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Post by puppie96 on Aug 28, 2006 1:43:53 GMT -5
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Post by Jack ( Yorkshire) on Aug 28, 2006 3:59:43 GMT -5
Hi Puppie,
Its amazing how near the trees are to the thermal ?
I would have thought the area would be to hot to support tree growth.?
Jack Yorkshire UK
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Post by ladyt on Aug 28, 2006 6:22:58 GMT -5
Wow.
Tonja
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KG1960
has rocks in the head
Member since August 2008
Posts: 512
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Post by KG1960 on Aug 28, 2006 12:48:50 GMT -5
Interesting observation, Jack. I have heard that the hot spots move over the years. Note the dead tall trees in the background. The ground was at one time suitable for tree growth long enough for the trees to get that tall, but then it changed. From their size, the alive trees appear to be young. I just skimmed through the US Geological Survey web site on Yellowstone. There were 110 earthquakes just in July! The largest was only 2.9. The ground level is continuing to rise at a rate of about 11 cm in 23 months. FYI: volcanoes.usgs.gov/yvo/index.html
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chassroc
Cave Dweller
Rocks are abundant when you have rocktumblinghobby pals
Member since January 2005
Posts: 3,586
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Post by chassroc on Aug 28, 2006 13:19:53 GMT -5
I think the dead tall trees were probably burned in a severe wild fire at Yellowstone a few years ago...There was a bad burn a few years ago that opened up a lot of arears for better viewing...it also opened up the us forest service eyes to the purpose of wildfires; We no longer have a Smoky the Bear- only you can prevent forest fires mentality...the forest service even performs prescribed burns especially of the underbrush to reduce the severity of fires in times of drought...csroc
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KG1960
has rocks in the head
Member since August 2008
Posts: 512
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Post by KG1960 on Aug 28, 2006 18:29:57 GMT -5
Yes, I think you're right about the fire, I forgot. But, still interesting to read about the geology there.
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Post by puppie96 on Aug 28, 2006 23:29:01 GMT -5
You're right, this was a burn area. In fact, the whole hike up there (and it is ALL uphill, baby!) is like through a Christmas tree farm, with deadfall here and there. It is also true that you can often see the evidence of movement of a thermal area by the death of the trees. Every so often holes open up and spew steam in the middle of parking lots, too.
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stefan
Cave Dweller
Member since January 2005
Posts: 14,113
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Post by stefan on Aug 30, 2006 12:59:11 GMT -5
cool-
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