Earthquake dating: an application of carbon-14 atom counting.
Milligram-sized specimens of detrital charcoal from soil layers associated with prehistoric earthquakes on the Wasatch fault in Utah have been dated by direct atom counting of carbon-14 with a tandem Van de Graaff accelerator. The measured ratios of carbon-14 to carbon-12 correspond to ages of 7800, 8800, and 9000 years with uncertainties of +/- 600 years.
Tucker
A B
AB
Woefli
W
W
Bonani
G
G
Suter
M
M