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Applications of confocal macroscope-microscope luminescence imaging to sediment cores
Ribes, A.C.; Rack, F.R.; Tsintzouras, G.; Damaskinos, S.; Dixon, A.E. (2006). Applications of confocal macroscope-microscope luminescence imaging to sediment cores, in: Rothwell, R.G. (Ed.) New techniques in sediment core analysis. Geological Society Special Publication, 267: pp. 141-150
In: Rothwell, R.G. (Ed.) (2006). New techniques in sediment core analysis. Geological Society Special Publication, 267. Geological Society: London, UK. ISBN 1-86239-210-2. 266 pp., more
In: Hartley, A.J. et al. (Ed.) Geological Society Special Publication. Geological Society of London: Oxford; London; Edinburgh; Boston, Mass.; Carlton, Vic.. ISSN 0305-8719, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Ribes, A.C.
  • Rack, F.R.
  • Tsintzouras, G.
  • Damaskinos, S.
  • Dixon, A.E.

Abstract
    We demonstrate the successful application of a novel, confocal scanning laser macroscope - microscope (cslM/m) system for non-invasive imaging of samples taken from lake and ocean sediment cores. Advantages of the macroscope-microscope system over other macroscopic luminescence imaging techniques, such as scanning electron microscopy-based cathodoluminescence and scanning-stage laser imaging, are highlighted and the implications for new core analysis techniques are explored. The macroscope-microscope can image specimens ranging from 25 × 25 µm up to 7.5 × 7.5 cm in under 10 s using reflected light or photoluminescence as contrast mechanisms. Macroscope mode is used to rapidly survey the specimen and provide a photoluminescence 'roadmap'. Microscope mode is used to provide ultra-high-resolution images of microfossils or areas of interest. Laser scanning is non-invasive and does not require any preparation of the specimen. Photoluminescence and fluorescence imaging results are shown for an entire core section recovered from Lake Huron by the Geological Survey of Canada (GSC). Photoluminescence images are shown for Ocean Drilling Program samples of a diatom mat and a radiolarian microfossil within the sample, a laminated interval of sediment from the Santa Barbara Basin (Site 893) and specimens from the Scotian Shelf (collected by the GSC).

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