The atlas · Origins · The early Earth
Outline · being written
The first oceans
When the first oceans formed, and what the oldest crystals say about it.
- Page type
- A lesson, led by a working diagram
- Collection
- Origins, the early Earth
- When
- About 4,400 million years ago to 4,000 million years ago, in the Hadean and Archean. The finished piece will give dates from its sources.
- Status
- Planned and outlined. Every fact in it will be checked against a named source and listed on Sources before it goes up.
Read alongside
- The first billion years Lesson
- The oldest rocks Explorer · outline
- Where the water came from Lesson · outline
- The faint young Sun Lesson · outline
- Was there a storm of impacts? Lesson · outline