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In undeformed strata where are the rocks typically the densest?

In undeformed strata, the rocks are typically the densest at the bottom of the sequence. This is due to the process of gravitational settling, where denser rocks sink and accumulate at the bottom over time, creating a denser layering pattern in the strata.


Where can strata can be found sedimentary rock or igneous rock?

Strata can be found in sedimentary rocks, which form in layers over time as sediments accumulate and compact. Igneous rocks, which form from molten magma cooling and solidifying, do not typically have distinct layers or strata.


How can older rocks be found on top of younger rocks in a cross-section?

This can happen due to the process of tectonic activity, where older rocks are pushed up and over younger rocks during mountain-building events, known as thrust faults. As a result, the relative positions of rocks are altered, with older rocks ending up on top of younger rocks in the Earth's crust.


True or false continental crust is made of rocks such as granite?

True. Continental crust is primarily composed of lighter rocks such as granite, which are less dense than the basaltic rocks found in oceanic crust. This is why continental crust is thicker and less dense than oceanic crust.


What is the geologic law that scientists use to date the crust by studying the layers of rocks called?

The geologic law that scientists use to date the crust by studying the layers of rocks is the Law of Superposition. This law states that in a sequence of undisturbed rock layers, the oldest rock layer will be at the bottom and the youngest will be at the top. By studying the relative positions of these rock layers, scientists can determine the relative ages of the rocks.

Related Questions

In undeformed strata where are the rocks typically the densest?

In undeformed strata, the rocks are typically the densest at the bottom of the sequence. This is due to the process of gravitational settling, where denser rocks sink and accumulate at the bottom over time, creating a denser layering pattern in the strata.


What provides geologist with evidence of earths past including geologic events and life forms?

The rocks of Earth's crust, especially sedimentary rocks


Is the continental crust made of igneous rock?

The continental crust is primarily composed of igneous, sedimentary, and metamorphic rocks. Igneous rocks do make up a significant portion of the continental crust, especially in the form of granite and basalt.


What is the position in which fossils and rocks are placed in strata?

sideways


What are the layers found in sedementary rocks called?

They're called strata. Strata less than 1cm thick are Laminae.


Where can strata can be found sedimentary rock or igneous rock?

Strata can be found in sedimentary rocks, which form in layers over time as sediments accumulate and compact. Igneous rocks, which form from molten magma cooling and solidifying, do not typically have distinct layers or strata.


Is continental crust is made of rocks such as granite?

There are many different ryes of rocks in continental crust. Granite is one of the rocks that makes up continental crust.


What law suggests that older rock strata are at the bottom and younger rock strata are at the top?

The law that suggests that older rock strata are at the bottom and younger rock strata are at the top is the law of superposition. This principle states that in an undisturbed sequence of sedimentary rocks, the oldest rocks will be at the bottom and the youngest at the top due to the natural layering process over time.


How can older rocks be found on top of younger rocks in a cross-section?

This can happen due to the process of tectonic activity, where older rocks are pushed up and over younger rocks during mountain-building events, known as thrust faults. As a result, the relative positions of rocks are altered, with older rocks ending up on top of younger rocks in the Earth's crust.


When rock strata are unable to bend they fracture and cause what?

When rock strata are unable to bend, they fracture and cause earthquakes. This fracturing occurs along faults, which are planes of weakness in the Earth's crust where rocks have broken and moved relative to each other. The sudden release of stress along these faults produces seismic waves that we perceive as earthquakes.


What exists on earths crust?

crief boy quez


What are the layers of sedimentary rocks called?

Strata (singular: stratum)