The University of Utah’s Department of Geology & Geophysics has been awarded a million-dollar grant from the National Science Foundation (NSF) to acquire state-of-the-art mass spectrometry instrumentation for measuring isotope ratios of heavier elements at the precision needed to perform cutting-edge research into Earth’s deep past.

Mass spectrometers have been making accurate and precise isotope ratio measurements of elements such as hydrogen (H), carbon (C) and oxygen (O) for many decades. Isotope ratio differences generally scale with mass, with isotope ratios of these lighter-mass elements exhibiting much larger differences than ratios for the heavier-mass elements. Large differences are easier to measure than small differences.

The instrument acquired through the NSF Major Research Instrumentation program is capable of determining very, very small isotope ratio differences. The instrument’s technical name is the Thermo Neoma “multicollector inductively coupled plasma mass spectrometer,” or MC-ICP-MS for short. The instrument routinely makes accurate and precise isotope ratio measurements for magnesium (Mg), iron (Fe), strontium (Sr), molybdenum (Mo), mercury (Hg), thallium (Tl), lead (Pb), uranium (U), calcium (Ca), potassium (K) and many other heavy elements.

“There’s so many things you can do with it. We have a long list of scientists in our department and beyond who rely on isotope ratio data for their projects,” said Chad Ostrander, assistant professor of geology and principal investigator of the grant.

Joining Ostrander in applying for the grant are Diego Fernandez, Juan Carlos de Obeso and Sarah Lambart. Chris Anderson and Issaku Kohl also play instrumental roles in the project. The team’s interests cover many fields of research, tracking the selective movement of isotopes today and in the past from Earth’s interior to its surface, between seawater and the seafloor, from ocean to land and between land and life.

Read the entire story by Ethan Hood in @TheU.