Radiocarbon dating math
February 22, A two-meter-long painting of a kangaroo in Western Australia's Kimberley region has been identified as Australia's oldest intact rock painting. Using the radiocarbon dating of 27 mud wasp nests, collected from over and under 16 similar paintings, a University of Melbourne collaboration has put the painting at 17, and 17, years old. Damien Finch who pioneered the exciting new radiocarbon technique.
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What Does cal BP Mean?
What Does the Archaeological Dating "cal BP" mean?
In this section we will explore the use of carbon dating to determine the age of fossil remains. Carbon is a key element in biologically important molecules. During the lifetime of an organism, carbon is brought into the cell from the environment in the form of either carbon dioxide or carbon-based food molecules such as glucose; then used to build biologically important molecules such as sugars, proteins, fats, and nucleic acids. These molecules are subsequently incorporated into the cells and tissues that make up living things. Therefore, organisms from a single-celled bacteria to the largest of the dinosaurs leave behind carbon-based remains. Carbon dating is based upon the decay of 14 C, a radioactive isotope of carbon with a relatively long half-life years.
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The Carbon 14 Myth
A Global Boundary Stratotype Section and Point GSSP is an internationally agreed upon reference point on a stratigraphic section which defines the lower boundary of a stage on the geologic time scale. Most, but not all, GSSPs are based on paleontological changes. Hence GSSPs are usually described in terms of transitions between different faunal stages , though far more faunal stages have been described than GSSPs.
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