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radiogenic
radiogenic, a. (reɪdɪəʊˈdʒɛnɪk) [f. radio- 3, 4 + -genic (in sense 1 after photogenic).] 1. Well suited for broadcasting by radio; providing an attractive subject for a radio broadcast.1928 Radio Times 24 Aug. 342/2 Their object is to discover..a form (or forms) of drama which shall be truly ‘radiog...
Oxford English Dictionary
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Radiogenic nuclide
Radiogenic nuclides (more commonly referred to as radiogenic isotopes) form some of the most important tools in geology. In comparison with the quantity of a non-radiogenic isotope of the same element, the quantity of the radiogenic isotope is used to define its isotopic
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-genic
-genic, suffix (-ˈdʒɛnɪk) [f. -gen + -ic] forming adjectives with the meaning: ‘of, pertaining to, or relating to generation or production’; spec. (a) generating, producing, as carcinogenic, epeirogenic, pathogenic, pyrogenic; (b) generated, produced, originating in, as blastogenic, cryptogenic. b. ...
Oxford English Dictionary
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SedDB
contains the full range of analytical values for sediment samples, primarily from marine sediment cores, including major and trace element concentrations, radiogenic
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Geoneutrino
This analysis put a 60 TW upper limit on the Earth's radiogenic power from 232Th and 238U. It was found that 232Th and 238U together generate 20.0 TW of radiogenic power.
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Isochron dating
Basis for method
All forms of isochron dating assume that the source of the rock or rocks contained unknown amounts of both radiogenic and non-radiogenic Thus, at the moment of crystallization, the ratio of the concentration of the radiogenic isotope of the daughter element to that of the non-radiogenic
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Rhenium–osmium dating
The Re-Os isochron plots the ratio of radiogenic 187Os to non-radiogenic 188Os against the ratio of the parent isotope 187Re to the non-radiogenic isotope The stable and relatively abundant osmium isotope 188Os is used to normalize the radiogenic isotope in the isochron.
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Samarium-147
The Sm-Nd isochron plots the ratio of radiogenic 143Nd to non-radiogenic 144Nd against the ratio of the parent isotope 147Sm to the non-radiogenic isotope 144Nd. 144Nd is used to normalize the radiogenic isotope in the isochron because it is a slightly radioactive and relatively abundant neodymium isotope
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中村中
8月11日-8月13日、舞台剧「Radiogenic Leading・Spectacle 优雅的秘密」、13日在『Radiogenic Leading・Spectacle 优雅的秘密 特别公演苫小牧Special下町日和』中担任『ディーバ』一角,首次以舞台演员身份出道。 年8月11日-8月13日)
「Radiogenic Leading・Spectacle 优雅的秘密 特别公演苫小牧Special 下町日和」饰演ディーバ(2006年8月13日)
「Rock・Musical Hedwig and the Angry Inch」饰演イツァーク(2007年2月15日-3月4
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Potassium-40
Contribution to natural radioactivity
The radioactive decay of 40K in the Earth's mantle ranks third, after 232Th and 238U, as the source of radiogenic The core also likely contains radiogenic sources, although how much is uncertain.
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ميزانية الحرارة الداخلية للأرض
معظم تدفق الحرارة من أكثر سماكة القشرة القارية يعزى إلى الداخلية radiogenic مصادر في المقابل أرق القشرة المحيطية فقط 2% الداخلية radiogenic الحرارة. الأرض مصدر الحرارة الداخلية يجري radiogenic, وهذا يتفق مع التقديرات السابقة.
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有哪些推翻了人们对历史认知的考古发现?
Mention was once made of some Ancient Egyptian bronzes have highly radiogenic lead isotopes, but that report did not show supporting data9. In contrast, the original, highly radiogenic isotopic signature of Early Yin-Shang bronzes is well preserved in Yin-Shang tombs.
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El Rojo Sur
Its lead isotope composition is different from the composition of that segment of the Andes, being non-radiogenic.
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Isotope geochemistry
Radiogenic isotope geochemistry
Radiogenic isotopes provide powerful tracers for studying the ages and origins of Earth systems. The ratio of non-radiogenic osmium to radiogenic osmium throughout time varies.
Rhenium prefers to enter sulfides more readily than osmium.
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Richard Lee Armstrong
Richard Lee Armstrong (August 4, 1937 – August 9, 1991) was an American/Canadian scientist who was an expert in the fields of radiogenic isotope geochemistry Radiogenic isotopes; The case for crustal recycling on a near-steady-state no-continental-growth Earth: Royal Society of London Philosophical Transactions
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