最終更新日:2022/12/24
B.J. Szabo presented the results of a survey of the tufa mounds that border Pyramid Lake indicating that uranium-series methods can be used to approximate the ages of such tufa deposits. In the Pyramid Lake Basin, tufas less than 50,000 years old contain large quantities of excess thorium, and the error in age estimates made using uranium-series methods is not small enough to confirm results from ¹⁴C determinations.
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B.J.
Szabo
presented
the
results
of
a
survey
of
the
tufa
mounds
that
border
Pyramid
Lake
indicating
that
uranium-series
methods
can
be
used
to
approximate
the
ages
of
such
tufa
deposits.
In
the
Pyramid
Lake
Basin,
tufas
less
than
50,000
years
old
contain
large
quantities
of
excess
thorium,
and
the
error
in
age
estimates
made
using
uranium-series
methods
is
not
small
enough
to
confirm
results
from
¹⁴C
determinations.