Definitions for unconformityˌʌn kənˈfɔr mɪ ti
This page provides all possible meanings and translations of the word unconformity
Random House Webster's College Dictionary
un•con•form•i•tyˌʌn kənˈfɔr mɪ ti(n.)(pl.)-ties.
lack of conformity; incongruity; inconsistency.
Geol. a discontinuity in a stratigraphic sequence.
Origin of unconformity:
a lack of conformity
a gap in time in rock strata, where erosion occurs while deposition slows or stops
want of conformity; incongruity; inconsistency
want of parallelism between strata in contact
An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous. In general, the older layer was exposed to erosion for an interval of time before deposition of the younger, but the term is used to describe any break in the sedimentary geologic record. The significance of angular unconformity was shown by James Hutton, who found examples of Hutton's Unconformity at Jedburgh in 1787 and at Siccar Point in 1788. The rocks above an unconformity are younger than the rocks beneath. An unconformity represents time during which no sediments were preserved in a region. The local record for that time interval is missing and geologists must use other clues to discover that part of the geologic history of that area. The interval of geologic time not represented is called a hiatus.
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