Sentence examples for sequences of strata from inspiring English sources

In regions where the rocks have been strongly deformed through folding or faulting, the original attitudes of strata may be greatly altered, and sequences of strata that were once essentially horizontal may now be steeply inclined or overturned.

The ages of different sequences of strata, for example, can be compared with each other in this manner, and their relative ages with respect to faults, igneous intrusions, and other features that exhibit crosscutting relationships can be established.

Water flow through the gorge further eroded the rock, exposing a delineated sequence of strata from which evolutionary events could be traced.

The term was originally used by Charles Lyell in 1852 when he referred to the absence of a particular fossil species in a sequence of strata.

Tectonically undisturbed sedimentary rocks deposited in a quiescent shallow marine environment often include a sequence of strata that may present significant lithological variety at the scale of an engineering structure.

The geologic time scale is based principally on the relative ages of sequences of sedimentary strata.

Sequences of successive strata and their corresponding enclosed faunas have been matched together to form a composite section detailing the history of the Earth, especially from the inception of the Cambrian Period, which began about 540 million years ago.

Having said that, the existing sequence models also have a lot in common, with the main difference being in the style of conceptual packaging of the same succession of strata (i.e., where to pick the sequence boundaries).

First is the "principle of superposition," which states that in a sequence of rock strata the oldest rocks are on the bottom.

The Donau Glacial is correlated with the Thurnian sequence of marine strata of Great Britain and the Eburon Glacial Stage of northern Europe.

Early subdivision of the Triassic was based primarily on the extensive and highly fossiliferous Alpine (western Tethyan) sequence of marine strata exposed in Austria, Italy, Germany, and Switzerland.