Dating of rocks fossils and geologic events laboratory 8
Through a series of changes within the nucleus, it emits several particles, ending up with 82 protons and neutrons.This is a stable condition, and there are no more changes in the atomic nucleus.Unformatted text preview: LABORATORY EIGHT Dating of Rocks, Fossils, and Geologic Events o CONTRIBUTING AUTHORS- Jonathan Bushee - Northern Kentucky University John K. MATERIALS Pencil, eraser, laboratory notebook, calculator, and colored pencils (optional) plus a ruler and protractor from Geo Tools Sheet 1 at the back of the manual. Learn and be able to apply techniques for rela- tive age dating of Earth materials and events. Use fossils to date some rock bodies and infer some of Earth’s history. Learn and be able to apply techniques for ab- solute age dating of Earth materials and events. Be able to apply relative and absolute dating techniques to analyze two field sites and infer their geologic history. Be able to apply relative dating techniques to ana- lyze logs of five wells and correlate among them.
After the graphs are plotted, the teacher should guide the class into thinking about: Is it the single group's results, or is it the line based on the class average?
This happens at any time when addition of the fleeting "weak nuclear force" to the ever-present electrostatic repulsion exceeds the binding energy required to hold the nucleus together.
In other words, during million years, half the U atoms that existed at the beginning of that time will decay to Pb This is known as the half life of U- Many elements have some isotopes that are unstable, essentially because they have too many neutrons to be balanced by the number of protons in the nucleus.
Then, count the number of pieces of candy left with the M facing down.
These are the parent isotope that did not change during the first half life.