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1 煤炭基地与地质条件新南威士的绝大部分煤炭资源都集中在悉尼盆地。悉尼盆地的煤属于二叠纪烟煤。煤层主要形成在火成岩的活动区,而且集中在盆地的北部和西部。一般情况下,煤层是近水平的,所有的煤层倾角均小于10°(97.3％的可采煤层倾角均小于5°),它们被层状岩体所覆盖,赋存在冲刷和三角洲地带。这类岩层包括泥岩、页岩,但厚砂岩占多数,且有砾石。悉尼盆地有五个煤田,从北开始顺序为冈纳达、亨特、纽卡斯尔、南部和西部煤田。每个煤田的总储量见表1。
Coal Base and Geological Conditions Most of New South Wales’s coal resources are concentrated in the Sydney Basin. The coal in the Sydney Basin is Permian bituminous coal. The coal seam is mainly formed in the active area of igneous rocks and is concentrated in the north and the west of the basin. In general, the coal seam is nearly horizontal with all coal seam dip angles less than 10 ° (97.3% of the recoverable coal seam dip angles are less than 5 °). They are covered by stratigraphic rock mass and exist in scour and delta zones. Such rock formations include mudstone and shale, but thick sandstone accounts for the majority with gravel. There are five coalfields in the Sydney Basin, starting with Gunung Da, Hunter, Newcastle, and the southern and western coalfields from north. The total reserves of each coalfield are shown in Table 1.