Folders: ROOT > ScienceBase Catalog > ReSciColl Archive > Alaska Division of Geological & Geophysical Surveys > Collection of geochemical data from Alaska (DGGS) ( Show direct descendants )
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ROOT _ScienceBase Catalog __ReSciColl Archive ___Alaska Division of Geological & Geophysical Surveys ____Collection of geochemical data from Alaska (DGGS) Filters
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130 rock samples were analyzed for major and minor oxides using X-ray Fluorescence Spectroscopy following a lithium metaborate fusion. 110 rock samples were analyzed for trace elements using X-ray Fluorescence Spectroscopy on a pressed powder pellet. 7 samples were analyzed for iron oxide using titration.
Categories: Physical Item;
Tags: Geochemical Sample
141 samples were analyzed for silver, copper and lead using Atomic Absorption Spectroscopy after aqua regia digestion and for trace elements using Instrumental Nuetron Activation Analysis. 141 samples were analyzed for tin using X-ray Fluorescence Spectroscopy after pressed pellet preparation. Variable detection limits due to sample composition.
Categories: Physical Item;
Tags: Geochemical Sample
141 samples were analyzed for silver, copper and lead using Atomic Absorption Spectroscopy after aqua regia digestion and for trace elements using Instrumental Nuetron Activation Analysis. 141 samples were analyzed for tin using X-ray Fluorescence Spectroscopy after pressed pellet preparation. Variable detection limits due to sample composition.
Categories: Physical Item;
Tags: Geochemical Sample
141 samples were analyzed for silver, copper and lead using Atomic Absorption Spectroscopy after aqua regia digestion and for trace elements using Instrumental Nuetron Activation Analysis. 141 samples were analyzed for tin using X-ray Fluorescence Spectroscopy after pressed pellet preparation. Variable detection limits due to sample composition.
Categories: Physical Item;
Tags: Geochemical Sample
141 samples were analyzed for silver, copper and lead using Atomic Absorption Spectroscopy after aqua regia digestion and for trace elements using Instrumental Nuetron Activation Analysis. 141 samples were analyzed for tin using X-ray Fluorescence Spectroscopy after pressed pellet preparation. Variable detection limits due to sample composition.
Categories: Physical Item;
Tags: Geochemical Sample
51 rock samples were analyzed for major and minor oxides using X-ray Fluorescence Spectrometry following a lithium metaborate fusion. 51 rock samples were analyzed for trace elements using Inductively Coupled Plasma - Mass Spectroscopy after lithium metaborate fusion.
Categories: Physical Item;
Tags: Geochemical Sample
Rock samples were analyzed using inductively coupled plasma. Samples with highly anomalous visible quantities of gold, silver, platinum group elements, copper, lead, zinc, or antimony were further analyzed by fire assay/or atomic absorption.
Categories: Physical Item;
Tags: Geochemical Sample
Rock samples were analyzed using inductively coupled plasma. Samples with highly anomalous visible quantities of gold, silver, platinum group elements, copper, lead, zinc, or antimony were further analyzed by fire assay/or atomic absorption.
Categories: Physical Item;
Tags: Geochemical Sample
Rock samples were analyzed by inductively coupled plasma (ICP) spectroscopy. Samples with visible quantities of either gold, silver, platnium group elements, copper, lead, zinc, tin, molybdemum, chromium, nickel, or antimony had fire assay or atomic absorption analyses performed for those elements.
Categories: Physical Item;
Tags: Geochemical Sample
Whole-rock major oxide analyses were performed by using atomic absorption by Bondar-Clegg. An unknown laboratory performed trace element analysis for cobalt, copper, nickel, and lead by atomic absorption. Gold, silver, cobalt, chromium, copper, and nickel content was determined by atomic absorption with results reported in ppm. The samples were preconcentrated by fire assay before being analyzed for gold, platinum, palladium, iridium, osmium, rhodium, ruthenium by inductively coupled plasma.
Categories: Physical Item;
Tags: Geochemical Sample
Rock samples were analyzed by inductively coupled plasma (ICP) spectroscopy. Samples with visible quantities of either gold, silver, platnium group elements, copper, lead, zinc, tin, molybdemum, chromium, nickel, or antimony had fire assay or atomic absorption analyses performed for those elements.
