Editing 1194: Stratigraphic Record
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==Explanation== | ==Explanation== | ||
− | + | This comic is comparably straightforward, in that we have no records on earth beyond about 3.5 Billion years ago, because everything solid from before that time has been molten up in the earth mantle, due to tectonic movement. The Alt text hints at the cooler Moon, which stopped re-melting its surface much sooner, so theoretically we could learn something about Earth's history from examining our Moon's surface and makeup. | |
==Transcript== | ==Transcript== | ||
− | :[Image of the | + | :[Image of the earth from space.] |
:Nearly 4.5 billion years ago, Earth had liquid water. | :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. | :But all the crust older than 3.5 billion years has been recycled into the mantle by subduction. | ||
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:A billion years of the stratigraphic record, the memory of the hills, is forever lost to us. | :A billion years of the stratigraphic record, the memory of the hills, is forever lost to us. | ||
− | :What was it | + | :What was it ''like'' here, four billion years ago? |
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:Earth, | :Earth, | ||
− | :What | + | :What ''secrets'' do you have? |
− | : | + | :Earth: Come closer |
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− | :[Zoom in on the Earth | + | :[Zoom in on the Earth.] |
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:Earth: ''i'll never tell.'' | :Earth: ''i'll never tell.'' | ||
{{comic discussion}} | {{comic discussion}} | ||
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[[Category:Comics with color]] | [[Category:Comics with color]] | ||
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