Significado de "Regolith"

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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