3D quantification of mineral components and porosity distribution in Westphalian C sandstone by microfocus X-ray computed tomography |
| |
| Authors: | Haili Long Rudy Swennen Anneleen Foubert Manuel Dierick Patric Jacobs |
| |
| Institution: | aGeology, Dept. of Earth and Environmental Sciences, Katholieke Universiteit Leuven, Celestijnenlaan 200E, B-3001, Heverlee, Belgium;bDepartment of Subatomic and Radiation Physics, Proeftuinstraat 86, 9000 Gent, Belgium;cDepartment of Geology and Soil Science, Krijgslaan 281 S8, 9000 Gent, Belgium |
| |
| Abstract: | Microfocus X-ray computed tomography (µCT) measurements were performed on deltaic sandstone samples from the diagenetically altered Westphalian C strata (Campine basin, north-east Belgium) in order to collect three dimensional data on mineral (quartz, kaolinite, ankerite, etc.) and porosity distribution. The acquired µCT data were compared with point counting results of stained impregnated thin-sections to qualify the sensitivity of µCT. Comparison between techniques shows positive results with regard to the quantification of main mineral phases such as quartz and ankerite, and porosity distribution. However, major discrepancies exist when studying the clay minerals. This can be explained by the influence of microporosity associated with these clay minerals, resulting in partial volume effects. |
| |
| Keywords: | µ CT Ankerite Quartz Kaolinite Porosity 3D petrography |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
