unconformability love

unconformability

Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The quality or state of being unconformable.
  • n. Lack of parallelism between one series of strata and another, especially when due to a disturbance of the position of the earlier strata before the latter were deposited.

from the GNU version of the Collaborative International Dictionary of English

  • n. The quality or state of being unconformable; unconformableness.
  • n. Lack of parallelism between one series of strata and another, especially when due to a disturbance of the position of the earlier strata before the latter were deposited.

from The Century Dictionary and Cyclopedia

  • n. The condition of not being conformable: as, the unconformability of two groups of rocks. See conformable, with diagram illustrating the relative position of conformable and unconformable rocks.

Etymologies

Sorry, no etymologies found.

Examples

  • The unconformability of the ochraceous clay and the underlying sandstones might lead to the idea that the two formations belong to distinct geological periods, and are not due to the same agency, acting at successive times.

    The Atlantic Monthly, Volume 18, No. 106, August, 1866

  • It would be easy to multiply instances of similar unconformability in formations of other ages; but a few more will suffice.

    II. Uniformity Of Change

  • The readiest way, perhaps, of persuading the reader that we may dispense with great and sudden revolutions in the geological order of events is by showing him how a regular and uninterrupted series of changes in the animate and inanimate world must give rise to such breaks in the sequence, and such unconformability of stratified rocks, as are usually thought to imply convulsions and catastrophes.

    II. Uniformity Of Change

  • That the subterranean forces have visited different parts of the globe at successive periods is inferred chiefly from the unconformability of strata belonging to groups of different ages.

    II. Uniformity Of Change

  • I thought I had found a case of unconformability, indicating a slip of one portion of the glacier over another, but when I came to examine the intermediate region (X) carefully, I found the structural planes at every intermediate angle, and consequently a perfect transition from the one to the other.

    The Life and Letters of Thomas Henry Huxley

  • The alternations of marine and freshwater deposits, and the frequent unconformability of strata with those which overlie them, tell us plainly of repeated elevations and depressions of the surface, and of denudation on an enormous scale.

    Darwinism (1889)

  • Blocks of granite also abound, of a pinkish tinge; and these with metamorphic rocks, contorted, twisted, and thrown into every conceivable position, afford a picture of dislocation or unconformability which would gladden a geological lecturer's heart; but at high flood this rough channel is all smoothed over, and it then conforms well with the river below it, which is half a mile wide.

    A Popular Account of Dr. Livingstone's Expedition to the Zambesi and its tributaries And of the Discovery of Lakes Shirwa and Nyassa, 1858-1864

  • I found an appearance of unconformability here that I have never been able to detect elsewhere.

    Transactions of the American Philosophical Society

  • Blocks of granite also abound, of a pinkish tinge; and these with metamorphic rocks, contorted, twisted, and thrown into every conceivable position, afford a picture of dislocation or unconformability which would gladden a geological lecturer’s heart; but at high flood this rough channel is all smoothed over, and it then conforms well with the river below it, which is half a mile wide.

    A Popular Account of Dr. Livingstone's Expedition to the Zambesi and Its Tributaries

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