To better interpret the isotopic composition of ancient aragonitic fossils, stable-isotopic
analyses have been performed on live and modern specimens of aragonitic foraminifera, …

An open-system chemostat technique was employed to study temperature and precipitation
rate effects on carbon isotopic fractionation during the inorganic precipitation of aragonite …

The formation of the Isthmus of Panama stands as one of the greatest natural events of the
Cenozoic, driving profound biotic transformations on land and in the oceans. Some recent …

Because meteoric water δ 18 O values decrease with decreasing ambient temperature and
increasing latitude, δ 18 O values of meteoric calcite cement should exhibit a similar relation …

We present detailed isotope stratigraphies for Carboniferous time based on brachiopod
shell calcite from the midcontinent region of North America. Evidence for shell calcite …

We present an empirical calibration of the carbonate clumped isotope thermometer based
on mollusk and brachiopod shells from natural and controlled environments spanning water …

Solid-state reordering of C–O bonds in the calcite lattice can alter the clumped isotope
composition of paleotemperature archives such as fossil brachiopod shells without inducing …

To evaluate the isotopic record of climate change and carbon sequestration in the Late
Paleozoic, we have compiled new and published oxygen and carbon isotopic measurements of …

In light of recent studies that show oxygen isotope fractionation in carbonate minerals to be
a function of HCO 3 − and CO 3 2− concentrations, the oxygen isotope fractionation and …

The oxygen isotope compositions of carbonate and phosphatic fossils hold the key to
understanding Earth-system evolution during the last 500 million years. Unfortunately, the validity …