Stratigraphic Record
Permanent link to this comic:
https://xkcd.com/1194/
Image URL (for hotlinking/embedding):
https://imgs.xkcd.com/comics/stratigraphic_record.png
[[A view of the Earth from space.]]
Nearly 4.5 billion years ago, Earth had liquid water. But all the crust older than 3.5 billion years has been recycled into the mantle by subduction.
[[The same view.]]
A billion years of the stratigraphic record, the memory of the hills, is forever lost to us. What was it
like
here, four billion years ago?
[[The same view.]]
Earth, what
secrets
do you have?
[[The same view.]]
Earth: come closer
[[A closer view.]]
[[An even closer view.]]
Earth:
i'll never tell.
{{Title text: All we have are these stupid tantalizing zircons and the scars on the face of the Moon.}}
Comics I enjoy:
Three Word Phrase,
SMBC,
Dinosaur Comics,
Oglaf (nsfw),
A Softer World,
Buttersafe,
Perry Bible Fellowship,
Questionable Content,
Buttercup Festival,
Homestuck,
Junior Scientist Power Hour
This work is licensed under a
Creative Commons Attribution-NonCommercial 2.5 License.
This means you're free to copy and share these comics (but not to sell them). More details.