noun, plural disconformities.
Geology. the surface of a division between parallel rock strata, indicating interruption of sedimentation: a type of unconformity.
Archaic. nonconformity.

1595–1605; dis-1 + conformity

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World English Dictionary
disconformity (ˌdɪskənˈfɔːmɪtɪ)
n , pl -ties
1.  lack of conformity; discrepancy
2.  the junction between two parallel series of stratified rocks, representing a considerable period of erosion of the much older underlying rocks before the more recent ones were deposited

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American Heritage
Science Dictionary
disconformity   (dĭs'kən-fôr'mĭ-tē)  Pronunciation Key 
A type of unconformity in which the successive strata are parallel.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Occasionally a disconformity or diastem is indicated within the marlstone.
Base of unit is disconformity or local angular unconformity.
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