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小木虫论坛-学术科研互动平台 » 科研生活区 » English Cafe » Entertainment » Younger Dryas event
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阿布2010

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[交流] Younger Dryas event

When the Ice Age over,the earth climate which about 17000 years ago began wram up, and the temperature increased gradually. Glaciers in North American, North Europe and the two poles began melting, at the same time Sea-level rose gradually. As a result the Bohai sea, Huanghai sea and Norwegian sea grasslands were flooded. Glaciers in Norht American and Northe Europe had melted quite a most, the North and South were spring blossoms at the time 13000 years ago. But temperature suddenly decreased acutely at the time 12640 years ago, the whole world truned into a Jack Frost. As a consequence many plants and animals which had migrated to the high latitude died like files. This happend very suddenly, the temperatue decreased about 7-8 centigrade in just a decade. The temperatue decreased lasted thousand years, and until 11500 years ago the temperatue began rose up again. This is the famous Yonger Dryas event in earth history. After the Yonger Dryas event our humans entered into  the Neolithic Age, and at the same time the Agriculture appeared.
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永远不要对未来失去希望，因为我相信未来属于有希望的人！
1楼 2011-04-20 16:08:56
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wry3300
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小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
2楼2011-04-20 16:11:26
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xia_chong

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小木虫(金币+0.2):抢了个小板凳，给个红包
What do you want to share with us? What's your opinion?
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Godhelpsthosewhohelpthemselves!
3楼2011-04-20 16:12:43
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阿布2010

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引用回帖:
Originally posted by xia_chong at 2011-04-20 16:12:43:
What do you want to share with us? What's your opinion?

I just want to tell  the history of our earth and expand our horizon. To well know the develop process of our planet is very important to predict the future.
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永远不要对未来失去希望，因为我相信未来属于有希望的人！
4楼2011-04-20 16:16:57
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xia_chong

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引用回帖:
Originally posted by 阿布2010 at 2011-04-20 16:16:57:
I just want to tell  the history of our earth and expand our horizon. To well know the develop process of our planet is very important to predict the future.

OK! I see. Is your major about earth physics?
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Godhelpsthosewhohelpthemselves!
5楼2011-04-20 16:25:42
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witch_girl

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引用回帖:
Originally posted by 阿布2010 at 2011-04-20 16:16:57:
I just want to tell  the history of our earth and expand our horizon. To well know the develop process of our planet is very important to predict the future.



nice~
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Make it or Break it
6楼2011-04-20 16:32:13
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阿布2010

金虫 (正式写手)
引用回帖:
Originally posted by xia_chong at 2011-04-20 16:25:42:
OK! I see. Is your major about earth physics?

No, I major in environment science. I just interested in earth history
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永远不要对未来失去希望，因为我相信未来属于有希望的人！
7楼2011-04-20 16:56:29
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xia_chong

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引用回帖:
Originally posted by 阿布2010 at 2011-04-20 16:56:29:
No, I major in environment science. I just interested in earth history

Got it!
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Godhelpsthosewhohelpthemselves!
8楼2011-04-20 16:57:32
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xuediandongxi

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phu_grassman(金币+2): You can always make long comments. Good job. 2011-04-20 18:01:30
You told us some history of the earth which I had little about before. You just told us the temperature changes happened a long time ago. Could you tell me what caused these changes in temperatures? In addition, I am interested how to know these changes ever hanppened in our planet. I mean if there is sufficient evidence to support the opinion that at least two temperature changes happened in our planet.
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9楼2011-04-20 17:35:12
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阿布2010

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引用回帖:
Originally posted by xuediandongxi at 2011-04-20 17:35:12:
You told us some history of the earth which I had little about before. You just told us the temperature changes happened a long time ago. Could you tell me what caused these changes in temperatures ...

There is no sufficient evidence to explain why the temperature changes suddenly.  A herb named Dryas found in Aectic region can prove the changes in temperature.
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永远不要对未来失去希望，因为我相信未来属于有希望的人！
10楼2011-04-20 17:44:46
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