- UID
- 1523248
- 在线时间
- 小时
- 注册时间
- 2022-7-21
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
P1: 引出主旨
- 什么导致 变冷+ diversification 的趋势
- Warm wet weather disappear in the past 15-40 million years
- Atlantic ocean has expanded at the expense of the pacific
P2: 猜测一：continents moving导致
- 大西洋expand, 太平洋缩小
- 古老的equatorial sea extend, Eurasia 变小成 Mediterranan Sea
- land更多露出来
- conputer simulation 对于非常长期的趋势观测有效，但对过去40million年时间的观测短太短
P2-5: 猜测二：大气层CO2减少导致 ，解释CO2如何作用，及2 major processes：
Process 1:
- sea-floor spreading如果变慢 -> 减少CO2到大气层 -> 气温降低 (sea-floor spreading前40 million years几乎无变化)
Process 2:
- Plateau uplift (increase chemical weathering of rock) -> alter climate change
- 雨水、地下水里的CO2和石头里的mineral反应 -> 流到大海 -> 被Plankton+珊瑚摄入 -> 降解在海底 -> lock CO2 in the ocean plateau
解释为何地区性有特别大温差
MR proposed:
- Plateau uplift + mountain range -> increase rate of chemical erosion of rock
- Heavy monsoon -> heavy rain
- Regional: faulting + folding expose fresh rock to weathering process
- Steeper slopes created by plateau uplift -> faster chemical attack on rock
- 例子：Long term uplift in Tibet and other regions 大气层CO2 remove 的速度 increase |
|
[复制链接]
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2022-10-29 21:31:50
