Academic literature on the topic 'U 238-pb 206'

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Journal articles on the topic "U 238-pb 206"

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Huang, Yong-Shu, Qiu-Li Li, Yu Liu, Ping-Ping Liu, Sun-Lin Chung, and Xian-Hua Li. "238U–206Pb dating of U-series disequilibrium zircons by secondary ion mass spectrometry." Journal of Analytical Atomic Spectrometry 36, no. 5 (2021): 999–1006. http://dx.doi.org/10.1039/d0ja00510j.

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Theoretical and analytical methods for <sup>238</sup>U–<sup>206</sup>Pb dating of U-series disequilibrium zircons by secondary ion mass spectrometry are developed. U–Pb dates improve age precision 3 times better than U–Th dating for zircon &gt;150 ka.
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Chew, David M., Joseph A. Petrus, Gavin G. Kenny, and Niall McEvoy. "Rapid high-resolution U–Pb LA-Q-ICPMS age mapping of zircon." Journal of Analytical Atomic Spectrometry 32, no. 2 (2017): 262–76. http://dx.doi.org/10.1039/c6ja00404k.

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Xie, Lie-Wen, Jin-Hui Yang, Qing-Zhu Yin, Yue-Heng Yang, Jing-Bo Liu, and Chao Huang. "High spatial resolution in situ U–Pb dating using laser ablation multiple ion counting inductively coupled plasma mass spectrometry (LA-MIC-ICP-MS)." Journal of Analytical Atomic Spectrometry 32, no. 5 (2017): 975–86. http://dx.doi.org/10.1039/c6ja00387g.

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A new LA-MIC-ICP-MS analytical technique has been developed for the rapid measurement of <sup>206</sup>Pb/<sup>238</sup>U zircon age (&lt;1%, 2s) at a high spatial resolution. We show that this technique can be routinely employed to date U–Pb in small and/or complex zircons, providing a powerful tool for geochronology.
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Allner, Steffen, Joachim Koch, Simon E. Jackson, and Detlef Günther. "Effects of H2O- and O2-containing He carrier gases on the 206Pb/238U system bias and down-hole fractionation in LA-ICPMS of zircon." Journal of Analytical Atomic Spectrometry 32, no. 11 (2017): 2238–45. http://dx.doi.org/10.1039/c7ja00017k.

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The effects of He + X (X = H<sub>2</sub>O or O<sub>2</sub>) carrier gases on the <sup>206</sup>Pb/<sup>238</sup>U system bias and down-hole fractionation in LA-ICPMS of natural zircon and NIST SRM610 are reported.
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Pomiès, C., B. Hamelin, J. Lancelot, and R. Blomqvist. "207 Pb/ 206 Pb and 238 U/ 230 Th dating of uranium migration in carbonate fractures from the Palmottu uranium ore (southern Finland)." Applied Geochemistry 19, no. 3 (2004): 273–88. http://dx.doi.org/10.1016/s0883-2927(03)00134-3.

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MARK, Darren F., Clive M. RICE, Malcolm HOLE, and Dan CONDON. "Multi-chronometer dating of the Souter Head complex: rapid exhumation terminates the Grampian Event of the Caledonian Orogeny." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 111, no. 2 (2020): 95–108. http://dx.doi.org/10.1017/s1755691020000043.

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ABSTRACTThe Souter Head sub-volcanic complex (Aberdeenshire, Scotland) intruded the high-grade metamorphic core of the Grampian Orogen at 469.1 ± 0.6 Ma (uranium-238–lead-206 (238U–206Pb) zircon). It follows closely peak metamorphism and deformation in the Grampian Terrane and tightly constrains the end of the Grampian Event of the Caledonian Orogeny. Temporally coincident U–Pb and argon/argon (40Ar/39Ar) data show the complex cooled quickly with temperatures decreasing from ca.800 °C to less than 200 °C within 1 Ma. Younger rhenium–osmium (Re–Os) ages are due to post-emplacement alteration of
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Воробьев, А. С., А. М. Гагарский, О. А. Щербаков, Л. А. Вайшнене, А. Л. Барабанов та Т. Е. Кузьмина. "Анизотропия угловых распределений осколков деления 232 Th, 233 U, 235 U, 238 U, 239 Pu, 237 Np, Pb и 209 Bi нейтронами промежуточных энергий 1–200 МэВ". Известия Российской академии наук. Серия физическая 84, № 10 (2020): 1451–57. http://dx.doi.org/10.31857/s0367676520100294.

