angular unconformity


Also found in: Dictionary, Legal.

angular unconformity

[′aŋ·gyə·lər ‚ən·kən′fȯrm·əd·ē]
(geology)
An unconformity in which the older strata dip at a different angle (usually steeper) than the younger strata.
References in periodicals archive ?
The Warrensburg Sandstone Lies with angular unconformity upon cyclothemic rock units belonging to the Desmoinesian Series (Figures 3 and 4).
Figure 3 is a structural cross-section along Post Oak Creek showing the angular unconformity between the horizontal Warrensburg Sandstone and an excellent section of underlying dipping Desmoinesian Series sedimentary rocks.