TY - RPRT TI - Mapping of compositional properties of coal using isometric log-ratio transformation and sequential Gaussian simulation – A comparative study for spatial ultimate analyses data AU - C. Özgen Karacan AU - Ricardo A. Olea PY - 2018 DO - 10.1016/j.gexplo.2017.11.022 UR - https://pubs.usgs.gov/publication/70208983 ID - 70208983 ER -