A correlation has previously been noted between extremely high-uranium concentrations in
zircon and apparent U/Pb age as measured in ion microprobe analysis. Here we present …

Abstract High-purity quartz (SiO 2) is an important material widely used in many industries,
including semiconductor technology, telecommunication, and optics. The content and …

The phenomenon of deficient electron microprobe analyses, with sums of analyzed
constituents often below 95wt%, is assigned to the analysis of altered, porous minerals. With …

Ti site occupancy in zircon (ZrSiO4) is fundamental to thermobarometry because substitution
mechanisms control Ti content–temperature relations. Here we describe the results of three …

The annealing of radiation damage in zircon by low-energy electron irradiation was
explored systematically. Natural zircon samples spanning a wide range of self-irradiation …

Crystals of synthetic monazite-(Ce), and foils of the same material 1 μm thick, were irradiated
with 1, 3.5, and 7 MeV Au ions, with total fluences in the range 0.6–51× 1013 ions/cm2. The …

Although quartz is one of the most abundant minerals in many rock types, it has not been the
focus of in situ quantitative chemical analysis by electron microprobe for a long time. This …

Natural and synthetic crystalline α-quartz, as well as synthetic SiO 2 glass, were irradiated
with different doses of 8.8 MeV He 2+ ions. The irradiation-induced alteration was …

In this paper, zonation patterns of trace elements in fluorapatite are discussed that were
visualized using four analytical techniques, namely back-scattered electrons (BSE) and …