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How do the ages of the oldest sediments compare to the ages of the oldest continental rocks?
The oldest sediments are generally younger than the oldest continental rocks. Sediments are continuously being deposited on the Earth's surface, while continental rocks have undergone processes of solidification and deformation over billions of years. This means that the oldest continental rocks are usually much older than the oldest sediments.
What rock makes up the continental crust?
The continental crust is made up of igneous, sedimentary, and metamorphic rocks. These rocks form the continents and the continental shelves, areas of seabed close to the shore.
What type of rocks are found in a continental shelf?
The rocks found in a continental shelf are often sedimentary rocks, such as sandstone, shale, and limestone. These rocks are formed from the accumulation of sediments on the ocean floor over long periods of time. Additionally, some continental shelves may also have igneous rocks brought up from volcanic activity.
How are Ocean floor rocks are different from continental rocks?
Oceanic crust is composed primarily of the dense volcanic rock basalt. Continental crust is composed primarily of the intrusive igneous rock granite, less dense than basalt.
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 types of rocks are starting points for continental shields?
What type of rocks are the starting points for continental shields
Are continental rocks or oceanic rocks older?
Continental Rocks are older
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.
Where does much of your history of Precambrian rocks come from?
Ores mined from shields...
How are continental formed?
rocks and snow
Some continents contain large core areas of Precambrian rocks called?
cratons. These cratons are stable, ancient regions of the Earth's crust that hold some of the oldest rocks on the planet. They are often found in the interiors of continents like in Africa, Australia, and North America.
How do the ages of the oldest sediments compare to the ages of the oldest continental rocks?
The oldest sediments are generally younger than the oldest continental rocks. Sediments are continuously being deposited on the Earth's surface, while continental rocks have undergone processes of solidification and deformation over billions of years. This means that the oldest continental rocks are usually much older than the oldest sediments.
What rock makes up the continental crust?
The continental crust is made up of igneous, sedimentary, and metamorphic rocks. These rocks form the continents and the continental shelves, areas of seabed close to the shore.
What type of rocks are found in a continental shelf?
The rocks found in a continental shelf are often sedimentary rocks, such as sandstone, shale, and limestone. These rocks are formed from the accumulation of sediments on the ocean floor over long periods of time. Additionally, some continental shelves may also have igneous rocks brought up from volcanic activity.
Is continental crust made of rocks such as granite?
Yes, continental crust is primarily composed of granitic rocks such as granite. This type of rock is less dense than the basaltic rocks found in oceanic crust, which contributes to the higher elevation of continental landmasses.
Which rocks make up the continental crust?
Granite
Are continental plates made of igneous rocks?
Sometimes
