“…5d) while the thorianite-uraninite typically was present as smaller grains (inclusions) within brannerite. Energy Dispersive (ED) analysis of the brannerite indicated a composition rich in thorium, consistent with the Crockers Well brannerite commonly being reported as Thbrannerite (Whittle, 1954;Ashley, 1984;Lumpkin et al, 2012). Throughout the sample there was clear evidence for alteration of the Th-brannerite e.g.…”
“…5d) while the thorianite-uraninite typically was present as smaller grains (inclusions) within brannerite. Energy Dispersive (ED) analysis of the brannerite indicated a composition rich in thorium, consistent with the Crockers Well brannerite commonly being reported as Thbrannerite (Whittle, 1954;Ashley, 1984;Lumpkin et al, 2012). Throughout the sample there was clear evidence for alteration of the Th-brannerite e.g.…”
“…Units divided between the EGC and MPP (abbreviations as for Table I) and listed in geochronological order. Data from [35][36][37][38][39] and unpublished data. m-3 for tholeiitic basalts and 2.1 µW m-3 for shales, to 2.5 µW m-3 for granites [40,41].…”
Section: Enrichment In Crustal Heat Productionmentioning
confidence: 99%
“…4. Data from [35][36][37][38][39]; unpublished data. n = number of samples used to calculate average concentrations of U, Th and K20.…”
Section: Enrichment In Crustal Heat Productionmentioning
confidence: 99%
“…In order to evaluate this possibility, we have compiled all existing geochemical data for Archaean to Mesoproterozoic lithologies from South Australia. Heat production values have been calculated as present day averages from U, Th and K20 geochemical analyses (data from [35][36][37][38][39]; unpublished data). U, Th and K concentrations were obtained from whole rock powders using a X-ray fluorescence spectrometer.…”
Section: Enrichment In Crustal Heat Productionmentioning
confidence: 99%
“…[43]). The Nd isotopic record of Archaean-Mesoproterozoic granites from the SAHF A displays a large range in initial ENd from 2.8 to -11.1, suggesting considerable variations in the proportion and isotopic composition of crust and juvenile mantle material within these rocks [35][36][37][38][39]44]. Of particular interest are the initial ENd values of high heatproducing granites of the Mount Painter Province, which are quite high and show very limited variation from -3.2 to -0.5.…”
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.