A fifth of Earth’s geologic history is missing. One theory: “colossal crustal consumption” by glacial erosion during ’Snowball…

2019-01-06 IFTTT, Twitter, hautepop

A fifth of Earth’s geologic history is missing. One theory: “colossal crustal consumption” by glacial erosion during ‘Snowball Earth’, a whole-planet ice age 700 million years ago.

This is wild:https://t.co/6pQRJpBEBX
— Jay Owens (@hautepop) January 5, 2019

(via http://twitter.com/hautepop/status/1081650405157883905)