| 单词 | radiogenic |
| 释义 | BETA Examples ofradiogenicDictionary> Examples ofradiogenic radiogenicisn’t in the Cambridge Dictionary yet. You can help! Add a definition Chapter 3 is a short but elegant introduction to geochronology and the principle ofradiogenictracers, a topic returned to later in the book. From theCambridge English Corpus Stable andradiogenicisotopes are often used to refine conclusions based on elemental work, to provide age constraints and to elucidate petrogenetic processes. From theCambridge English Corpus All aspects are covered: mineralogy, major- and trace-element compositions, and isotope (radiogenicand stable) geochemistry. From theCambridge English Corpus Such thermal models are, however, highly time-dependent asradiogenicheat production and erosion are relatively slow processes. From theCambridge English Corpus Because of error magnification, owing to the very low proportions ofradiogenicargon, the ages of such young lavas are not well constrained. From theCambridge English Corpus A grand weighted mean of theseradiogenicratios is then computed. From theCambridge English Corpus Thus, considerable loss ofradiogenicargon, resulting in a younger apparent age, is clearly implicated in this case. From theCambridge English Corpus A third section gave aberrant ages that indicate the presence of inherited or excessradiogenicargon. From theCambridge English Corpus These alternatives may be distinguished byradiogenicisotope ratios. From theCambridge English Corpus The next two chapters deal with isotope geochemistry, first stable thenradiogenic. From theCambridge English Corpus An important assumption in these thermal models is the level of crustalradiogenicheat production. From theCambridge English Corpus Radiogenicisotope compositions are compatible with a common magmatic source for the two lithologies. From theCambridge English Corpus A isradiogenicheat production rate. From theCambridge English Corpus The lower crust was divided into two sub-layers of equal thickness having different values ofradiogenicheat production, to take into account differences between migmatitic paragneisses and granulites. From theCambridge English Corpus Radiogenicand tidal heating in the silicate core may drive metamorphic dehydration of salts in the upper few kilometers of suboceanic crust. From theCambridge English Corpus High sums/(n-2) on inverse-isochron regressions are due to the highlyradiogenicnature of gas released (poorly constrained upper intercept) and very low analytical uncertainty on each data point. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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