Abstract
This study provides a description of a method of observing conodont elements in pelagic deep-sea sedimentary rocks (chert and siliceous claystone) using laboratory-based X-ray computed microtomography for the first time. By careful preparation of conodonts embedded in rock samples and processing of tomographic sections, we managed to produce 3D images with high enough spatial resolutions for identification of conodonts at the species level. The method established in this study drastically increases the efficiency of obtaining conodont data by allowing the observation of specimens that are impossible to extract by the conventional acid dissolution methods. It is also advantageous to observation of conodonts on rock surfaces using optical microscopes in that the angle of view is unrestricted. The use of X-ray microscopes will promote high-resolution investigations of biostratigraphy and will also be useful in the quantitative measurement of morphological characters of conodonts in pelagic deep-sea sedimentary rocks.
Published Version
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