discordant

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discordant
1. Applied to the cross-cutting relationship of an igneous intrusion, e.g. a dyke, when it intersects the bedding planes or foliation in the host rock. See LAW OF CROSS-CUTTING RELATIONSHIPS.

2. Applied to a lack of parallelism between the bedding planes (or tectonic fabric) of one rock unit and others adjacent to it. Compare CONCORDANT.

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