Answer:
Unconformities Are Gaps in the Geological Record
Gaps in the geological record, like those discovered in 2005, are called unconformities because they do not conform to typical geological expectations.Explanation:
Answer:
A type of democracy in which people elect their representatives directly.
Ancient Athenians used this type of democracy to elect their leaders when they gather at an assembly.
Because circumpolar constellations never rise or set, they provide reliable reference points for astronavigation. Knowing the circumpolar constellations in each hemisphere allows navigators to find their way using only the stars.
A convergent-plate boundary to the west of North America caused oceanic crust to be subducted, causing collisions with microcontinents and the partial melting of oceanic crust to create the Sierran volcanic arc.
<h3>Give an explanation of the plate tectonic conditions that led to the formation of the Sevier thrust belt and the Sierran arc. During the Laramide orogeny, what happened?</h3>
A convergent-plate boundary to the west of North America caused oceanic crust to be subducted, which led to collisions with microcontinents and the partial melting of oceanic crust that produced the Sierran volcanic arc. Compression was responsible for the arc's folds and thrust faults. As opposed to earlier orogenies that just established the more superficial faults of the fold-thrust belts behind the arc, faulting associated with the Laramide orogeny was responsible for the creation of the Rocky Mountains. The Sevier-style orogeny may have changed as a result of the subducting slab's shallowing dip.
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