Articles | Volume 19
Sci. Dril., 19, 13–16, 2015
Sci. Dril., 19, 13–16, 2015

Technical development 29 May 2015

Technical development | 29 May 2015

An innovative optical and chemical drill core scanner

A. S. L. Sjöqvist1, M. Arthursson1, A. Lundström1, E. Calderón Estrada1, A. Inerfeldt1, and H. Lorenz2 A. S. L. Sjöqvist et al.
  • 1Minalyze AB, Industrivägen 4, 433 61 Sävedalen, Sweden
  • 2Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden

Abstract. We describe a new innovative drill core scanner that semi-automatedly analyses drill cores directly in drill core trays with X-ray fluorescence spectrometry, without the need for much sample preparation or operator intervention. The instrument is fed with entire core trays, which are photographed at high resolution and scanned by a 3-D profiling laser. Algorithms recognise the geometry of the core tray, number of slots, location of the drill cores, calculate the optimal scanning path, and execute a continuous XRF analysis of 2 cm width along the core. The instrument is equipped with critical analytical components that allow an effective QA/QC routine to be implemented. It is a mobile instrument that can be manoeuvred by a single person with a manual pallet jack.