Radiocarbon refers to radioactive carbon especially carbon-14, but also carbon-10 and carbon-12. Carbon-14 is a heavy radioactive isotope of Carbon having a mass of 14 and a half-life of 5730 +/-40 years. Carbon-14 is useful in dating organic materials during the last 50,000 years.
The oxygen isotope and stable carbon isotope data measured by using planktonic foraminifera, N. pachyderma picked from PC-04-AW collected in the southwestern Okhotsk Sea during MR06-04 leg.1 cruise.
