Which term in the list is associated with rock layers?

Which term in the list is associated with rock layers?

strata
Rock layers are also called strata (the plural form of the Latin word stratum), and stratigraphy is the science of strata.

What do rock layers represent?

An outcrop consisting of several horizontal sedimentary rock layers represent a vertical time-series of geologic events. The textures of each sedimentary layer tells us the environment that was present at that location when the layer formed. Geologists use these textures to define the rock layer as a facies.

What is a disturbance in rock?

In geology, a disturbance is a linear zone of disturbed rock strata stretching for many miles across country which comprises a combination of folding and faulting.

What are the names of the rock layers?

Igneous Rocks.

Sedimentary Rocks.

Metamorphic Rocks.

Why is it important to correlate the different rock layers?

We correlate rocks from one place to another to get a more complete record of Earth’s history over time. These 3 columns represent rock layers from 3 separate areas. Some columns may be missing layers due to erosion. No single column represents a complete record.

Why do geologists correlate rock layers?

What can happen when rock layers have been disturbed by faults or intrusions?

When rock layers have been disturbed by faults (a break or crack in Earth’s crust) or intrusions (a mass of igneous rock that forms when magma is injected into rock and then cools and solidifies), determining relative age may be difficult. In such cases, scientists may apply the Law of Crosscutting Relationships.

What are disturbances in ecology?

Ecologists define “disturbance” as “any relatively discrete event in time that disrupts ecosystem, community, or population structure, and changes resources, substrate availability, or physical environment.”