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Duhan, Sukhvinder S., Manjeet Singh, Rajesh Kharab, and H. C. Sharma. "Finite Range Effects on Fusion and/or Breakup of 6 He+ 238 U and 11 Li+ 208 Pb Systems." Communications in Theoretical Physics 55, no. 4 (2011): 649–54. http://dx.doi.org/10.1088/0253-6102/55/4/24.

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KIM*, Guinyun, Haladhara NAIK, Ashok GOSWAMI, V. T. NIMJE, and K. C. MITTAL. "Activity on Mass Yield Distribution in the Photon-induced Fission of $^{232}$Th, $^{238}$U, $^{mathrm{nat}}$Pb, and $^{209}$Bi at the Pohang Accelerator Laboratory." New Physics: Sae Mulli 65, no. 11 (2015): 1041–48. http://dx.doi.org/10.3938/npsm.65.1041.

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Day, James M. D., and Frederic Moynier. "Evaporative fractionation of volatile stable isotopes and their bearing on the origin of the Moon." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2024 (2014): 20130259. http://dx.doi.org/10.1098/rsta.2013.0259.

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The Moon is depleted in volatile elements relative to the Earth and Mars. Low abundances of volatile elements, fractionated stable isotope ratios of S, Cl, K and Zn, high μ ( 238 U/ 204 Pb) and long-term Rb/Sr depletion are distinguishing features of the Moon, relative to the Earth. These geochemical characteristics indicate both inheritance of volatile-depleted materials that formed the Moon and planets and subsequent evaporative loss of volatile elements that occurred during lunar formation and differentiation. Models of volatile loss through localized eruptive degassing are not consistent w
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Dissertations / Theses on the topic "U 238-pb 206"

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Toulhoat, Pierre. "Hydrogeochimie de l'uranium, de ses descendants et d'elements associes (lanthanides) : application a la prospection miniere." Paris 6, 1987. http://www.theses.fr/1987PA066648.

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On etudie le comportement de l'uranium et de ses descendants dans les eaux naturelles et on quantifie les phenomenes de fixation en presence de complexants en solution. D'autre part, dans un but de prospection, on etudie les traceurs de mineralisations que sont **(234)u et **(206)pb, les phenomenes d'adsorption/desorption gouvernant en grande partie les modeles de prospection proposes, bases sur la mesure des rapports d'activite **(234)u/**(236)u et de la composition isotopique du plomb dans les eaux
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Alexandrov, Pavel. "Géochronologie U/Pb et ⁴⁰ Ar/ ³⁹ Ar de deux segments de la chaîne varisque : le haut limousin et les pyrénées orientales." Vandoeuvre-les-Nancy, INPL, 2000. http://www.theses.fr/2000INPL062N.

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Différents corps métamorphiques et magmatiques dans leLlimousin et dans les Pyrénées orientales ont été datés par la méthode u/pb à la microsonde ionique et 4 0ar/ 3 9ar sur monograin. Les résultats permettent d'avancer de nouvelles idées sur l'évolution orogénique de ces segments de la chaîne varisque. 1. Pyrénées orientales. L'orthogneiss de canigou-caranca a été daté par la méthode u/pb à la microsonde ionique sur zircons selectionnes. Les âges 2 0 6pb/ 2 3 8u des trois echantillons analyses varient entre 460 et 500 ma. Cet âge invalide le modèle classique de disposition en socle et couvert
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Conference papers on the topic "U 238-pb 206"

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Röttger, S., M. S. Allie, F. D. Brooks, et al. "Measurement of [sup 235]U, [sup 238]U, [sup 209]Bi and [sup nat]Pb fission cross sections using quasi-monenergetic neutrons with energies from 30 MeV to 200 MeV." In 4TH INTERNATIONAL WORKSHOP ON NUCLEAR FISSION AND FISSION-PRODUCT SPECTROSCOPY. AIP, 2009. http://dx.doi.org/10.1063/1.3258256.

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Reports on the topic "U 238-pb 206"

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Patin, Joshua Barnes. Experimental Cross Sections for Reactions of Heavy Ions and 208Pb, 209Bi, 238U, and 248Cm Targets. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/799575.

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