Significado de "Regolith"

Avatar do usuário jlmmelo 2430 8 66
Martian ‘rocket test’ proves worms can thrive in Red Planet soil
Published time: 28 Nov, 2017 12:37
[...]
The faux extraterrestrial soil, made from volcanic soil, is used by NASA to replicate the chemical make-up of Mars regolith matter. rt.com

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Regolith /ˈrɛɡəlɪθ/

Geology
The layer of unconsolidated solid material covering the bedrock of a planet.

Origin
Late 19th century: from Greek rhēgos ‘rug, blanket’ + -lith.

Example:
‘Many images show evidence of a thick loose regolith or gravel/sand/silt (lama) layer that could be collected easily by scooping (escavação com espátula) or shoveling (ou com pá).’
https://en.oxforddictionaries.com/definition/regolith

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Regolito, rególito
Camada de sedimentos resultantes da fragmentação de rochas subjacentes; rególito.
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Avatar do usuário PPAULO 41975 6 33 737
Hmm, from Greek rego (blanket - manto), in Portuguese meaning "manto de alteração" in soil classification parlance. And "lithe" (rock - rocha).

Interesting how you guys are digging deeper these days! I had never seen such word. How come. It was defined by a geologist in 1897!