SNOW BALL THEORY

glacier spread across

glacial deposits gong back

radiation from🌞

absorbed

reflect

SURFACE ALBEDO :radiation 返回的量

ocean water :al ↓ 热效

ice &snow al ↑ e.g.
白衣凉,黑衣热

cooling

ice cover↑

SA↑ climate↓

ice 多

ICE ALBEDO FEEDBACK

一般被 制止

但根据Snow ball earth 继续了

导致冰一直增加,cover至ocean

chemical index of alteration:环境造成的chemical changes in rock

↑ :warm/humid

↓cool/dry

结论:不持续