|
Answer» Galagos
Loris
Lemur
Bush Baby. Solution :Geological Dating/RADIOMETRIC Dating. It is a method of determining the age of geological structures like rocks and fossils. The most common method is measuring the rate of decay of radioactive elements and is, therefore, called radiometric dating. The elements chosen for radiomatric dating. TheCarbon-14 (1000 - 50,000 yrs), Potassium-40 (more than 100,000 YEARS),Thorium-232 and Uranium-238 (more than 30 million years). Radio-carbon dating was perfected by Libby (1949). The ratio of `C-14` and `C-12` is calculated in a material under INVESTIGATION and compared with their ratio in atmosphere with minor corrections. Aceelerator Mass Spectrometry (AMS) requires only a small SAMPLE and measure `C-14` diectly.
|
