Forces may reside within a crust.Logical formLearned from6 sentences. Forces can be in a crust.Logical formLearned from6 sentences. Blocks can be constituted-of-or-filled-with continental crust.Logical formLearned from6 sentences. A crust can be constituted-of-or-filled-with rock.Logical formLearned from6 sentences. A crust may pertain-to continents.Logical formLearned from6 sentences. Slice can be constituted-of-or-filled-with oceanic crust.Logical formLearned from6 sentences. Stresses can be in a crust.Logical formLearned from6 sentences. A focus can be on levels of a crust.Logical formLearned from6 sentences. A crust may be compressed.Logical formLearned from6 sentences. A crust can be altered.Logical formLearned from6 sentences. An oceanic crust may undergo an alteration.Logical formLearned from6 sentences. An oceanic crust can be adjacent.Logical formLearned from6 sentences. Crust may undergo exposures.Logical formLearned from6 sentences. A crust may be created.Logical formLearned from6 sentences. An origin may pertain-to a crust.Logical formLearned from6 sentences.