unconformity
Example Sentences
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It echoes James Playfair’s description of the “abyss of time” he glimpsed while viewing a strata unconformity at Siccar Point in 1788, when geology was first emerging as a science.
From The Guardian ● Apr. 20, 2019
This unconformity represents a time where erosive processes took over after millions of years when the lake had finally dried up - to form a new land surface.
From BBC ● Mar. 22, 2018
She’s revising a manuscript describing an unconformity in the sedimentary layers of Mount Sharp, within the Gale crater, a record of the alternating wet-dry cycles on the planet.
From Science Magazine ● Jun. 29, 2017
There are three types of unconformities, nonconformity, disconformity, and angular unconformity.
From Textbooks ● Jan. 1, 2017
An unconformity thus records movements of the crust and a consequent break in the deposition of the strata.
From The Elements of Geology by William Harmon Norton
Disconformities are unconformities that occur between parallel layers of strata indicating either a period of no deposition or erosion.
From Textbooks ● Jan. 1, 2017
There are three types of unconformities, nonconformity, disconformity, and angular unconformity.
From Textbooks ● Jan. 1, 2017
Gaps in the geological record are represented by various types of unconformities.
From Textbooks ● Jan. 1, 2015
Recognizing unconformities is important for understanding time relationships in sedimentary sequences.
From Textbooks ● Jan. 1, 2015
To do this, however, the conditions of sedimentation, the initial irregularities of the beds, the structural conditions, including unconformities, and other factors must be studied.
From The Economic Aspect of Geology by C. K. (Charles Kenneth) Leith
