cuirasse -> crust

[Vion]

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cuirasse, sur cuirasse, sous cuirasse. These are  are geological terms.
Des cavités sur- et sous-cuirasse sur un petit domaine de palier rocheux en cours d'érosion sont aussi observés dans la partie sud de la berme
-thanks :-)

[Carolyn]

According to an entry in Kudoz on Proz, it could mean crust.
http://www.proz.com/kudoz/french_to_english/mining_minerals_gems/1040674-cuirasse_ferrugineuse.html

Also, according to the Collins Robert French Dictionary, this word means armour (-plate or -plating), breast-plate. Applied to your context, perhaps you could say plate, as in a geological plate.

[Vion]

Thank you Carolyn,

I've found a couple of sources that seem to show it's use as a proper English word as well:

http://books.google.gr/books?id=n9cdaPZr1RwC&pg=PT339&lpg=PT339&dq=cuirassed+domain&source=web&ots=-Y9VlECIV_&sig=X5HMEUt_WM-NjTyz6Ta9L7CukOU&hl=en
http://books.google.gr/books?id=n9cdaPZr1RwC&pg=PT118&lpg=PT118&dq=above+and+below+the+cuirasse&source=web&ots=-Y9VlDLM_W&sig=g8fmWg0aInBfZ-IZdI0cOHpnW8U&hl=en
and a possible synonym:
indurated http://cat.inist.fr/?aModele=afficheN&cpsidt=3766524

[Vion]

After more study, I did find "crust" to be the best English translation, and one that is widely used. Thanks again Carolyn :-)

[Carolyn]

Thanks again Carolyn :-)

No problem!