The Nagoya University Center for Chronological Research was founded in 1990 as the `Nagoya University Dating and Material Research Center' and acquired its present name in April 2000.

About us

The Nagoya University Center for Chronological Research has an ongoing program to analyse the earth's varied 4,600 million year history, using such diverse materials as rocks, wood, pottery, and ancient documents.

In order to analyse a whole range of events in the 4,600 million-year history of the earth; the center is organized into two sections. The first is concerned with research applications of an instrument called a tandem accelerator mass spectrometer and is known as the `tandetron section.' The second section is concerned with the development of new dating methods.

Young archaeological and geological samples are dated by accelerator mass spectrometric 14C and 10Be dating and old geological samples by the CHIME (Chemical U-Th-total Pb Isochron method.)

AMS (Tandetron) group

The tandetron section of the center is the only laboratory in the world that has two accelerator mass spectrometers installed. With these tools we can study mankind's cultural history and changes in the earth's environment, up to a maxmum of about 60,000 years ago.

CHIME group

In the section concerned with new methods of daing, Nagoya University is leading the world with the development of a method known as CHIME, which can be used to investing the long time period between 4,600 million and 1 million years ago.

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