Presentation

Scientific director: Guillaume St-Onge
Lab manager: Jacques Labrie

Location :
GEOTOP-ISMER/UQAR
310 Allée des Ursulines
Rimouski, QC G5L 8X3 - Canada

Contact : jacques_labrie@uqar.ca
Ph. : 418-723-1986, ext. 1768

The research performed in the Sedimentary Paleomagnetism and Marine Geology Laboratory of ISMER mostly uses the various magnetic and physical properties of sedimentary sequences to reconstruct variations in Earth’s magnetic field, establish high-resolution chronostratigraphy, and develop natural hazards and paleoclimatic proxies for the Quaternary. Key instruments in the laboratory include a 2G-Enterprises u-channel cryogenic magnetometer, a GEOTEK MultiSensor Core Logger to determine the physical properties of sediment cores and a CAT-Scan.The u-channel cryogenic magnetometer allows the continuous and high-resolution measurement of the NRM (Natural Remanent Magnetization), ARM (Anhysteretic Remanent Magnetization), IRM (Isothermal Remanent Magnetization), and SIRM (Saturated Isothermal Remanent Magnetization) and magnetic susceptibility. The laboratory is also equipped with an alternating force gradient magnetometer to determine the magnetic mineralogy and granulometry, a XRF scanner to determine the chemical composition of the sediment cores, a spectrophotometer for quantifying the sediment color and a SmartCIS core scanner for continuous digital photography of core sections. The laboratory is also equipped to perform geophysical surveys (sparkers, boomer, subbottom profilers, side-scan and interferometric sonars, multibeam sonar) and diverse core sampling in marine and lacustrine environments. Finally, grain size and micro CAT-Scan analysis can also be performed in the particle analysis laboratory.

For more information, go to http://paleomag.uqar.ca/?lang=en