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[探索发现] 【整理】2010-05-23 黄石公园-3

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Hot rocks below ground heat the water under pressure for around 90 minutes. Suddenly some water spurs through a tiny 5 inch wide crack in the rocks. This causes a drop in the pressure within the water chamber. In the instant, thousands of gallons of water turn to the steam and blustted of into the air.

When the pressure build up enough steam bubble starts arrival into the surface and the system.. Old faceful shows that rocks below the surface are very hot.

Scientist find clues to a violent past 34 miles southeast to the hot ps on the shores of the secular lake called Indian ponds. It's a field of geologist. My job is basically and detective. So I try to determine where the origin is and what the history is the vva the rock. Ok, now, in this particular case, look at this, this rock, we need to study it, it was just a lose sand. You can just put your finger to it.

The solid b is formed from millions of individual grain of sand. Mic and reveals the grain cimentity gather by chemicals and pressure deep under the ground. But how did the rocky get to the surface? More agin has chemical data the rocks, some discover that 3,000 years ago the bond was blusted out of the ground by the hot water explosion of the gaganic gazas.

You would see boiling water, rock fragments and fine meatrial being ejected open to the air as high as 3-5 thousand feet and then some point meteaial will start to rain down from this explosion cullon. Now you wouldn't want be standing next to one of those.

Indian ponds is the crital that the give left behind.
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