雪球地球

历史上最严重的冰河期，被称为雪球地球（SnowballEarth）期，当时地球完全被冰层覆盖。6.35亿年前，永久冻结带释放出大量甲烷，这一时期突然结束。

The most severe ice age in history , a period of total glaciation known as Snowball Earth , ended suddenly 635m years ago when large amounts of methane were released from areas of permafrost .

“雪球地球”假说的提出解释了一些新元古代冰川现象，如低纬度和低海拔冰川沉积、帽碳酸盐岩、负的碳酸盐δ13C漂移和BIF铁矿等现象。

A hypothesis of " snowball Earth " has been presented to explain phenomena related to the Neoproterozoic glaciations , such as the low-latitude and low-altitude glacial deposits , cap carbonates , negative δ ~ ( 13 ) C shifts , BIF , and others .

新元古代晚期盖帽碳酸盐岩的成因与雪球地球的终结机制

Formation of Late Neoproterozoic Cap Carbonates and Termination Mechanism of Snowball Earth

新元古代的雪球地球

" Snowball Earth " During the Neoproterozoic

新元古代在全球范围内出现了几期冰期事件，称之为雪球地球事件。

There were several glacial events around the world which are called Snowball Earth during the late Neoproterozoic time .

“雪球地球”的极端气候环境变化，促进了生命的演化，造成了寒武纪生物大爆发。

The extreme climate arisen from " snowball Earth " may promote evolution of life and trigger the " Cambrian Explosion " .

论文中，这种现象被命名为错误和压力的雪球效应。新元古代的雪球地球

This phenomenon is called , in this thesis , an error stress ball effect . " Snowball Earth " During the Neoproterozoic