十二艘货船正等候装载猎人谷的煤，那里是澳大利亚最大产煤区之一。
A dozen are queuing to load coal from the Hunter Valley, one of Australia's biggest coal-mining regions.
各层序分别由低位体系域的下切谷充填沉积的砂岩、砂砾岩，海侵体系的灰岩、泥灰岩、泥岩、煤和高位体系域的碎屑岩和煤组成。
Each sequence is composed of incised valley sandstone of low system tract, limestone, marl, coal and mudstone of transgressive system tract and clastics and coal of high system tract.
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