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Collaboration is possible for external projects, and also for cosmogenic isotope analysis and exposure dating on a quasi-commercial or commercial basis.

Cl are now used extensively for determining the exposure history of bedrock surfaces, glacially transported boulders, sedimentary deposits, fans, buried cave sands, dune and river sands and fault scarps to determine glacial chronologies, basin wide erosion rates, burial ages, fault and slip rates, landscape change in paleo-geomorphology and climate change.

We use this information to measure rates of erosion, weathering and sedimentation in landscapes.

These measurements are important for solving a range of discipline-spanning problems in geomorphology, low-temperature geochemistry, soil science and geobiology.

The cosmogenic nuclides measured by AMS at PRIME Lab are radioactive isotopes of the elements beryllium, carbon, aluminum, chlorine, calcium, and iodine.

The laboratory is equipped with a scrubbed fume hood, a standard fume hood, a multi-sample heated ultrasonic bath, and heavy-media separation equipment.

We have an array of equipment and facilities for cosmogenic nuclide sample preparation at the University of Wyoming.

The first step in the process is to isolate quartz from everything else in our samples of crushed rock, sediment and soils.

Please discuss your proposal with the appropriate ANSTO Contact Scientist before submitting your proposal as they will assist you in making the correct capability selection.

Pb against depth or cumulative weight (to allow for compacting) will be a straight line if the sedimentation rate has been constant.

Radioactive nuclides reach their secular equilibrium after 3-4 half-lives, which defines the applicability range of the method.

See more about the method in: Gosse and Phillips (2001); Dunai (2010); Granger et al. Exposure age determination Exposure age of a rock is the time elapsed since it has been exposed to cosmic irradiation.

Quartz is a target mineral for production of Be-10, which at the moment is the most widely used nuclide both in our studies and in the literature as well.

Because Be-10 is produced slowly (at just 22 per gram per year in the Laramie area) we need large amounts of quartz so that there are enough atoms to measure.

The laboratory doubles as a dark room for the preparation of silver salts.

The laboratory has a scrubbed fume hood for the use of hydrofluoric acid in rock digestion.