Comparison of Soil Geochemical Characteristics and Isotopic
Isotopic and Geochemical Analysis of Nitrate Contaminated Groundwater in Edgar, Nebraska
... Nitrogen isotope values of typical of nitrogen fertilizers generally range from -5 to +8‰, though there are many other sources of nitrate that also partially fall into this range such as ammonia fertilizer, ammonium and ...
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An isotopic and geochemical study of runoff in the Apex River watershed, Baffin Island, N.W.T.
... For comparison purposes, hydrographs for all the years of record (1973-83) are illustrated in Appendix I along with the mean daily temperature and precipitation conditions during these ...
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Stable carbon isotopic studies of microbial lipids from distinct geochemical marine environments
... in comparison to the sediment surface; this negative deviation is consistent with the addition of hydrolytic products from the 13 C-depleted IPL caldarchaeol ...degradation. Isotopic analysis of archaeol ...
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Geochemical and isotopic variations in shallow groundwater in areas of the Fayetteville Shale development, north-central Arkansas
... from Airgas (Durham, NC) and Isometric Instruments (Victoria, BC). To confirm the accuracy of the CRDS results, a set of 49 field duplicate groundwater samples was collected and analyzed at Iso- tech using gas ...
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Geochemical and mineralogical characteristics of the soil in the area of Velika Gorica watter wells : master’s thesis
... were soil samples of the area of Velika Gorica water ...the geochemical and mineralogical characteristics of the soil in the area of Velika Gorica water ...of soil samples was conducted ...
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Regional Geochemical Characteristics and Influence Factors of Soil Elements in the Pearl River Delta Economic Zone, China
... the concentration of the elements. Materials from the upstream catchment area of the Pearl River system af- fected the geochemical characteristics of the delta plain soil elements [22]. Pearl River ...
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Geochemical Characteristics of Serpentinite Soils from Malaysia
... major plant nutrients such as nitrogen, potassium and phosphorus. In contrast, they are characterised by large amounts of iron and magnesium. It has been well documented that serpentinized-ultramafic rocks produce a high ...
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Soil Geochemical Characteristics of Eucalyptus Plantations and Adjoining Natural Forest Patches in Central Hilly Districts of Sri Lanka
... rests. Today, the latter covers about 0.7 million hectares of the total land area of the country (National Policy Planning Department, 2002). The planting of exotic species such as Euca- lyptus is encouraged due to its ...
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Comparison of extractable soil carbon and dissolved organic carbon by their molecular characteristics
... by soil extraction in CaCl 2 , where the M r and M w approximate values were ...from soil samples 850–1770 times (mean 1254 ± 387) more humic substances than ...by soil extracts and HS in DOC, ...
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Characteristics of stable carbon isotopic composition of shale gas
... carbon isotopic compositions of gas hydrocarbons were measured to investigate their evolving characteristics and the possible reasons for isotope ...carbon isotopic compositions of shale gasses were ...
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Geochemical and anthropogenic soil loads by potentially risky elements
... the comparison of As solubility in the following extracts, we concluded, that increased As solubility in 2M HNO 3 and EDTA in the soil of Klínovèík locality is the consequence of the coincidence of geogenic ...
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Geochemical characteristics of agricultural soils, Assiut governorate, Egypt
... agricultural soil heavy metals in different localities in ...agricultural soil of Aswan. Also, the agricultural soil was found polluted with Cd in Kafr El-Sheikh, El-Fayoum, El-Mehala El-Kobra, and ...
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Estimation of infiltration models parameters and their comparison to simulate the onsite soil infiltration characteristics
... about soil characteristics and site-specific final steady infiltration rate could help to increase the irrigation water use efficiency and decrease water losses in agricultural ...
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Geochemical and Sr-O isotopic constraints on magmatic differentiation at Gede volcanic complex, west Java, Indonesia.
... Macpherson CG, Hilton DR, Mattey DP, Sinton JM (2000). Evidence for an 18 O- depleted mantle plume from contrasting 18 O/ 16 O ratios of back-arc lavas from the Manus Basin and Mariana Trough. Earth Planet Sci Lett ...
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Incorporating Recent Geochemical and Isotopic Constraints in Age Dating the Waters of Hot Springs National Park, Arkansas
... general isotopic values for soil dissolved inorganic carbon and mineral carbon instead of obtaining actual values from the study ...dioxide, soil-gas carbon dioxide from plant decay, and inorganic ...
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K Ar age, geochemical, and Sr Pb Isotopic compositions of keban magmatics, elazig, EasternAnatolia, Turkey
... All granitoids in this belt are intruded into metamor- phosed platform carbonates and ophiolites. Keban magmatics, which have volcanic-arc magma- tics characteristics (Figure 11), are in harmony with all these ...
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The IRHUM (Isotopic Reconstruction of Human Migration) database – bioavailable strontium isotope ratios for geochemical fingerprinting in France
... Sr isotopic ratios of natural materials reflect the sources of strontium available during their forma- ...and soil samples (Pangaea data repository ...
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A geochemical approach to unravelling ice sheet history using both Tellus and Tellus Border soil geochemical data
... its geochemical characteristics from its parent material (Shilts, 1976) and these characteristics are in turn dependent on the type of source bedrock, its mineral content and its susceptibility to ...
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Geochemical and Petrological characteristics of the Granitoid Complex of Boroujerd,Western Iran
... In addition, the Boroujerd granitoids are high-K, I-type, calc alkaline rocks, characterized by pronounced negative Ba, Sr, Nb, P and Ti anomalies, enriched in Th, K, Ce, La and Nd, and have Nd (170) values of -3.62 to ...
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Isotopic Exchange of Phosphates in Soil
... the isotopic exchangeability of phosphate residues in acid soils.. 264 ROTHAMSTED REPORT FOR IS60[r] ...
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