Sulfur Isotope Geochemistry of Sulfide Minerals

Sulfur Isotope Geochemistry of Sulfide Minerals

Sulfur isotope analysis of sulfide and sulfate minerals by continuous flow-isotope ratio mass spectrometry.

A continuous flow method (CF-IRMS) for the rapid determination of the sulfur isotope composition of sulfide and sulfate minerals has significant advantages over the classic extraction method in terms of the reduced sample quantity and a rapid analytical cycle of less than 8 min/ analysis. For optimum performance, the technique is sensitive to a number of operating parameters, including sample w...

Stable isotope geochemistry of sulfur bearing minerals and clay mineralogy of some soils and sediments in Loot Desert, central Iran

Article history: Stable isotope geochemistry Received 15 March 2008 Received in revised form 29 May 2008 Accepted 4 June 2008 Available online 30 June 2008

Isotope Geochemistry

Isotopic analysis can be performed on minerals, rocks, soil, tissue, gases, and liquids – just about anything. In view of the broad possibilities, we will only cover a few generalities here. In most instances, the element to be analyzed must be first isolated and purified before it can undergo isotopic analysis in a mass spectrometer. Purification is necessary to avoid isobaric interferences an...

Geochemistry. The descent of minerals.

E volutionary theory states that some differences between individuals in a population are heritable, so that, when the environment changes, individuals bearing traits that provide the best adaptation to the new environment have the greatest chance for reproductive success. In a recent article in the American Mineralogist (1), Hazen et al. apply the term “evolution” to minerals in a similar mann...