak sizes for Zn and Mn and a moderately-sized Pb peak. Sediment from the rural cave exhibited larger peaks of Zn and Mn and a smaller Pb peak. Sediment from the urban cave had the largest Zn, Mn and Pb peaks. Interestingly, smaller peak sizes appear to correlate to the presence of aquatic troglobites. The control cave hosts the most diverse troglobitic fauna and has sediment with smaller peak sizes. Ruark caves are rural caves, and are barren of troglobites and have sediment with larger peak sizes. Giboney Cave, an urban cave in Doling Park in Springfield, MO, provides the most interesting evidence. Giboney Cave splits into two branches, each of which has a unique chemical fingerprint. One channel is barren of cave life and has sediment that exhibits large metal peaks. The second channel hosts aquatic troglobites and has sediment that has small metal peaks. These findings are of particular importance because the caves of the Springfield Plateau host abundant troglobitic species, including the endangered Ozarks cavefish (Amblyopsis rosae). Sediment metal concentrations may indicate which cave systems are capable of supporting life, with XRF analysis providing a non-destructive, rapid way to identify such systems

The Vehicle, Fall 2004

Table of Contents Six-Billion to One AgainstRyan Maneypage 5 May 25th, 2004Megan Rankinpage 6 Summer DeliveryAnthony Shootpage 7 A Young Family, Smithland, Kentucky. October 1935.Clementinepage 8 UntitledJonathan M. Cookpage 9 October 23, 2021Ryan Maneypage 10 Last NightKaty Dwigginspage 11 UntitledMegan Rankinpage 12 Clever DisguiseSarah Johnsonpage 13 conspiracy against grandmaClementinepage 14 ThunderKitty Apodacapage 15 UntitledJonathan M. Cookpage 16 Self PortraitAnnette Carlinpage 17 LeavesAnthony Shootpage 18 UntitledKaty Dwigginspage 19 The Woman I Almost UnderstoodGreg Lyonspage 20 Flesh and SandJonathan M. Cookpage 21 Lunch DateAlisa Habelpage 22 Like and Unlike Everyone ElseC. Alan Doughtypage 23 Thankfully SwayedSarah Johnsonpage 24 A Warm Winter DayJoshua D. Andersonpage 25-26 Oak, Maple, SassafrasClementinepage 27-30https://thekeep.eiu.edu/vehicle/1080/thumbnail.jp

Groundwater “fast paths” in the Snake River Plain aquifer: Radiogenic isotope ratios as natural groundwater tracers

Preferential flow paths are expected in many groundwater systems and must be located because they can greatly affect contaminant transport. The fundamental characteristics of radiogenic isotope ratios in chemically evolving waters make them highly effective as preferential flow path indicators. These ratios tend to be more easily interpreted than solute-concentration data because their response to water-rock interaction is less complex. We demonstrate this approach with groundwater {sup 87}Sr/{sup 86}Sr ratios in the Snake River Plain aquifer within and near the Idaho National Engineering and Environmental Laboratory. These data reveal slow-flow zones as lower {sup 87}Sr/{sup 86}Sr areas created by prolonged interaction with the host basalts and a relatively fast flowing zone as a high {sup 87}Sr/{sup 86}Sr area

Groundwater ''fast paths'' in the Snake River plain aquifer: Radiogenic isotope ratios as natural groundwater tracers

Preferential flow paths are expected in many groundwater systems and must be located because they can greatly affect contaminant transport. The fundamental characteristics of radiogenic isotope ratios in chemically evolving waters make them highly effective as preferential flow path indicators. These ratios tend to be more easily interpreted than solute-concentration data because their response to water-rock interaction is less complex. We demonstrate this approach with groundwater {sup 87}Sr/{sup 86}Sr ratios in the Snake River Plain aquifer within and near the Idaho National Engineering and Environmental Laboratory. These data reveal slow-flow zones as lower {sup 87}Sr/{sup 86}Sr areas created by prolonged interaction with the host basalts and a relatively fast flowing zone as a high {sup 87}Sr/{sup 86}Sr area

The Vehicle, Fall 2004

Table of Contents Six-Billion to One AgainstRyan Maneypage 5 May 25th, 2004Megan Rankinpage 6 Summer DeliveryAnthony Shootpage 7 A Young Family, Smithland, Kentucky. October 1935.Clementinepage 8 UntitledJonathan M. Cookpage 9 October 23, 2021Ryan Maneypage 10 Last NightKaty Dwigginspage 11 UntitledMegan Rankinpage 12 Clever DisguiseSarah Johnsonpage 13 conspiracy against grandmaClementinepage 14 ThunderKitty Apodacapage 15 UntitledJonathan M. Cookpage 16 Self PortraitAnnette Carlinpage 17 LeavesAnthony Shootpage 18 UntitledKaty Dwigginspage 19 The Woman I Almost UnderstoodGreg Lyonspage 20 Flesh and SandJonathan M. Cookpage 21 Lunch DateAlisa Habelpage 22 Like and Unlike Everyone ElseC. Alan Doughtypage 23 Thankfully SwayedSarah Johnsonpage 24 A Warm Winter DayJoshua D. Andersonpage 25-26 Oak, Maple, SassafrasClementinepage 27-30https://thekeep.eiu.edu/vehicle/1080/thumbnail.jp