Radio Carbon Dating
This 24,700 year-old leaf dated by radiocarbon was found in sediment cores from Japan’s Lake Suigetsu. (Credit: Richard Staff)
This 24,700 year-old leaf dated by radiocarbon was found in sediment cores from Japan’s Lake Suigetsu. (Credit: Richard Staff)
This 33,800 year-old leaf dated by radiocarbon found in Lake Suigetsu sediment extends radiocarbon dating by thousands of years. (Credit: Richard Staff)
ຕຶກອາຄານໃນນະຄອນ ລັສເວກັສ
Scientists find perfectly preserved organic materials in sediment cores in Japan’s Lake Suigetsu. (Credit: Christopher Bronk Ramsey)
With sediment cores from Lake Suigetsu scientists can now date with great accuracy the entire radiocarbon lifespan. (Credit: Christopher Bronk Ramsey)
The Oxford Radiocarbon Accelerator can identify radiocarbon dates from much smaller samples than needed for standard radiocarbon dating. (Credit: Christopher Bronk Ramsey)
Plant samples are readied for radiocarbon dating. (Credit: Richard Staff)
Suigestu sediments in natural light. (Credit: Gordon Schlolaut)
Suigestu sediments in polarized light. (Credit: Gordon Schlolaut)
Varved or layers of sediments from Lake Suigetsu cores. (Credit: Gordon Schlolaut)
Cores are temporarily stored in the cold room of the local fishermen's union near Lake Suigetsu. (Credit: Takeshi Nakagawa)
Core photography and sub-sampling were performed in this open-air workshop. (Credit: Takeshi Nakagawa)