The Semirara coalfields formed from 12-23 million years ago along what was then a coastal plain-similar to the current geologic environment of the southeastern Gulf coast of the United States.
塞米拉拉煤矿形成于一亿两千万至两亿三千万年前，那时的塞米拉拉煤矿是一片沿海平原，就如同现在美国东南部的墨西哥湾的地质环境一样。
A wide bay of the Indian Ocean on the southern coast of Australia. Much of the coastline consists of high cliffs extending inland to form the Nullarbor Plain.
大澳大利亚湾：印度洋在澳大利亚南海岸的一个宽阔海湾。其大部分海岸线上有许多高的悬崖，向内陆延伸进形成了纳勒博平原。
A wide bay of the Indian Ocean on the southern coast of Australia. Much of the coastline consists of high cliffs extending inland to form the Nullarbor Plain.
大澳大利亚湾：印度洋在澳大利亚南海岸的一个宽阔海湾。其大部分海岸线上有许多高的悬崖，向内陆延伸进形成了纳勒博平原。
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