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Showing 1 to 20 of 43 for “"Major and trace elements"”.
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Using Strontium Isotopes in Conjunction with Major, and Trace Elements to Identify Water/Rock Interaction in the Upper Kittitas County, Washington
… methodology to identify groundwater sources and track flow paths through water-rock interaction. A wide range of 87Sr/86Sr (0.7040 to 0.7068) in surface waters, springs, and groundwater from wells was found, allowing for identification of the individual signatures of lithologic units. Rock …
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Documenting the Origin of Compositional Diversity of Subduction Zone Magmatism, Alicudi, Aeolian Arc (Southern Tyrrhenian Sea, Italy) Using in situ Plagioclase Data
… processes such as magma recharge, assimilation, and fractional crystallization (RAFC) that occur in subvolcanic magma chamber(s). This study evaluates how magma chamber processes contribute to compositional diversity at Alicudi Volcano, Italy. Analytical and petrographic data from ten samples …
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Stream water and soil water chemistry after the Table Mountain wildfire, Washington, USA
Analyses of major and trace elements, major ions, and nutrient concentrations were made to investigate how stream water and soil water chemistry changed over 16 months following the Table Mountain wildfire. Sites with different burn severity were also compared. The fire occurred in 2012 in Kittitas …
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Controls on the accumulation of organic matter in the Eagle Ford Group, Central Texas, USA.
… the chemostratigraphic character of the Pepper and Eagle Ford Formations in central Texas using major and trace elements, organic matter abundance, and the isotopic and stoichiometric character of organic matter. The chemical data allow the identification of six distinct chemofacies that are …
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Mineralogical, Chemical, and Isotopic (Sr, Pb) Composition of Atmospheric Mineral Dusts in an Ombrotrophic Peat Bog, Southern South America
… archives of atmospheric deposition of many major and trace elements and of mineral dusts. Geochemical studies of major and trace elements, mineralogy of atmospheric dust and their radiogenic isotope compositions in the peat, provide important information about the mineralogical host phases …
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Microanalysis of impactors of the earth and impact products from the moon : the origin and evolution of micrometeorites, and tracking bombardment history through chemical and radioisotopic memories of lunar impact spherules
… study of terrestrially-collected micrometeorites and lunar impact spherules. The purpose of the first project was primarily method development, although a study of micrometeorite petrography, chemistry, atmospheric alteration, and potential origin ensued. A classification system was developed with …
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Microanalysis of impactors of the earth and impact products from the moon : the origin and evolution of micrometeorites, and tracking bombardment history through chemical and radioisotopic memories of lunar impact spherules
… study of terrestrially-collected micrometeorites and lunar impact spherules. The purpose of the first project was primarily method development, although a study of micrometeorite petrography, chemistry, atmospheric alteration, and potential origin ensued. A classification system was developed with …
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Kinetic processes of mantle minerals
… of this study is to investigate the location and the related processes of the transformation boundary from spinel to garnet peridotite facies at subsolidus conditions, because the presence of garnet in melting residues has significant influence to the conclusion drawn from …
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Boron metasomatism in the Alta stock contact aureole, Utah
The effects of fluid evolution and infiltration in the Alta stock contact aureole, Utah, were studied by evaluating chemical additions and depletions in igneous, replacement skarn, and carbonate whole-rock samples. Of the major and trace elements studied, boron proved to be the most interesting …
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Kinetic processes of mantle minerals
… of this study is to investigate the location and the related processes of the transformation boundary from spinel to garnet peridotite facies at subsolidus conditions, because the presence of garnet in melting residues has significant influence to the conclusion drawn from …
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Diverse Primitive Basalts from an Extensional Back-arc Setting: Fort Rock Volcanic Field, Oregon
… (FRVF) is situated in a highly complex volcanic and tectonic extensional back arc setting, influenced by multiple episodes involving the subduction of the Juan de Fuca Plate under the North American Plate, eruptions from the Western and High Cascades, High Lava Plains (HLPs), Newberry, and …
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Geochemistry of Melt Inclusions from the Fondo Riccio and Minopoli 1 Eruptions at Campi Flegrei (Italy)
… site of volcanic activity for more than 60 ka and represents a potential volcanic hazard owing to the large local population. In this study, the geochemistry of the magma associated with two different eruptions at Campi Flegrei has been characterized, with the aim to identify geochemical trends …
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Antarctic Alteration of Meteorites
… have undergone considerable alteration. Understanding the paths of alteration allows reconstruction of original features, but additionally it gives a unique opportunity to examine a natural laboratory of cold, water-restricted alteration environments similar to those on Mars today and in its …
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X-Ray Fluorescence Analysis of Tuscaloosa Marine Shale Cuttings from Horizontally Drilled Wells
… shale deposited at depth of between 10,000 and 20,000 ft near the ancient Gulf of Mexico. The TMS has been gradually developed as a hydrocarbon reservoir in the past several decades. But there are rare researches evaluating geochemical properties based on chemostratigraphy of the TMS. The …
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The evolution of oceanic gabbros : in-situ and ancient examples
… into the accretion of lower oceanic crust and processes of shallow melt-rock reaction at mid-ocean ridges. Major-, trace-elements, and isotopes from whole-rocks and minerals from the Lyngen Gabbro, a 480-My old dismembered ophiolite from the Scandinavian Caledonides, indicate that this …
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Micro PIXE analyses of Furnace and Converter Mattes for the determination of trace element distribution and concentrations
… were performed to investigate the distribution and concentration of trace elements. These levels of sensitivity are beyond that of the electron microprobe. The objective of these analyses was to examine low level concentrations (ppm or ppb) in phases such as alloys, oxides and sulphides. The …
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Intense Shallow Magma Sediment Mingling within Dikes at Guffey Butte Maar, Idaho
The interactions between magma and shallow unconsolidated sediments on the way to the surface influences the eruption behavior and products. Phreatomagmatic eruptions are a result of the interaction of magma and water or wet sediment and their deposits are evidence of this interaction. The relative …
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The Effects of a Dietary Bacterial Protein on Mineral Balance in Rainbow Trout (S. gairdneri Rich.)
… balance of the fish as expressed by the carcass and tissue mineral levels. Supplements of the major and trace elements were added to trout diets in various combinations and with Pruteen, casein or fishmeal as protein sources in order to test the effects of these dietary factors on mineral …
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Bulk Rock Major and Trace element Chemostratigraphy of the Cretaceous Lower Eagle Ford Formation in South Texas
… in South Texas which produces oil, condensate, and gas from its organic-rich shales deposited in the Late Cretaceous. Twenty-three whole rock samples of the Lower Eagle Ford from a 120.85 ft core from La Salle County, Texas were studied to evaluate major and trace elements to examine the …
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The geochemistry and petrogenesis of the Saltpeterkop carbonatite complex near Sutherland, Northern Cape, South Africa
… Complex is a Late Cretaceous (≈76 Ma) volcanic and shallow intrusive magmatic feature located approximately 20 km southeast of Sutherland in the Northern Cape. It is unusual among southern African carbonatite complexes in that it has not been deeply eroded, and retains a significant vestige of …
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