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A relative age of the rocks of the earths crust can be determined by using the laws of?
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∙ 12y ago
superposition
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∙ 12y ago
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What is the earths under crust surrounded by?
Earths under crust surrounded by Upper Mantle (35-60 km) .The mantle is composed of sillicate rocks that are rich in iron and magnesium relative to the overlying crust.
What does rocks in earths mantle contain a higher percentage of what than rocks in earths crust?
iron and magnesium
Why is there no sedimentary rock deep in the earths crust?
Sedimentary rocks get transformed into metamorphic and eventually igneous rocks in deep earth's crust.
How does shearing affect rock in Earth's crust?
Shearing affects the rocks in the earth's crust when the rocks are being pulled apart in opposite horizontal directions
Which layer of earth are made mostly of rocks?
Hard rocks form the outer layer of the Earth (the lithosphere) which includes the crust and upper mantle. Rocks of the remaining mantle are in a plastic state, able to move, bend and deform without breaking.
How is earths geolgic history determined?
it is determined by studying the relative and absolute ages of rocks and fossils
What is the earths under crust surrounded by?
Earths under crust surrounded by Upper Mantle (35-60 km) .The mantle is composed of sillicate rocks that are rich in iron and magnesium relative to the overlying crust.
What are the rocks that make up the earths crust?
the crust and the core
What is the earhs crust made of?
the earths crust is made out of rocks
What does rocks in earths mantle contain a higher percentage of what than rocks in earths crust?
iron and magnesium
What materials are the earths crust made of?
it is made of rocks
Where do metomorphic rocks form?
metamorphic rocks are formed in earths crust not on the surface
What is the difference between relative ages of and relative position of rocks?
Age is how old the rock is relative to other rocks, position is where the rock is in relation to other rocks. Tectonic motion and other forces can easily turn a portion of the Earths crust upside down resulting in older rock lying above younger layers.
What are two rocks that can be found in the earths crust?
Basalt and limestone.
What exists on earths crust?
crief boy quez
What makes close to 95 percent of the rocks of earths crust?
Silicates make up close to 95 percent of the rocks in the Earth's crust
Basic material of the Earth's crust?
The basic materials of the earths crust are; silicate rocks, primary granite, igneous, metamorphic, and sedimentary rocks.
