Eli5 Where does the dirt come from?

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When looking at a geological timescale, typically ‘the deeper you dig, the older stuff gets’, right?
So, where does this buildup of new sediment come from?
I understand we’re talking about very large timeframes here, but I still dont really get it.

In: 19

26 Answers

Anonymous 0 Comments

tell me you dont dust without telling me you dont dust! lol

iirc dirt is an accumulation of finely eroded rocks combined with organic matter that gets mixed together through weathering, water, in floods and through other disturbances like animals or people and insects.

Anonymous 0 Comments

the main thing is, old leaves give it a year after they fall in a slight dent in a path, mud will form is probably the best way to see it

Anonymous 0 Comments

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Anonymous 0 Comments

Rocks get beat up into little particles and then dead things get mixed in by wind and rain and worms.

Anonymous 0 Comments

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Anonymous 0 Comments

Worms make dirt, and dirt makes the earth.
And people hold hands, and feel terrific
Food comes from dirt, it’s scientific.