What type of feature is shown in this photograph of Siccar Point Scotland quizlet?

What type of feature is shown in this photograph of Siccar Point, Scotland? This photograph shows an upper unit with fragments and a lower unit with tilted layers.

Where is the oldest layer in this tilted sequence of sedimentary rocks?

Superposition. Sedimentary rocks are deposited one on top of another. Therefore, the youngest layers are found at the top, and the oldest layers are found at the bottom of the sequence.

Where is the oldest layer in this tilted sequence of sedimentary rocks quizlet?

A principle of law stating that within a sequence of undisturbed sedimentary rocks, that the oldest layers are on the bottom and the youngest are on the top.

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How would we use isotopic ages to infer the ages of the upper and lower unit in this diagram?

How would we use isotopic ages to infer the ages of the upper and lower unit in this diagram? The lower unit would be younger than an age on the crosscutting dike. The dike is younger than the lower unit but older than the upper unit. An age on the dike would not help us because it is an igneous rock.

What is the main geologic feature for which Siccar point in Scotland is famous?

Siccar Point is a rocky promontory in the county of Berwickshire on the east coast of Scotland. It is famous in the history of geology for Hutton’s Unconformity found in 1788, which James Hutton regarded as conclusive proof of his uniformitarian theory of geological development.

What factors are the most critical in determining whether a fossil is preserved?

what factors are the most critical in determining whether a fossil is preserved? whether the creature had hard parts and how fast it was buried.

Which is the oldest sedimentary rock layer?

Over time, the sediments pile up to form horizontal layers of sedimentary rocks. The bottom layer of rock forms first, which means it is oldest. Each layer above that is younger, and the top layer is youngest of all.

How old was the oldest rock layer?

Bedrock in Canada is 4.28 billion years old Bedrock along the northeast coast of Hudson Bay, Canada, has the oldest rock on Earth.

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Is the fault older or younger than rock layer A?

A fault is a break in Earth’s crust. A fault is always younger than the rock it cuts through. The surface where new rock layers meet a much older rock surface beneath them is called an unconformity. An unconformity is a gap in the geologic record.

Which kind of unconformity is probably the hardest to recognize among layered rocks?

Yes! Disconformities occur between parallel layers and are often recognized only by studying the fossils contained in them. No… disconformities occur between parallel layers and are often recognized only by studying the fossils contained in them, thus are usually the most difficult to recognize.

Which numbered feature in this figure is the oldest?

149 Cards in this Set

Front Back
11. Which numbered feature in this figure is the oldest METAMORPHIC ROCKS (4)
12. What were some of the earliest forms of life on Earth? MISCROSCOPIC CREATURES THAT BUILT MOUND-SHAPED STRUCTURES CALLED STROMATOLITES

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What does an unconformity represent?

An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous. An unconformity represents time during which no sediments were preserved in a region.

What is the youngest geologic feature?

The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts through. The fault cuts through all three sedimentary rock layers (A, B, and C) and also the intrusion (D). So the fault must be the youngest feature.

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What are the rock layers?

There are three kinds of rock: igneous, sedimentary, and metamorphic. Igneous rocks form when molten rock (magma or lava) cools and solidifies. Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water.

Which rock layer is the youngest Brainly?

Answer: granite rock is the youngest based on continental crust rock layers.

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