Radiocarbon dating - Wikipedia
网页Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon.
Radiocarbon | Cambridge Core
网页Radiocarbon is the international journal of record for technical and interpretive articles and date lists relevant to 14 C and other radioisotopes and techniques used in archaeological, geophysical, oceanographic, and related dating.
Carbon-14 - Wikipedia
网页Carbon-14. C or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons. Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples.
Explainer: what is radiocarbon dating and how does it work?
网页2012年11月28日 · Radiocarbon dating works by comparing the three different isotopes of carbon. Isotopes of a particular element have the same number of protons in their nucleus, but different numbers of neutrons....
Radiocarbon
网页Radiocarbon dating lab Beta Analytic provides high-quality AMS dating results in 3-14 business days. The laboratory also provides stable isotope analysis.
Radiocarbon Dating - American Chemical Society
网页2016年10月10日 · In 1946, Willard Libby proposed an innovative method for dating organic materials by measuring their content of carbon-14, a newly discovered radioactive isotope of carbon. Known as radiocarbon dating, this method provides objective age estimates for carbon-based objects that originated from living organisms.
Radiocarbon dating - Nature Reviews Methods Primers
网页2021年9月9日 · Radiocarbon (14 C) is a radioactive isotope of carbon produced naturally in the atmosphere by secondary cosmic rays. The discovery of 14 C and the establishment of the current method for...
Radiocarbon revolution: the story of an isotope - Nature
网页2019年6月17日 · Radiocarbon is scarce in nature, formed in the upper atmosphere through the interaction of cosmic rays with nitrogen. It is rapidly converted to carbon dioxide, and filters into a host of carbon...
Radiocarbon dating: going back in time - Nature
网页2022年7月19日 · The fraction of radioactive carbon-14 (denoted as 14 C/C) in atmospheric carbon dioxide increased after nuclear-bomb testing produced excess 14 C in the 1950s and 1960s, but is now falling below ...
Radiocarbon: A key tracer for studying Earth’s dynamo ... - Science
网页Carbon-14 or radiocarbon, a radioactive isotope produced in the upper atmosphere by cosmic rays, is rapidly incorporated into the terrestrial carbon cycle and provides a way to calculate the age of carbon-bearing materials as old as 55,000 years.
跳至内容