Example Sentences

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There are three types of unconformities, nonconformity, disconformity, and angular unconformity.

From Textbooks • Jan. 1, 2017

Disconformities are unconformities that occur between parallel layers of strata indicating either a period of no deposition or erosion.

From Textbooks • Jan. 1, 2017

Recognizing unconformities is important for understanding time relationships in sedimentary sequences.

From Textbooks • Jan. 1, 2015

There are four types of unconformities, as summarized in Table 8.1, and illustrated in Figure 8.9.

From Textbooks • Jan. 1, 2015

It is largely by means of unconformities that we read the history of mountain making and other deformations and movements of the crust.

From The Elements of Geology by Norton, William Harmon