The usefulness of triple isotope studies of natural systems is contingent on the existence of
resolvable differences in mass-dependent fractionation exponents θ [where θ= ln (17/16α)/ln …

Stable isotope analyses are a relative measurement. The precision is far higher than the
accuracy, so that subtle isotopic differences must be made relative to a reference. Modern …

High precision triple oxygen isotope measurements are becoming a more common analysis
in laboratories. There is a lack of calibrated standards to use for triple oxygen isotope …

The CM carbonaceous chondrites are key archives for understanding the earliest history of
the solar system. Their C-complex asteroid parent body (ies) underwent aqueous alteration …

Mesophyll conductance to CO2 from the intercellular air space to the CO2–H2O exchange
site has been estimated using δ18O measurements (g m18). However, the g m18 estimates …

The field of stable isotope geochemistry began with the recognition that the oxygen isotope
composition of ancient carbonates could be used as a paleothermometer (Urey 1947; Urey …

The triple oxygen isotope signature Δ17O in atmospheric CO2, also known as its “17O
excess,” has been proposed as a tracer for gross primary production (the gross uptake of …

Rationale The simultaneous analysis of the three stable isotopes of oxygen—triple oxygen
isotope analysis—has become an important analytical technique in natural sciences …

Δ (17 O) measurements of atmospheric CO 2 have the potential to be a tracer for gross
primary production and stratosphere–troposphere mixing. A positive Δ (17 O) originates from …

Using laser absorption spectrometry for the measurement of stable isotopes of atmospheric
CO 2 instead of the traditional isotope ratio mass spectrometry method decreases sample …