Thermoluminescence dating method based on the fact that every material on earth receives a low level of radiation from the radioactive elements in the environment. Many solid materials store small fractions of this energy, which accumulates steadily over time. When the solid material is heated, the stored energy releases and emits light, a phenomenon called thermoluminescence. The age of the sample is assumed to be the length of time since the object was heated to a very high temperature. Thermoluminescence dating has obvious applications for dating volcanic rocks and other geological formations, but it can also be applied to humanly heated objects such as clay vessels, heat-treated stone artifacts, or fired bricks. Samples are taken by crumbling an object such as a potsherd or by drilling any holes in it for core samples. The laboratory সবধsures the natural thermoluminescence of the object রিঃh an alpha radiation counter.

MCQ: 168

Practice

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