0
What else can I help you with?
What is the thin part of the Earth's crust located under the ocean?
The thin part of the Earth's crust located under the ocean is called the oceanic crust. It is typically about 5 to 10 kilometers thick and is primarily composed of basaltic rocks, which are denser than the granitic rocks that make up the continental crust. The oceanic crust is formed at mid-ocean ridges through volcanic activity and is constantly being created and destroyed through tectonic processes.
What are the rocks that make up the earths crust?
the crust and the core
What are the rocks that make up this crust?
hard
What is two differences between the continental crust and oceanic crust?
The oceanic plate is thin, dense, and makes up the ocean floor. The continental plate is less-dense, thick, and make up the continents.
When does new crust form?
There is new rocks that build up they first start as lava and they build up and make new crust
Do rock make the crust of earth?
Yes, rocks make up the Earth's crust. The crust is composed of various types of rocks such as igneous, sedimentary, and metamorphic rocks. These rocks are constantly changing through the processes of plate tectonics, erosion, and volcanic activity.
Which rocks make up the continental crust?
Granite
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
What rocks are found in the continental crust?
Granite, gneiss, and sedimentary rocks like sandstone and limestone are commonly found in the continental crust. These rocks make up the bulk of the Earth's continents and are less dense than those found in the oceanic crust.
How does the volume of sedimentary rocks in Earth's crust compare with the volume of igneous rocks in the crust?
Sedimentary rocks make up about 75% of Earth's crust by volume, while igneous rocks make up about 15-20%. Sedimentary rocks form through processes like erosion, deposition, and cementation, while igneous rocks form from the cooling of molten magma.
Does aphanitic magma cool and consolidate without growth of mineral grains?
No. If a a rock is "aphanitic" it means that it is so fine-grained that it is impossible to tell which minerals are present in the matrix. The magma itself is not aphanitic. It is the rapid cooling of the magma that inhibits crystal growth and in turn make the rock's matrix aphanitic. Aphanitic rocks are commonly porphyric. Example: A diabase intrusion can be aphantic with white phenocrystals. Intrusions are often more aphanitic near the contact boundary of the rock that is being intruded. This is because the magma cools more rapidly near the cool, pre-existing rock and the crystals there have less time to grow than those in the middle of the intrusion.
What kind of rocks make up continental crust and oceanic crust?
Continental crust is mainly composed of granitic rocks such as granite and rhyolite, which are light in color and less dense. Oceanic crust is primarily composed of basaltic rocks, specifically basalt, which are dark in color and more dense than granitic rocks.
