| 31. | The primary risk from exposure to high levels of 131 I is the chance occurrence of radiogenic thyroid cancer in later life.
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| 32. | The primary risk from exposure to high levels of iodine-131 is the chance occurrence of radiogenic thyroid cancer in later life.
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| 33. | Radiogenic 107 Ag is a decay product of 107 Pd and was first discovered in 1978 in the Santa Clara meteorite of 1976.
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| 34. | The evolution of Earth's radiogenic heat flow over time : contribution from 235 U in red and from 238 U in green
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| 35. | Other important examples of radiogenic elements are radon and helium, both of which form during the decay of heavier elements in bedrock.
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| 36. | The non-radiogenic Pb content in many laboratory tests were found to be very low, nearly always lower than 1 ppm.
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| 37. | This, thus, allows a different rate of radiogenic Sr to evolve in the separate rocks and their component minerals as time progresses.
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| 38. | The greater the initial concentration of the parent, the greater the concentration of the radiogenic daughter isotope will be at some particular time.
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| 39. | Radiogenic isotope tracers are most powerful when used together with other tracers : The more tracers used, the more control on mixing processes.
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| 40. | Many radiogenic isotope measurements are made by ionization of a solid source, whereas stable isotope measurements of light elements ( e . g.
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