Question: Is Disconformity relative or absolute?

What is a Disconformity in geology?

Disconformity: exists where the layers above and below an erosional boundary have the same orientation. Nonconformity: develops where sediments are deposited on top of an eroded surface of igneous or metamorphic rocks.

How do you measure Disconformity?

If there is a significant gap in geologic time between the two layers - for example, if the layer beneath is Cambrian in age and the layer above is Devonian in age - then it can be inferred that the contact between the layers is a disconformity.

What are three different types of intrusions?

Three common types of intrusion are sills, dykes, and batholiths (see image below).

What is the largest type of Pluton?

The Wa- thaman batholith is thus the largest known Precambrian pluton and is comparable in size to Mesozoic batholiths in the western Cordilleras of North and South America.

What is a example of unconformity?

For example, the contact between a 400‐million‐year‐old sandstone that was deposited by a rising sea on a weathered bedrock surface that is 600 million years old is an unconformity that represents a time hiatus of 200 million years.

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