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Unconformity
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What is a gap in an area's geologic history called?
A gap in an area's geologic history is called an unconformity. This represents a period of time where rock layers are missing due to erosion or non-deposition. Unconformities can help geologists understand the timing and duration of geological events.
What causes a gap in the geologic record?
Erosion of already deposited layers or a time span of non-deposition.
What do unconformities show do?
unconformities show a gap in the geologic records
What do the relative geologic time and absolute geologic time combine to form?
The geologic time scale.
What are two ways that a rock layer can cause a gap in geologic record?
A rock layer can cause a gap in the geologic record through erosion, where the layer is removed by natural processes. Alternatively, non-deposition can also create a gap when no new sediments are deposited, leaving a break in the rock layers.
Diffrenciate geologic time with geologic column?
Geologic column is an ordered arrangement of rock layers that is based on the relative age of the rocks. Geologic time is the time IN the geologic column.
Which series of words describes length of geologic time from longest to shortest?
eon>era>period
What title best describes the current geologic age?
The current geologic age is referred to as the Holocene epoch.
What is an unconfomity?
a gap in the geologic record that shows where rock layers have been lost do to erosion
What is an era in geologic time?
an era is a very long span of geologic time
Which feature causes a gap in the geologic record?
An unconformity causes a gap in the geologic record, representing a period of erosion or non-deposition that results in missing layers of rock. This gap can be caused by tectonic forces, sea level changes, or other geological events that interrupt the deposition or preserve of sedimentary layers.
What does geologic time have to do with eras?
Eras are subdivisions of larger units of geologic time called eons.