Categories: Physical Item;
Tags: Geochemical Sample
Rock samples were analyzed by inductively coupled plasma (ICP) spectroscopy. Samples with visible quantities of either gold, silver, platnium group elements, copper, lead, zinc, tin, molybdemum, chromium, nickel, or antimony had fire assay or atomic absorption analyses performed for those elements.
Categories: Physical Item;
Tags: Geochemical Sample
Slab XRF analysis - The XRF analyses were run on a PANalytical Axios spectrometer using SuperQ software. Nb, Rb, Sr, Y, and Zr were measured using Super's 37mmRbSrYZr routine software program; other elements were measured with the IQ+37mmVac software program. The 37mmRbSrYZr routine uses specific pre-determined peak and background positions for which x-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak is used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities are computed and converted to concentrations using calibration curves employing at least 10 natural rock standards.
Categories: Physical Item;
Tags: Geochemical Sample
Slab XRF analysis - The XRF analyses were run on a PANalytical Axios spectrometer using SuperQ software. Nb, Rb, Sr, Y, and Zr were measured using Super's 37mmRbSrYZr routine software program; The 37mmRbSrYZr routine uses specific pre-determined peak and background positions for which x-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak is used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities are computed and converted to concentrations using calibration curves employing at least 10 natural rock standards.
Categories: Physical Item;
Tags: Geochemical Sample
Slab XRF analysis - The XRF analyses were run on a PANalytical Axios spectrometer using SuperQ software. Nb, Rb, Sr, Y, and Zr were measured using Super's 37mmRbSrYZr routine software program; other elements were measured with the IQ+37mmVac software program. The 37mmRbSrYZr routine uses specific pre-determined peak and background positions for which x-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak is used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities are computed and converted to concentrations using calibration curves employing at least 10 natural rock standards.
Categories: Physical Item;
Tags: Geochemical Sample
Slab XRF analysis - The XRF analyses were run on a PANalytical Axios spectrometer using SuperQ software. Nb, Rb, Sr, Y, and Zr were measured using Super's 37mmRbSrYZr routine software program; other elements were measured with the IQ+37mmVac software program. The 37mmRbSrYZr routine uses specific pre-determined peak and background positions for which x-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak is used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities are computed and converted to concentrations using calibration curves employing at least 10 natural rock standards.
Categories: Physical Item;
Tags: Geochemical Sample
Slab XRF analysis - The XRF analyses were run on a PANalytical Axios spectrometer using SuperQ software. Nb, Rb, Sr, Y, and Zr were measured using Super's 37mmRbSrYZr routine software program; The 37mmRbSrYZr routine uses specific pre-determined peak and background positions for which x-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak is used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities are computed and converted to concentrations using calibration curves employing at least 10 natural rock standards.
Categories: Physical Item;
Tags: Geochemical Sample
Slab XRF analysis - The XRF analyses were run on a PANalytical Axios spectrometer using SuperQ software. Nb, Rb, Sr, Y, and Zr were measured using Super's 37mmRbSrYZr routine software program; The 37mmRbSrYZr routine uses specific pre-determined peak and background positions for which x-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak is used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities are computed and converted to concentrations using calibration curves employing at least 10 natural rock standards.
Categories: Physical Item;
Tags: Geochemical Sample
Slab XRF analysis - The XRF analyses were run on a PANalytical Axios spectrometer using SuperQ software. Nb, Rb, Sr, Y, and Zr were measured using Super's 37mmRbSrYZr routine software program; other elements were measured with the IQ+37mmVac software program. The 37mmRbSrYZr routine uses specific pre-determined peak and background positions for which x-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak is used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities are computed and converted to concentrations using calibration curves employing at least 10 natural rock standards.
Categories: Physical Item;
Tags: Geochemical Sample
A calcined or ignited sample (0.9 g) is added to 9.0g of Lithium Borate Flux (50% - 50% Li2 B4 O7 - LiBO2), mixed well and fused in an auto fluxer between 1050 - 1100 degrees Celsius. A flat molten glass disc is prepared from the resulting melt. This disc is then analyzed by X-ray fluorescence spectrometry.
Categories: Physical Item;
Tags: Geochemical Sample
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