Electron Microprobe Laboratory:
The electron microprobe laboratory is located in B10 in the Earth Sciences Building. It has a state-of-the-art JEOL 8900 microprobe equipped with five wavelength dispersive spectrometers, an energy dispersive spectrometer and cathode luminescence detector. “Cold finger” trap may be employed to reduce amount of hydrocarbons in the chamber enhancing analysis of light elements (carbon and nitrogen).
This instrument provides quantitative chemical analyses (detection limit is commonly at the level of a few hundreds ppm); secondary- and back-scattered electron images; CL images; and elemental distribution maps for use in the geological, metallurgical, ceramic, anthropological, and forensic sciences. Analyses and imaging can be done on samples as small as a few microns across. This instrument is widely used by researchers and students at the University of Alberta and other Canadian universities, and also by industrial clients.
A new Cameca SX-100 microprobe is currently being installed.
A new Canadian facility for high resolution multi-collector SIMS (ion microprobe) is currently under construction (operational early 2009). As a centre piece it will house a Cameca IMS1280. The new facility will allow in situ isotopic analyses (stable and radiogenic isotopes) of Earth and planetary materials.
Faculty Services Officer
Tel: (780) 492-0347
Fax: (780) 492-2030
Radiogenic Isotope Facility:
The Radiogenic Isotope Facility (RIF) in the Department of Earth & Atmospheric Sciences, University of Alberta features several Class 100 cleanroom (including Class 10 workstations) laboratories used for the chemical separation of various elements prior to mass spectrometer analysis. The mass spectrometer laboratory houses two thermal ionization (solid source) instruments – a Vacuum Generators VG354 and a Micromass Sector54. The facility has recently installed a NuPlasma Multi-Collector ICP Mass Spectrometer equipped with a New Wave Research UP-213 laser ablation system. The RIF offers analyses in a wide range of isotope systems, including U-Pb geochronology on minerals such as zircon, titanite, monazite and baddeleyite, as well as Cd, Rb-Sr, Sm-Nd, Lu-Hf, Pb-Pb, and Re-Os analyses of rocks, minerals, ores and other samples. In addition, current research projects involving in-situ analyses using the laser ablation-MC-ICP-MS configuration include: Hf isotopic characterization and U-Pb dating of detrital zircon populations, Sr isotopic investigations of fossilized teeth and mantle (e.g. clinopyroxene) and magmatic minerals (e.g. perovskite), and common Pb studies of various low abundance Pb (< 1 ppm) minerals. Usage of the RIF includes local, national, and international scientific collaborators, government agencies, and commercial users.
Dr. Robert A. Creaser
Tel: (780) 492-2942
The Scanning Electron Microscope Lab is located in Room 2-17C in the Earth Sciences Building. A JEOL 6301F (Field Emission Scanning Electron Microscope) provides high-resolution digital images of surface textures and microstructures, at magnifications ranging from 20x to 250,000x. Semi-qualitative elemental analysis is available via a PGT X-ray analysis system. Frozen samples can be examined using the Emitek K1250 cryogenic system. For sample preparation, the facility has a Bal-Tec CPD 030 critical point drier and with either a Xenosput XE200 or a Nanotek SEMprep 2 can provide conductive coatings of gold, chrome, silver, iridium and copper.
X-Ray Diffraction Laboratory
The X-Ray Diffraction Laborary is located in the Earth Sciences Building. The main use of this lab is for mineral identification. It houses a Rigaku Geigerflex Power Diffractometer with a Co tube and a graphite monochromator. The system has an online computer capable of analog and digital data processing, and routine search/match procedures of diffraction patterns using the JCPDS database.
Tel: (780) 492-1122