Difference between revisions
snowball-earth
Status and infobox
- status:
—→ partial - kind:
—→ problem - year:
—→ 1992 - statement:
—→ Did ice cover the whole planet during the Cryogenian, and how did life survive?
Source +18 −0
+---
+title: Snowball Earth
+kind: problem
+status: partial
+year: 1992
+authors: Joseph Kirschvink
+statement: Did ice cover the whole planet during the Cryogenian, and how did life survive?
+space: early-earth
+---
+Glacial deposits at the equator 700 million years ago support near-global glaciation. Whether the oceans froze completely or kept open water near the equator is debated, and the answer bears on how complex life survived.
+
+Posed 1992, Joseph Kirschvink.
+
+## Sources
+
+- [Wikipedia: Snowball Earth](https://en.wikipedia.org/wiki/Snowball_Earth)
+
+[[Space:early-earth|Early Earth]] · [[Continent:earth|Earth]]
Revision 127 as rendered
Glacial deposits at the equator 700 million years ago support near-global glaciation. Whether the oceans froze completely or kept open water near the equator is debated, and the answer bears on how complex life survived.
Posed 1992, Joseph Kirschvink.