radiogenic การใช้

• Either radiogenic heating might have provided the necessary energy source.
• The helium isotopic pattern was consistent with a radiogenic, crustal origin.
• They are the primary source of radiogenic heat and radioactive decay products.
• Their decay products ('daughter'products ) are called radiogenic nuclides.
• Radiogenic 107 Ag was first discovered in the Santa Clara meteorite in 1978.
• Radiogenic isotopes provide powerful tracers for studying the ages and origins of Earth systems.
• Lead-204 is entirely a primordial nuclide and is not a radiogenic nuclide.
• The lower ratio was principally imparted by the low-radiogenic Pb upper crust.
• Stable isotope tracers involve only non-radiogenic isotopes and usually are mass-dependent.
• Isotopic tracers are usually subdivided into two categories : stable isotope tracers and radiogenic isotope tracers.
• Radon is entirely radiogenic, since it has too short a half-life to occur primordially.
• As noted in the case of lead-204, a radiogenic nuclide is often not radioactive.
• Jupiter's moon, subsurface water oceans where radiogenic and tidal heating enables liquid water to exist.
• 53 Cr is the radiogenic decay product of 53 nucleosynthetic processes immediately before coalescence of the solar system.
• The U / Pb ratio was so low that no radiogenic decay was detected in the isotopic composition.
• It was found that 232 Th and 282 U together generate 20.0 TW of radiogenic power.
• Helium-4 is created by radiogenic production ( by decay of uranium / thorium-series elements ).
• This, in turn, influences the 143 Nd / 144 Nd ratios with ingrowth of radiogenic 143 Nd.
• The evolution of Earth's mantle radiogenic heat flow over time : contribution from 40 K in yellow.
• It also suggests that this temperature means that the concentration of radiogenic isotopes is greater than within the earth.