History
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 50 million yeas
ago.
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