Lecture 18- GEL 1 Lecture 18 Absolute/Numerical Age Dating. Lyell's extreme form of uniformitarianism would have required a perfect balance between heat production and heat loss. GEL 1 Lecture 18 Absolute/Numerical Age Dating - placing dates on the relative time scale How do we calculate absolute age of a rock?
Numerical age computation of the antarctic ice sheet for dating deep. Kelvin argued that this was physiy impossible (the concept is akin to a perpetual motion machine). Abstract. The application of two different methods for the computation of the age of ice is discussed within the frame of numerical ice sheet.
Numerical age and geologic time ~ Learning Geology Kelvin knew that the Earth gets hotter with increasing depth (the geothermal gradient), and took this observation as evidence that the Earth is cooling off. Chamberlain challenged Kelvins assumption that the earth started as a molten body. By isotopiy dating the neous rocks, they have been able to provide numerical ages for the boundaries between all geologic periods.