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2. Radiometric dating - Wikipedia

   en.wikipedia.org/wiki/Radiometric_dating

   Luminescence dating methods are not radiometric dating methods in that they do not rely on abundances of isotopes to calculate age. Instead, they are a consequence of background radiation on certain minerals. Over time, ionizing radiation is absorbed by mineral grains in sediments and archaeological materials such as quartz and potassium ...

3. Rubidium–strontium dating - Wikipedia

   en.wikipedia.org/wiki/Rubidium–strontium_dating

   The rubidium–strontium dating method (Rb–Sr) is a radiometric dating technique, used by scientists to determine the age of rocks and minerals from their content of specific isotopes of rubidium (87 Rb) and strontium (87 Sr, 86 Sr). One of the two naturally occurring isotopes of rubidium, 87 Rb, decays to 87 Sr with a half-life of 49.23 ...

4. Isochron dating - Wikipedia

   en.wikipedia.org/wiki/Isochron_dating

   An isochron diagram will only give a valid age if all samples are cogenetic, which means they have the same initial isotopic composition (that is, the rocks are from the same unit, the minerals are from the same rock, etc.), all samples have the same initial isotopic composition (at t 0), and the system has remained closed.

5. Category:Radiometric dating - Wikipedia

   en.wikipedia.org/wiki/Category:Radiometric_dating

   Radionuclides used in radiometric dating (16 P) Pages in category "Radiometric dating" The following 30 pages are in this category, out of 30 total.

6. Uranium–thorium dating - Wikipedia

   en.wikipedia.org/wiki/Uranium–thorium_dating

   Uranium–thorium dating, also called thorium-230 dating, uranium-series disequilibrium dating or uranium-series dating, is a radiometric dating technique established in the 1960s which has been used since the 1970s to determine the age of calcium carbonate materials such as speleothem or coral.

7. Radioanalytical chemistry - Wikipedia

   en.wikipedia.org/wiki/Radioanalytical_chemistry

   Radiocarbon dating of organic matter, water Iron: 55: 2.7: Produced in iron and steel casings, vessels, or supports for nuclear weapons and reactors Strontium: 90: 28.8: Common fission product Technetium: 99: 214,000: Common fission product Iodine: 129: 15.7 million: Groundwater tracer Cesium: 137: 30.2: Nuclear weapons and nuclear reactors ...

8. NYT ‘Connections’ Hints and Answers Today, Friday ... - AOL

   www.aol.com/nyt-connections-hints-answers-today...

   Get ready for all of today's NYT 'Connections’ hints and answers for #551 on Friday, December 13, 2024. Today's NYT Connections puzzle for Friday, December 13, 2024The New York Times.

9. Thermochronology - Wikipedia

   en.wikipedia.org/wiki/Thermochronology

   Thermochronologists use radiometric dating along with the closure temperatures that represent the temperature of the mineral being studied at the time given by the date recorded to understand the thermal history of a specific rock, mineral, or geologic unit.