How did the erosion happen? At what time period was that much water there? | Hacker News

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		taejavu on May 16, 2024 \| parent \| context \| favorite \| on: Egypt's pyramids may have been built on a long-los... How did the erosion happen? At what time period was that much water there?

colibri727 on May 16, 2024 | [–]

https://en.wikipedia.org/wiki/African_humid_period

https://en.wikipedia.org/wiki/Sahara_pump_theory

robbiep on May 16, 2024 | [–]

You know sand and wind erode as well, right?

nvilcins on May 17, 2024 | [–]

Different ways of erosion leave different kinds of traces. The ones in the Sphinx enclosure are indicative of water (more specifically - rainfall) erosion.

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