Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6611001
Is Reference of Surrounding rock-en#Sense
Roof and floor strata-en#Sense
Roche encaissante-fr#Sense
Country rock-en#Sense
Adjacent strata-en#Sense
Attendant strata-en#Sense
Associated strata-en#Sense
Associated beds-en#Sense