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A break in the rock record deposition of sediment has been interrupted is referred to as a?
Oliverjc79
A gap in the geologic record of rock formations is called an uncomformity.
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∙ 14y ago
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What is the difference between conformable and unconformable strata?
When layers of rocks are deposited in a continuous succession through time without any significant break in deposition they are conformable. But if deposition is interrupted or there is an episode of erosion between deposition then the boundary between the older and younger rocks is unconformable, in essence part of the geologic record is missing.
What are two ways that a rock layer can cause a gap in geologic record?
When rock layers are eroded or when a sediment is not deposited for a long period of time.
What is the written record of earthquake called?
If you are referring to the record printed on a chart by a seismograph, it is called a seismogram. If you are referring to a hand-written record of the events of an earthquake, this might be referred to as a journal.
Explain how geologic time is recorded in rock layers?
The strata of sedimentary rock can contain fossils which are peculiar to a specific geologic time. These fossils are referred to as index fossils. Some rock layers also record events such as meteor strikes and periods of volcanism through the deposition of sediments. Igneous rocks in particular contain certain mineral crystals which can be used to provide a radiometric fingerprint of their period of formation.
How is geologic time recorded in rock layers?
The strata of sedimentary rock can contain fossils which are peculiar to a specific geologic time. These fossils are referred to as index fossils. Some rock layers also record events such as meteor strikes and periods of volcanism through the deposition of sediments. Igneous rocks in particular contain certain mineral crystals which can be used to provide a radiometric fingerprint of their period of formation.
What is the difference between angular unconformity disconformity and nonconformity?
Angular unconformity is when rocks are deformed and then eroded and then new sediment is deposited on top. Disconformity is when igneous or metamorphic rocks are eroded and then sediment is deposited on top. Nonconformity is when either there is no deposition for some time and then deposition resumes or horizontal layers are eroded (but not deformed in any way) and then deposition resumes. These create gaps in the rock record.
What is the difference between conformable and unconformable strata?
When layers of rocks are deposited in a continuous succession through time without any significant break in deposition they are conformable. But if deposition is interrupted or there is an episode of erosion between deposition then the boundary between the older and younger rocks is unconformable, in essence part of the geologic record is missing.
Is it legal to record a deposition?
A deposition is usually recorded.
Can you amend a deposition?
No, you cannot amend a deposition. A deposition is a record of a person's answers to questions asked by an attorney under oath. Amending would render in incomplete.
What is an IPv6 DNS host record is referred to as?
The IPv6 host record is referred to as a AAAA record.
What does uncomformity mean?
An unconformity is a gap in time of the rock record. In a stratigraphic column this is evidence that erosion has removed a portion of the natural deposition of sediment in an area. In a disconformity erosion takes place between sedimentary rocks that have not been otherwise modified. In an angular unconformity, previous bedding has been tilted from its original deposition and undergone erosion, and is topped by new sediment that is deposited horizontally on top of this tipped surface. In a nonconformity, huge amounts of erosion have exposed igneous or metamorphic basement rock and there is an igneous or metamorphic rock contacting sedimentary rock.
What is caused by deposition?
In North America, a deposition is the out-of-court oral testimony of a witness that is reduced to writing for later use in court or for discovery purposes.
What causes a gap in the geologic record?
Erosion of already deposited layers or a time span of non-deposition.
What is am entry of a database?
An entry in a database is referred to as a "record."
What is a databse record?
Database is a collection of interrelated data. One entry in a database is referred as one record.
What is a record of a voyage?
By some people, the phrase "captain's log" is often referred to as the record of a sea voyage.
Why doesn't one region on earth contain a record of all geologic time?
There will only be a record of a given part of geologic time if sediment was laid down at that time. For any given time period, there are regions in which sediment was not laid down. Addtionally, even where the sediment was laid down, some may been eroded and the rock record destroyed. Additionally, in a region where rock from one time period are expossed, rocks from older periods, if they exist, will bur buried, often too deep to be accessible.
