U-th-pb dating

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Loss leakage of lead from the sample will result in a discrepancy in the ages determined by each decay scheme. The weathered whole-rock samples all of course come from Koongarra itself, and consist of secondary ore samples from the weathered schist zone, plus weathered schist samples that contain U dispersed down-slope by ground waters moving through the weathered rock. The net result has been the complete destruction of the uraninite in what was the top of the No. But since that latter result has no apparent geological meaning, because it also cannot be correlated with any known geological event, nothing then is certain at all from any of these U-Th-Pb isotopic studies of the Koongarra ores, rocks and surrounding soils. Furthermore, Dickson et al.

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Further assessment of stable lead isotope measurements for uranium exploration, Pine Creek Geosyncline, Northern Territory, Australia.

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U-Th-Pb Dating

Articles with short description All articles with unsourced statements Articles with unsourced statements from January Wikipedia articles needing clarification from October In the conclusion to a recent paper exposing shortcomings and criticising the validity of the popular rubidium-strontium Rb-Sr isochron method, Zheng wrote:. Snelling 24 has already highlighted a telling omission by Hills and Richards. It is accompanied by hematite staining of the schists, the more intense hematite alteration in and near the reverse fault breccia being due to hematite replacement of chlorite. But we cannot assume responsibility for, nor be taken as endorsing in any way, any other content or links on any such site. Uranium2:

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