Journal article
Destructive and non-destructive density determination: Method comparison and evaluation from the Laguna Potrok Aike sedimentary record
D Fortin, P Francus, AC Gebhardt, A Hahn, P Kliem, A Lisé-Pronovost, R Roychowdhury, J Labrie, G St-Onge
Quaternary Science Reviews | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2013
Abstract
Density measurements play a central role in the characterization of sediment profiles. When working with long records (>100m), such as those routinely obtained within the frame of the International Continental Scientific Drilling Program, several methods can be used, all of them varying in resolution, time-cost efficiency and source of errors within the measurements. This paper compares two relatively new non-destructive densitometric methods, CT-Scanning and the coherent/incoherent ratio from an Itrax XRF core Scanner, to data acquired from a Multi-sensor core logger Gamma Ray Attenuation Porosity Evaluator (MSCL Grape) and discrete measurements of dry bulk density, wet bulk density and wat..
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Funding Acknowledgements
This research is supported by the International Continental Scientific Drilling Program (ICDP) in the framework of the "Potrok Aike Maar Lake Sediment Archive Drilling Project" (PASADO). Funding for drilling was provided by the ICDP, the German Science Foundation (DFG), the Swiss National Funds (SNF), the Natural Sciences and Engineering Research Council of Canada (NSERC), the Swedish Vetenskapsradet (VR) and the University of Bremen. For their invaluable help in field logistics and drilling we thank the staff of INTA Santa Cruz and Rio Dulce Catering as well as the Moreteau family and the DOSECC crew. David Fortin was financially supported by a postdoctoral fellowship from FQRNT. This project was also made possible by and Discovery grants to P. Francus and G. St-Onge. Many thanks to Dr. Sandrine Solignac fruitful discussions.