Results 1 to 10 of about 189,480 (262)
DQPB: software for calculating disequilibrium U–Pb ages [PDF]
Geochronology, 2023 Initial radioactive disequilibrium amongst intermediate nuclides of the U decay chains can have a significant impact on the accuracy of U–Pb ages, especially in young samples.
T. Pollard +7 more
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U-Pb geochronology at 100ppm age uncertainty [PDF]
Goldschmidt2021 abstracts, 2021 n ...
Schaltegger, Urs +7 more
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The effect of low-temperature annealing on discordance of U–Pb zircon ages [PDF]
Scientific Reports, 2021 AbstractDiscordant U–Pb data of zircon are commonly attributed to Pb loss from domains with variable degree of radiation damage that resulted from α-decay of U and Th, which often complicates the correct age interpretation of the sample. Here we present U–Pb zircon data from 23 samples of ca.
Herrmann, Maria +5 more
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Exploring the CAM18 Crystal as a Potential Reference Material for U–Pb Analysis of Zircon
Crystals, 2023 In the process of in situ zircon U–Pb dating, it is an effective means to overcome the matrix effect by using a matrix-matched external reference material.
Wurui Li +4 more
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NanoSIMS and EPMA dating of lunar zirconolite
Progress in Earth and Planetary Science, 2021 Zirconolite is a common Zr-rich accessary mineral in mafic rocks. It is also an ideal U–Pb/Pb–Pb chronometer because it commonly contains high U content (mostly 0.1–10 wt%) and negligible initial Pb.
Nian Wang +4 more
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Yankuang ceshi, 2022 BACKGROUND The Changjiang uranium ore field in the southern margin of the Zhuguangshan complex pluton is a typical granite-type uranium ore field in China. Zircon U-Pb dating has been used to date ore-bearing granites. However, due to the high content of
CHEN Yan +6 more
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New age constraints for metasedimentary rocks in southern Finland [PDF]
Bulletin of the Geological Society of Finland, 2023 Metasedimentary rocks from nine sampling sites in southern Finland and an intermediate dyke in one of these sites were sampled for analysis of U–Pb zircon age and geochemical composition.
Paula Salminen, Matti Kurhila
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In-situ phosphate U-Pb ages of the L chondrites [PDF]
Geochimica et Cosmochimica Acta, 2023 The thermal history of asteroids is recorded by the radioisotopic ages of meteorites that derive from them. Radioisotopic ages may date a number of events, such as the cooling of a parent body during waning radiogenic metamorphism, rapid cooling experienced upon parent body break-up, and/or subsequent collision-induced reheating of material.
Craig Robert Walton +12 more
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A Review of Research Progress on the Analytical Method of Large-n Detrital Zircon U-Pb Geochronology
Yankuang ceshi, 2022 BACKGROUND Detrital zircon U-Pb geochronology is an important tool for identifying sedimentary provenance and determining the maximum depositional age. The numbers of grains for detrital zircon provenance investigations using laser-ablation inductively ...
CHEN Xiyun +4 more
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U-Pb age of titanite from diorit of Osnytsky Block (Volyn Megablock of Ukrainian Shield)
Геологія і корисні копалини Світового океану, 2023 The Osnytsky block is a constituent part of the Osnytsky-Mikashevytsky volcano-plutonic belt. The leading place in the geological structure of the Osnytsky block is occupied by the rock association, which includes a number of plutonic formations from ...
VYSOTSKY O.B. +3 more
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