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isochron

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isochron
isochron, a. and n. (ˈaɪsəʊkrɒn) Also isochrone (-krəʊn), 8 erron. -crone. [f. Gr. ἰσόχρον-ος (see isochronal a.).] A. adj. (In form isochrone) = isochronous a. 11697 Evelyn Numism. viii. 281 The Equated Isocrone Motion. 1762 tr. Busching's Syst. Geog. I. Pref. 35 The degrees of the meridian, and th... Oxford English Dictionary
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Isochron
In the mathematical theory of dynamical systems, an isochron is a set of initial conditions for the system that all lead to the same long-term behaviour Find which isochron the initial values lie on: that isochron is characterised by some ; the initial condition that gives the correct forecast from the wikipedia.org
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ISOCHRON (spacecraft)
ISOCHRON (Inner SOlar system CHRONogy) is a proposed lunar sample-return mission that would retrieve samples of the youngest lunar mare basalt. Overview ISOCHRON would address fundamental questions about the composition of the lunar crust and the time-stratigraphy of lunar volcanic processes, wikipedia.org
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isochronal
isochronal, a. (aɪˈsɒkrənəl) Also 8 erron. -cronal. [f. mod.L. isochron-us (Leibnitz), a. Gr. ἰσόχρον-ος equal in time (f. ἰσο-, iso- + χρόνος time) + -al1. Cf. F. isochrone (1703 in Hatz.–Darm.).] 1. = isochronous a. 1. † isochronal line [tr. L. linea isochrona (Leibnitz, 1689)], a curve in which a... Oxford English Dictionary
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Isochron dating
Isochron dating can be further separated into mineral isochron dating and whole rock isochron dating; both techniques are applied frequently to date terrestrial The change in slope from initial conditions—assuming an initial isochron slope of zero (a horizontal isochron) at the point of intersection (intercept) wikipedia.org
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isochronous
isochronous, a. (aɪˈsɒkrənəs) [f. as isochron-al + -ous.] 1. a. Taking place in or occupying equal times; equal in metrical length; equal in duration, or in intervals of occurrence, as the vibrations of a pendulum; characterized by or relating to vibrations or motions of equal duration; vibrating un... Oxford English Dictionary
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isochronic
isochronic, a. (aɪsəʊˈkrɒnɪk) [f. as isochron-al + -ic.] 1. Also isoˈchronical. = isochronous a. 1.1779 Mann in Phil. Trans. LXIX. 583 This curve is what is called the Horizontal Isochronic. 1794 G. Adams Nat. & Exp. Philos. I. iii. 65 The isochronical vibrations of the pendulum. 1827 Westm. Rev. VI... Oxford English Dictionary
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Samarium-147
The method of isochron dating is used to find the date at which a rock (or group of rocks) are formed. of the isochron which defines the age of the system. wikipedia.org
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Rhenium–osmium dating
Rhenium–osmium isochron Rhenium–osmium dating is carried out by the isochron dating method. of the isochron which defines the age of the system. wikipedia.org
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Could meteors have been been formed with lead, and mislead radiometric dating? The age of the Earth has been determined by radiometric dating of meteorites, by seeing how much uranium has decayed into lead. How do we...
Isochron dating avoids contamination problems. Meteorites are often dated by iscohron lead-lead methods, and hence are not affected by contamination.
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Samarium–neodymium dating
To find the date at which a rock (or group of rocks) formed one can use the method of isochron dating. of the isochron which defines the age of the system. wikipedia.org
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Isotopic age spectrum of the Huangling granitic batholith,western Hubei ...
The Rb Sr isochron ages and zircon U Pb concordant ages for main rock suites of the Huangling granitic batholith have been recalculated with the Isoplot program (Ludwig,1994),and the intrusive ages have been measured of variant kinds of dikes in the batholith. A age spectrum of magmatic activity have been obtained: the emplacement ages of the Taipingxi tonalite,Huanglingmiao granodiorite and ...
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(PDF) MSWD and n Value in Laser Ablation 40Ar/39Ar ... - ResearchGate
The mean square weighted deviation (MSWD) and the number of measurement (n value) are used to be the crucial parameter to evaluate sample properties and experimental standard. When applying laser ...
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Lutetium–hafnium dating
A common practice for geochronological dating is to establish an isochron plot. The slope of the plotted isochron would represent . wikipedia.org
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Lead–lead dating
As illustrated in figure 1, this point defines the lower (left) end of the isochron. Lead isotope isochron diagram used by C. C. Patterson to determine the age of the Earth in 1956. wikipedia.org
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