GEO 303 Chapter Notes - Chapter 11: Sedimentary Rock, Erosion Surface, Radiogenic Nuclide
10 May 2016
School
Department
Course
Professor
Document Summary
The discovery of time: early speculations. The bible (what the fuck is this textbook: advent of the scientific method. History isn"t endless repetition, its an evolutionary development in which the achievements of each new era were based on upon those inherited from the previous era. Unconformity: the buried erosion surface that separates the older and younger series of beds, represents the period of time during which a part of previously deposited geologic record was destroyed. Uniformitarianism: emphasize the continued application of uniform processes: toward a geologic clock. Hour glasses: using radioactivity to tell time. Determined by competition between opposing factors, an immensely powerful nuclear force binds the protons and neutrons together, but the energy contained in the nucleus tends to disrupt it. Some of this internal energy is released through the processes of radioactive decay. Half-life reduces by half every half life (1, , 1/4, 1/8) Radioactive counter: device that measures decay events atom by atom: mass spectrometers.
