Water in equilibrium with igneous melts should bear the same isotopic signature for oxygen-18 and deuterium.

In 2011, the most precise measurement yet of the isotopic signatures of lunar rocks was published.

Isotope hydrology is the study of the isotopic signatures of water.

Hence the isotopic signature of an event where more than one radioisotope is involved will change with time.

Since there may be no significant difference between mean tooth sizes or isotopic signatures in Pp.

The diet of the victims would also affect their isotopic signature.

Samples from early in this eruption have the isotopic signature of previous large eruptions.

Different foods produce different isotopic signatures in the tissues.

Their age and origin can be determined by their isotopic signature.

The methane's isotopic signature identified it as thermogenic methane like that in the gas wells.