'Horizontality' diaporamas de présentation

Earth History - Table of Contents

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Archaeology

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Types of unconformities

Types of unconformities. 106 Geo. Disconformity A disconformity is an unconformity between parallel layers of sedimentary rocks.

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Stratigraphy

Stratigraphy. The study of stratified rock in time and space. Nicolaus Steno (1638-1676). Principle of Superposition. In a sequence of strata, any stratum is younger than the sequence of strata on which it rests, and is older than the strata that rest upon it.

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