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。
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.
在20至30米陨石坑，我们发现大概在一打，至少两加仑的水水桶。
In the 20 to 30 meter crater we found maybe about a dozen, at least, two-gallon buckets of water.
积极口，说到底，发送红色的熔岩在其两岸，一旦在一个芽，而热起来的溪流米至100米到空气中。
The active mouth boils, sending red lava over its sides, and once in a while shoots hot streams up to 100 metres into the air.
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