unconformable
Americanadjective
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not conformable; not conforming.
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Geology. indicating discontinuity of any type in a stratigraphic sequence.
adjective
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not conformable or conforming
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(of rock strata) consisting of a series of younger strata that do not succeed the underlying older rocks in age or in parallel position, as a result of a long period of erosion or nondeposition
Other Word Forms
Derived Forms
Etymology
Origin of unconformable
First recorded in 1585–95; un- 1 + conformable
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
I’m always going to talk about what makes people unconformable.
From Los Angeles Times • Feb. 20, 2025
It is critical at a time of public health crisis to be aware of the line between panic and preparation, to speak tough and unconformable truths without being alarmist.
From Washington Times • Mar. 9, 2020
Along the Atlantic coast the Mesozoic peneplain may be traced shoreward to where it disappears from view beneath an unconformable cover of early Tertiary marine strata.
From The Elements of Geology by Norton, William Harmon
A geologist will think of the helpful triumph of taking from the full rock record here to fill out the unconformable strata there, until a geological column is built up.
From Sunday-School Success A Book of Practical Methods for Sunday-School Teachers and Officers by Wells, Amos R.
I observed here that the travertin was unconformable to the lacustrine beds, its inclination according with the slope of the sides of the valley.
From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Lyell, Charles, Sir
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
