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radiogenic isotope |
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radiogenic isotope [¦rād·ē·ō¦jen·ik ′ī·sə‚tōp] (nuclear physics) An isotope which was produced by the decay of a radioisotope, but which itself may or may not be radioactive. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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There are chapters on biostratigraphy 3), orbital parameters and cycle stratigraphy 4), geomagnetic polarity 5), radiogenic isotopes 6), strontium isotopes 7), and geomathematics 8). Clearly, metasomatism coincident with magmatism is important, but it cannot yield the large variations in daughter radiogenic isotopes observed among islands because they require millions or billions of years to develop from parent isotopes having long half-lives. The chapter on "Provenance and crust-mantle evolution studies based on radiogenic isotopes in sedimentary rocks," by Jonathan Patchett concentrates on the use of Sm-Nd, Lu-Hf and Rb-Sr isotopic approaches to problems of sedimentary provenance, tectonic environments and crust-mantle evolution. |
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