1. Plural of disconformity; surfaces of erosion or non-deposition between rock layers that are not parallel, indicating a significant time gap in the geological record.
Usage: geology; technical term
2. Instances of lack of agreement or harmony; disagreements or inconsistencies.
Usage: formal; rare usage

Examples

• The geologist identified several disconformities in the rock strata that revealed periods of erosion.
• Disconformities in the sedimentary layers indicate major gaps in the depositional history.
• The study of disconformities helps scientists understand the timing of tectonic events.
• These disconformities represent millions of years of missing geological record.
• The boundary between the two rock formations showed clear disconformities.