Occurrence of strontium in natural water

Skougstad, Marvin W.; Horr, C.A.

doi:10.3133/cir420

Cited by 22 publications

(27 citation statements)

References 5 publications

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“…Because strontium and calcium are chemically similar, strontium atoms may also be adsorbed on clay particles by ion exchange À0.14 ---(+ value) express about the over-saturated phase, (À value) express about the under-saturated phase, (0) value express about equilibrium phase. (Skougstad and Horr 1963). Ion-exchange processes may thus reduce strontium concentrations in groundwater found in clay-rich sediments.…”

Section: Mineral Saturation Indices Of the Groundwatermentioning

confidence: 98%

Geospatial Information and Environmental Isotopes for Hydrogeological Evaluation: Ras Alam El Rum, Northwestern Coast of Egypt

et al. 2014

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The present study demonstrates the potential of the geospatial information as well as isotopes and chemical analyses to elucidate the hydrogeological setting of the study area. The main objective of this research is to identify factors affecting the occurrence and quality of groundwater in the study area. The Ras Alam El Rum is the pilot area chosen in the northwestern coast of Egypt to evaluate the carbonate aquifer with emphasis on the Middle Miocene aquifer, which has been explored recently. The average of annual precipitation and surface runoff amounts were estimated to indicate possibility of groundwater recharge, where the water-bearing rocks are mainly fractured. The isotope data indicate that the groundwater was derived from rainwater, the recharge source is local precipitation, and no indication of seawater intrusion was recorded. The salinity of the groundwater is attributed to interaction between the water and aquifer rocks represented by limestone, dolomitic limestone, and marl. The mineral indices obtained from the geochemical model reveal that the groundwater is oversaturated with aragonite, calcite, dolomite, strontianite, and barite. The hydrogeological evaluation of the study area led to recommendations to determine of the suitable areas for exploration of the Middle Miocene aquifer and to protect groundwater from deterioration.

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Section: Mineral Saturation Indices Of the Groundwatermentioning

confidence: 98%

Geospatial Information and Environmental Isotopes for Hydrogeological Evaluation: Ras Alam El Rum, Northwestern Coast of Egypt

et al. 2014

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“…The median river and lake water SrlCa ratio is 2.3 (Table 1). Data are from Alexander et al (1954), Odum (1957a), Feulner and Hubble (1960)) Skougstad and Horr (1963), Faure et al (1967), Wadleigh et al ( 1985), Goldstein and Jacobsen (1987)) Palmer and Edmond ( 1989). and .…”

Section: Freshwater Endmembermentioning

confidence: 99%

Paleosalinities in ancient brackish water systems determined by 87Sr/86Sr ratios in carbonate fossils: A case study from the Western Canada sedimentary basin

Holmden

Creaser

Muehlenbachs

1997

Geochimica et Cosmochimica Acta

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“…These results are in agreement with other studies which indicate that the accumulation of Sr and Ca in biota depends on the availability of these elements in the environment and the biota's position in the food chain (Elias et al 1982;Blum et al 2000). Overall, our results indicate that regional Sillen and Kavanagh (1982) and Skougstad and Horr (1963) Sr/Ca ratios in surface water which are strongly associated with location are the best determinants of Sr and Sr/Ca ratios in birds. However, because of the biopurification of Ca or discrimination against Sr (i.e., Ca becomes more purified as it moves up in the food chain; Elias et al 1982), the species' food habits are highly influential in determining the total amount of Sr, Ca, and Sr/Ca ratios accumulated in the eggshell.…”

Section: Discussionmentioning

confidence: 82%

Regional and interspecific variation in Sr, Ca, and Sr/Ca ratios in avian eggshells from the USA

et al. 2011

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To examine regional variation in strontium (Sr), which at high concentrations may reduce eggshell quality, increase egg breakage and reproductive failure, we analyzed Sr, and calcium (Ca) concentrations and Sr/Ca ratios in eggshells from 20 avian species from California, Texas, Idaho, Kansas, and Michigan. In addition, we included data previously reported from Arizona to expand the regional comparisons and to better establish patterns of Sr, and Sr/Ca ratios in bird species across the United States. We found Sr concentrations varied significantly among regions, among species, and among foraging guilds; this variability is strongly influenced by the Sr/Ca ratios in surface water from locations close to the region where the eggshells were collected. Sr concentrations and Sr/Ca ratios were significantly higher in bird eggshells from the Volta wildlife region in the San Joaquin Valley, California and in various locales from Arizona. Sr concentrations and Sr/Ca ratios in bird eggshells from other locations in the USA were lower than those detected in these two regions. Among foraging guilds, invertivores had the highest Sr concentrations and Sr/Ca ratios and carnivores had the lowest. In general, the Sr/Ca ratio increased strongly with increasing Sr concentrations (R(2) = 0.99, P < 0.0001). There was a significant correlation (R(2) = 0.58, P < 0.0001) between Sr/Ca ratios in water and the average Sr/Ca ratios in eggshells suggesting that these values could be determined from Sr/Ca ratios in water. Eggshell thickness was poorly correlated with Sr (R(2) = 0.03) but had a significant and positive correlation with Ca and was more properly correlated by a quadratic equation (R(2) = 0.50, Thickness = 2.13 - 0.02Ca - 3.07 * 10(-5)Ca(2)). Our study provides further evidence that Sr accumulates significantly in the avian eggshell, in some regions at concentrations which could be of concern for potential negative effects on reproduction. We suggest that when assessing the effects of metals on avian reproduction in regions with high Sr deposits in rock and soil, Sr concentrations in the eggshell also should be measured to evaluate additional effects on thickness and reproduction.

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Occurrence of strontium in natural water

Abstract: Less than 0.50 ppm 0.5 to 1.5 ppm More than 1.5 ppm Strontium zone boundary 22 Sampling site number Figure 1. Map of the United States showing concentration of strontium in surface water at selected sites

Cited by 22 publications

References 5 publications

Geospatial Information and Environmental Isotopes for Hydrogeological Evaluation: Ras Alam El Rum, Northwestern Coast of Egypt

Geospatial Information and Environmental Isotopes for Hydrogeological Evaluation: Ras Alam El Rum, Northwestern Coast of Egypt

Paleosalinities in ancient brackish water systems determined by 87Sr/86Sr ratios in carbonate fossils: A case study from the Western Canada sedimentary basin

Regional and interspecific variation in Sr, Ca, and Sr/Ca ratios in avian eggshells from the USA

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