Introduction

In our OSU Argon Geochronology Lab we employ the 40Ar/39Ar geochronology method to determine how hotspots evolve and interact with lithosphere, in quantifying rates at which large igneous provinces are constructed, in deciphering the early history of the Earth and Moon, in tracking transport pathways of terrigenous sediments from rivers to deep-sea sediments, and more.

read more

Instruments

Our laboratory is equiped with two noble gas mass spectrometers for carrying out 40Ar/39Ar age determinations. We have an Mass Analyser Products MAP 215-50 single-collector mass spectrometer and also a brand-new Thermo Scientific ARGUS VI multi-collector (installed March 2012) with five fixed Faraday detectors and one ion-counting CuBe electron multiplier.

read more

Publications

Since 1977 investigators, students and post-docs in our laboratory have produced 40Ar/39Ar age data that appeared in more than 195 peer-reviewed publications and in 31 Senior, MSc and PhD theses. This long list of papers could not have been possible without the more than 100 visitors over the last decades and our numerous national and international collaborators.

read more

"Employing the 40Ar/39Ar dating method focusing on volcanism in both the marine and terrestrial environment, with an emphasis on improving the geochronology of the ocean crust, ocean island volcanism, large igneous provinces, lunar and planetary rocks, hydrothermal minerals and clays, and so on"