A seismic investigation into the geometry and controls upon alluvial architecture in the Walloon Subgroup, Surat Basin, Queensland
| Autor: | Joan Esterle, Valeria Bianchi, Daren Shields |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010506 paleontology
Coal measures Geometry Structural basin 010502 geochemistry & geophysics 01 natural sciences Crevasse splay Crevasse Facies Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences Alluvium Sedimentology Geology 0105 earth and related environmental sciences Communication channel |
| Zdroj: | Australian Journal of Earth Sciences. 64:455-469 |
| ISSN: | 1440-0952 0812-0099 |
| DOI: | 10.1080/08120099.2017.1312524 |
| Popis: | The sedimentology of the Walloon Subgroup (WSG) has been extensively studied; however, gaps exist in our understanding of the succession's alluvial architecture and the mechanisms controlling its complex internal organisation. Successful coal-seam gas development in the Surat Basin requires the construction of predictive facies models, which in turn necessitates a fulsome understanding of the geometry and controls on the spatial and temporal distribution of alluvial sub-environments. To improve our models of WSG facies, this study employs an open-source high-resolution 3D seismic dataset available on the western limb of the Surat Basin. Integration of core, wireline and seismic data has resolved the geometries of four discrete alluvial architectural elements, representing simple channel, channel belt, crevasse splay complexes and peat-mire sub-environments. Channel belts were found to be 1600–2000 m wide, simple channels 400–800 m in width and crevasse splays averaging 3.5 × 5.5 km. Coal bodies ma... |
| Databáze: | OpenAIRE |
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