Brittle Deformation in Sandstone Diagenesis as Revealed by Scanned Cathodoluminescence Imaging with Application to Characterization of Fractured Reservoirs

  • Kitty L. Milliken
  • Stephen E. Laubach
Chapter

Abstract

The stable observing conditions, high magnifications, and sensitive light detection that are characteristic of scanning electron microscope-based cathodoluminescence (scanned-CL) imaging overcome several of the disadvantages of conventional light microscope-based CL systems, allowing more routine application of this petrographic method for description of micron-scale textural relationships between detrital grains, cements, and fractures in sandstones. Scanned-CL imaging has great utility for documenting the interrelation between deformation and diagenesis at the micrometer scale in siliciclastic rocks. A survey of sandstone units of widely varying age, location, and burial history suggests that quartz-lined and quartz-filled microfractures are nearly ubiquitous in lithified quartzose sandstones. Because fractures formed in association with quartz precipitation are prevalent in quartz-cemented siliciclastic hydrocarbon reservoir rocks, scanned-CL imaging of microfractures can potentially yield important information on subsurface fracture populations that have economic significance.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Kitty L. Milliken
  • Stephen E. Laubach

There are no affiliations available

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