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Additional details for this facility are available through the lab web page. Routine analytical procedures in the ANIMAL facility are fully automated and monitored through computer control. ANIMAL facilities are within ~750 ft 2 of dedicated lab space in the Department of Geosciences of Auburn University, with provision for temperature control and uninterruptible electrical service. The lab specializes in 40Ar/ 39Ar age measurements for very small sample quantities (typically single crystals), with procedures that enable efficient collection of large data sets. The ANIMAL laboratory provides researchers with access to noble gas mass spectrometry facilities of high quality and a wide range of capability. Trace elements are separated and purified by column chromatography in a trace metal cleanroom laboratory.Р”Р„uburn Noble Isotope Mass Analysis Laboratory (ANIMAL) These trace metal isotopes serve as geological clocks and tracers. We use TIMS to measure Nd, Sr, Pb, U, Th and other isotopes in rocks, minerals, and other materials. TIMS routinely achieves analytical precisions to the sixth decimal place for some elements (e.g., 87Sr/86Sr and 143Nd/144Nd).

TIMS machines provide highly accurate and precise isotope data, because (1) ions produced by TIMS have small variations in energy and (2) the formation of interfering molecular ions is minimum. The trace metal radiogenic isotope laboratory at Auburn University includes two thermal ionization mass spectrometers (TIMS, Finnigan MAT 262 and MAT 261) and a trace metal clean laboratory. Trace Metal Radiogenic Isotope Laboratory We offer a wide range of in situ analytical applications, and we have a strong commitment to provide precise and accurate results. The in situ analytical volume is typically a few cubic microns, and can be as small as a cubic micron for dense material. This electron microprobe can achieve a high spatial resolution (0.7-1.0 Р’Вµm beam size) and relatively low detection limit, as low as 50-100 ppm for some elements. The Auburn University Electron Microprobe Analysis Lab (AU-EMPA) hosts a JEOL JXA-8600 electron microprobe equipped with a tungsten electron gun, 4 wavelength-dispersive spectrometers for quantitative analysis, Si-Li energy-dispersive spectrometer detector for qualitative analysis, and BSE and SE detectors for imaging. The Auburn University Electron Microprobe Analysis Lab (AU-EMPA)

We use stable isotope ratios generated from speleothems,Р’В cave drip water, andР’В rain water, obtained from caves in RР“Вo Secreto (Mexico), Belize, Cuba, and Alabama to determine fluctuations in precipitation and vegetation from the Pleistocene to the present.Р’В In addition, the water samples are being used to evaluate the influence of the hydrological cycle on karst speleogenesis.

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The Paleoclimate and Stable Isotopes LaboratoryР’В houses aР’В Thermo Scientific Delta V Plus gas isotope ratio mass spectrometer (GIRMS) with a Gas Bench IIР’В and aР’В PICARRO L213-I high precision stable isotope water analyzer.

Paleoclimatology and Stable Isotopes Laboratory The AU Contaminants labs house analytical instruments to characterize and quantify organic matter in water systems and necessary preparatory equipment for extracting and analyzing organic matter from rocks and sediment (freeze-drying, Soxhlet extraction, etc.) Our facilities include Agilent 8890 GC/ 5977 MSD + Autoinjector for separation and quantification of small organic molecules, a Lumin Purge and trap for ppb/ppt analysis or organics in an environmental matrix, an Agilent Cary 3500 Uv-Vis, and an Agilent 1260 Infinity Quaternary Pump HPLC with UV and fluorescence detectors + autosampler. The major in-house facilities include the following. The Department of Geosciences has a broad range of laboratory, field, and computational facilities available for faculty and students research. Department of Geosciences Research Instrumentation and Facilities