Radiometric dating techniques are touted as the final proof that the earth is billions of years old. However, a closer look reveals that radiometric dating is driven by subjective presumptions made by the researcher. These presumptions allow the study to conclude any date expected or desired simply by the adjustment of variables or presumptions. These subjective presumptions combined with unknown variables combine to be fatal to any radiometric dating conclusions. Centuries before radiometric dating was conceived and throughout much of recorded human history, scientists widely concurred that The Creation of the earth and the universe were quite recent.
What is the most commonly used isotope in the radiometric dating of previously living organisms
Radiometric dating - Wikipedia
Carbon dating , also called radiocarbon dating , method of age determination that depends upon the decay to nitrogen of radiocarbon carbon Radiocarbon present in molecules of atmospheric carbon dioxide enters the biological carbon cycle : it is absorbed from the air by green plants and then passed on to animals through the food chain. Radiocarbon decays slowly in a living organism, and the amount lost is continually replenished as long as the organism takes in air or food. Once the organism dies, however, it ceases to absorb carbon, so that the amount of the radiocarbon in its tissues steadily decreases.
Radiocarbon dating is a key tool archaeologists use to determine the age of plants and objects made with organic material. But new research shows that commonly accepted radiocarbon dating standards can miss the mark -- calling into question historical timelines. Archaeologist Sturt Manning and colleagues have revealed variations in the radiocarbon cycle at certain periods of time, affecting frequently cited standards used in archaeological and historical research relevant to the southern Levant region, which includes Israel, southern Jordan and Egypt. These variations, or offsets, of up to 20 years in the calibration of precise radiocarbon dating could be related to climatic conditions.