Results 81 to 90 of about 461 (132)
RiMG Short Course on Petrochronology: Methods and Applications [PDF]
Elements, 2017 openaire +1 more source
Impact of intragrain chemical heterogeneities on <sup>40</sup>Ar/<sup>39</sup>Ar and <sup>87</sup>Rb-<sup>87</sup>Sr white mica dates. [PDF]
Contrib Mineral PetrolJakobsson V +7 more
europepmc +1 more source
Significant Ages—An Introduction to Petrochronology
Reviews in Mineralogy and Geochemistry, 2017 Question : Why “Petrochronology”? Why add another term to an already cluttered scientific lexicon? Answer : Because petrologists and geochronologists need a term that describes the unique, distinctive way in which they apply geochronology to the study of igneous and metamorphic processes. Other terms just won’t do.
Martin Engi +2 more
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Diffusion: Obstacles and Opportunities in Petrochronology
Reviews in Mineralogy and Geochemistry, 2017 Many of the approaches in petrochronology are rooted in the assumption of equilibrium. Diffusion is an expression of disequilibrium: the movement of mass in response to chemical potential gradients, and isotopes in response to isotopic gradients. It is extremely important that we be aware of how the effects of diffusion can place obstacles across our ...
Matthew J Köhn +1 more
exaly +5 more sources
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Electron Microprobe Petrochronology
Reviews in Mineralogy and Geochemistry, 2017The term petrochronology has increasingly appeared in publications and presentations over the past decade. The term has been defined in a somewhat narrow sense as “the interpretation of isotopic dates in the light of complementary elemental or isotopic information from the same mineral(s)” (Kylander-Clark et al. 2013).
Michael L Williams +2 more
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Reviews in Mineralogy and Geochemistry, 2017 Titanite (CaTiSiO5) is a common mineral in calc-silicates, metamorphosed igneous rocks, and calc-alkaline plutons. The mineral was first named by Martin Klaproth in 1795 for its high content of the element titanium, which had been discovered only a few years prior, and named by Klaproth for the Titans of Greek mythology.
Matthew J. Kohn, Kohn, Matthew J.
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Petrochronology Based on REE-Minerals: Monazite, Allanite, Xenotime, Apatite
Reviews in Mineralogy and Geochemistry, 2017 ### REE-minerals Monazite, xenotime, and allanite are REE1-minerals sensu stricto because lanthanides (La…Lu) and yttrium are critical constituents in them. Apatite does not require REE, but because it contains substantial REE in many rocks, it is included in this review.
Martin Engi, Engi, Martin
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ADVANCES IN RUTILE PETROCHRONOLOGY
Geological Society of America Abstracts with Programs, 2020 Ellen Kooijman +2 more
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