| 查看: 907 | 回复: 12 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[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. |
回复此楼» 猜你喜欢
求调剂推荐
已经有3人回复
-
085400电子信息类（川大控制工程）求调剂可跨专业 求老师联系
已经有6人回复
-
材料工程281还有调剂机会吗
已经有42人回复
-
290调剂生物0860
已经有36人回复
-
273求调剂
已经有6人回复
-
药学305求调剂
已经有6人回复
-
求调剂学校
已经有12人回复
-
山东省基金2026
已经有8人回复
-
求助调剂，跨调
已经有19人回复
-
求调剂
已经有13人回复
xia_chong
金虫 (文坛精英)
- ESEPI: 43
- 应助: 0 (幼儿园)
- 贵宾: 1.591
- 金币: 10270.8
- 散金: 2377
- 红花: 34
- 沙发: 160
- 帖子: 12455
- 在线: 1941.8小时
- 虫号: 804303
- 注册: 2009-07-06
- 性别: GG
- 专业: 粒子物理学和场论
- 管辖: English Cafe
What do you want to share with us? What's your opinion? 
3楼2011-04-20 16:12:43
4楼2011-04-20 16:16:57
xia_chong
金虫 (文坛精英)
- ESEPI: 43
- 应助: 0 (幼儿园)
- 贵宾: 1.591
- 金币: 10270.8
- 散金: 2377
- 红花: 34
- 沙发: 160
- 帖子: 12455
- 在线: 1941.8小时
- 虫号: 804303
- 注册: 2009-07-06
- 性别: GG
- 专业: 粒子物理学和场论
- 管辖: English Cafe
5楼2011-04-20 16:25:42
witch_girl
金虫 (文坛精英)
- ESEPI: 53
- 应助: 0 (幼儿园)
- 贵宾: 0.903
- 金币: 1333.9
- 散金: 15217
- 红花: 105
- 沙发: 52
- 帖子: 14445
- 在线: 1679.7小时
- 虫号: 857925
- 注册: 2009-09-27
- 专业: 信息处理方法与技术
- 管辖: English Cafe
6楼2011-04-20 16:32:13
