Is the Earth 4.5 Billion years old? Geologic Column & Radiometric dating

Article describing how the Jurassic era is dated with Radiometric dating techniques: https://www.britannica.com/science/Jurassic-Period/Occurrence-and-distribution-of-Jurassic-rocks

Article explaining how stratigraphy layers are dated with radiometric dating: https://evolution.berkeley.edu/radiometric-dating/