New isotope analysis facilities are amongst the capabilities of a new geologic clean laboratory at James Cook University.

This particle-controlled environment is used for preparation of geologic samples for analysis on the Neptune multiple collector inductively coupled plasma mass spectrometer (MC-ICP-MS) housed in the JCU advanced analytical center. The ability to chemically separate and concentrate elements of interest allows for determination of precise and/or low abundance isotopic ratios in a wide variety of samples.

Dr. Christa Placzek preparing samples for analysis of U isotopes in the new clean lab at JCU

In addition to a clean room environment, the lab features several specialized fume hoods that allow for complete digestion of silicate rocks. This lab is currently supporting projects spanning the geologic sciences, marine sciences, environmental science and archaeology and has already processed samples from six continents.

The lab is capable of high-precision determination of U-Th ages, as well as ratios of 87Sr/86Sr, 234U/238U, and 235U/238U.

For further information contact: Dr. Christa Placzek

From the August 2014 Economic Geology Research Unit (EGRU) newsletter, James Cook University, Townsville