HIMU is highly radiogenic
mantle, its high [sup.206]Pb/[sup.204]Pb indicating a source rich in U.
In addition, the lead-lead method provides another calculation that is based on the ratio of radiogenic
[sup.207]Pb to radiogenic
Basis of assumptions about radiogenic
cancers and cancer latency.
Additionally, sulfide minerals usually contain very low concentrations of U and Th and insignificant concentrations of radiogenic
Pb isotopes .
lung cancer as a consequence of radon gas exposure is an example where the calculation of a whole-body equivalent risk is inappropriate.
document the origin of diagenetic fluids of a deeply buried carbonate reservoir in the Tarim Basin in NW China by using a combination of petrology, in situ Secondary Ion Mass Spectrometry (SIMS) analysis, fluid inclusion analysis, and radiogenic
isotope analysis of pore-filling calcite cements.
Late Precambrian activity near Saint John, New Brunswick, in Radiogenic
Age and Isotopic Studies.
lead [sup.204]Pb corrected for common lead.
Clearly, metasomatism coincident with magmatism is important, but it cannot yield the large variations in daughter radiogenic
isotopes observed among islands because they require millions or billions of years to develop from parent isotopes having long half-lives.
elements of Finnish soils and groundwaters.
Both micrite and fracture-vug-fill calcite present much higher [sup.87]Sr/[sup.86]Sr ratio values than Late Ordovician seawater, indicating largely introduced radiogenic
Sr (Figure 9(a)).
The authors are aware that Galicia is, to a certain extent, a problematic place for the application of these methods, because the basement that underlies the Pleistocene record on the Atlantic coast is formed by igneous and metamorphic rocks, which are not the most suitable materials for radiogenic