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What is the type of rock that comprises the bulk of the continents?
Wiki User
∙ 13y ago
The continents are made up of the least dense minerals and elements, essentially the continents float in a 'sea' of denser rocks, which are involved in a slow process of convection within the Earth's Mantle. As this convection proceeds the continental rafts get moved across the face of the planet. The cores of continents (where they are exposed at the surface by erosion and uplift are composed of Metamorphic rocks with a chemical composition similar to that of Granite - they frequently show a metamorphic fabric and the term used to describe them is 'Banded Gneisses'
Wiki User
∙ 16y ago
Wiki User
∙ 9y agoThe answer is Granite it is a Igneous rock which means at one time is was magma.
-Bojiggle
Wiki User
∙ 12y agoThe continnetal crust is made of the rock called granite.
Wiki User
∙ 13y agoIgneous rocks, especially, granitic igneous rock.
Wiki User
∙ 13y agoGRANITE is the answer.
Wiki User
∙ 11y agogranite
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∙ 13y agosedimentary
Wiki User
∙ 12y agosedimentry
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Which type of rock is most common at the Earth's surface?
Sedimentary rock, specifically shale, is the most common rock type exposed on the land surfaces of the Earth. The most common crustal rock, by far, is basalt, an igneous rock, forming the bulk of the seafloor.
Which type of crust typically comprises the continental margin?
Continental crust.
What type of rock is river rock is it sedimentary metaphoric or igneious?
River rock can be composed of any rock type, or any combination of rock types.
What type of rock is a pumice rock?
an igneous rock.
What is the main rock that forms the earth's crust out of the three types of rocks?
If this is a test question, beware! The most common answer served up by public education would be 'igneous rock'. However, the bulk of crustal rock is metamorophic. The reason for this is fairly simple: rock metamorphoses at higher temperature and pressure, both of which increase significantly with depth from the surface. Since oceanic crustal rock is on average 5 miles in depth, and continental crust is on average 30 miles in depth, the bulk of the crustal rock is exposed to great pressures and temperatures. When it is written that oceanic crust is mainly basalt, an igneous rock, and continental crust is mainly granite, also an igneous rock, it is mainly in reference to their chemical composition, not their classification by type. Warning: be prepared to back up your 'metamorphic' answer.
What type of tissue comprises the bulk of the myocardim?
nyhila mckenize
What type of rock igneous metamorphic or sedimentary makes up most of the continents?
The type of rock would be igneous.
What type of rock developed the first proto-continents?
Igneous rock was the first rock to cool on the surface.
What is the most common type of solidified lava?
Basalt, the extrusive igneous rock that comprises most of the oceanic crust, is the most common type of solidified lava.
What rock type is formed due to lighter and less dense maga rises and cools as it reaches the earth's surface?
Granite. That's the type of rock that makes the basis for all the continents.
Which type of rock is most common at the Earth's surface?
Sedimentary rock, specifically shale, is the most common rock type exposed on the land surfaces of the Earth. The most common crustal rock, by far, is basalt, an igneous rock, forming the bulk of the seafloor.
What is the main type of rock that Continental plates are up made of?
Granodiorite is the typical bulk chemical composition of continental crust, but the actual rock itself will vary from this depending where you are and what sort of history the continent has gone through. All continents are different in this way, but most typicall have a basement (main bit under the surface) that is metamorphic and archean in age and strongly deformed. This is then generally overlain with metamorphosed or lithified sediments (lithified means turned to rock). There can also be a number of intrusions within the crust, plutonic and planar. All in all this makes a pretty complex picture, but in short the bulk chemical composition of the crust can be approximated at a Granodiorite. Hope this helps.
What is the main rock type that that continental plates are made up of?
Granodiorite is the typical bulk chemical composition of continental crust, but the actual rock itself will vary from this depending where you are and what sort of history the continent has gone through. All continents are different in this way, but most typicall have a basement (main bit under the surface) that is metamorphic and archean in age and strongly deformed. This is then generally overlain with metamorphosed or lithified sediments (lithified means turned to rock). There can also be a number of intrusions within the crust, plutonic and planar. All in all this makes a pretty complex picture, but in short the bulk chemical composition of the crust can be approximated at a Granodiorite. Hope this helps.
Which type of mountain is formed by colliding continents?
The type of mountain that is formed by colliding continents is the upward mountain.
What is bulk resistivity?
Bulk resistance is the ohmic resistance of the semiconductor material. The natural resistance of a "P" type or "N" type semiconductor material.
What fiber type comprises the greatest proportion of a tendon?
collagen fibers
Which type of crust typically comprises the continental margin?
Continental crust.
