Aqua Regia With ICP-MS Finish
Method selection can be key to achieving exploration success. Sample type, target commodity, and pathfinder elements should all be considered when selecting the most appropriate method for your project. Aqua regia is an excellent exploration tool for various deposit types that involve gold, silver and base metals hosted in sulfide and carbonate minerals.
Aqua Regia With ICP-AES Finish
These methods are economical tools for first pass exploration geochemistry. Data reported from an aqua regia digestion should be considered as representing only the leachable portion of the particular analyte.
Four Acid Digestion With ICP-MS Finish
Four acid digestion quantitatively dissolves nearly all minerals in the majority of geological materials. However, barite, rare earth oxides, columbite-tantalite, and titanium, tin and tungsten minerals may not be fully digested. Despite the potentially incomplete digestion of REEs, the leachable portion of these elements may hold important exploration vectoring information and can be chosen as an add-on.
Intermediate Level Aqua Regia
These packages can be used as an economical alternative to analyzing low grade ore or samples with known mineralization. Data reported from an aqua regia digestion should be considered as representing only the leachable portion of the particular analyte.
Intermediate Level Four Acid Digestion
These packages can be used as an economical alternative to analyzing low grade ore or samples with known mineralization. Four acid digestions are able to dissolve most minerals, but not all elements are quantitatively extracted in some samples.
Portable XRF For Indicative Analysis
Portable XRF may be used to screen large volumes of samples for intermediate to ore grade elements when the standard lab test is relatively costly and time-consuming. The pXRF method must be calibrated for a specific sample suite on an individual project basis. Submitting samples not represented in the calibration suite creates a high risk of inaccurate results, including false positives. ALS offers custom calibration for pXRF on project-specific sample suites, with our rigorous quality standards and XRF expertise ensuring accurate, reliable results. The pXRF instrument can be located in the prep lab nearest your project, or on-site if the project is remote. Contact your local client sevices team for more information.
Many important parameters of mineralizing fluids may be determined from stable isotope ratios. The isotopic alteration halo may extend beyond visible mineralogy changes, creating a larger deposit footprint for easier exploration vectoring.
These methods may be used to date the ages of specific minerals, hydrothermal alteration events, and emplacement of volcanic-plutonic units. Age constraints on important events can help refine the deposit model and identify alteration that did not contribute to mineralization.