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Not used for dating rocks, except carbonates from Earth's surface such as recent coral reefs.
Used for young organic materials, or surface-water samples: Wood, charcoal, peat, bone, tissue, carbonate minerals from surficial environments, water containing dissolved carbon.
Runners have long debated the difference between training on a treadmill and training on solid ground.
I am left-handed, but like many of us in this back-to-front world, I can do most things fairly well right-handed.
While the handbook still gives examples of how to cite sources, it is organized according to the process of documentation, rather than by the sources themselves.
The following data was collected from a compilation of data from the CRC Handbook and other references.
The mathematical formula can be used to determine exactly how many half-lives have elapsed, for any fraction of parent/daughter isotope, without having to make a visual estimate from a graph.
In this next (and last) spreadsheet exercise, you will use the mathematical formula.