What type of rock is serpentine found in?
Regional Specificsmetamorphic rockmetamorphic rock that forms at tectonic plate boundaries deep within the Earth. What kind of rock is serpentine? Serpentine is considered by geoscientists to be the metamorphosed remains of magnesium-rich igneous rocks, most commonly the rock peridotite, from the earth’s mantle. The mantle is a thick layer of rock just below the earth’s crust.
What are tectonic plates GCSE?
Regional SpecificsTectonic plates are sections of the Earth’s solid crust that “float” on top of the mantle. The mantle contains hot molten rock (magma) heated by energy from the earth’s core. The earth’s crust is made up of seven main tectonic plates and numerous smaller plates. What is a tectonic plate Bitesize? Tectonic plates are pieces
What are two radioactive isotopes that are useful for dating rocks that are older than 10 million years?
Regional SpecificsScientists usually use the potassium-argon method to date rocks that are older than about 1 million years. Uranium-238 is also used for radiometric dating. What radioactive isotope is best used for dating rocks that are millions of years old? isotope carbon-14 The best-known radiometric dating method involves the isotope carbon-14, with a half life of
How did the Llano Uplift form?
Regional SpecificsCreation of the Area When the surrounding area of younger sedimentary rocks eroded away, it left behind granite at the heart of the uplift. Along with the rest of the Texas Hill Country, the Llano Uplift also rose in elevation during the Cenozoic when the Balcones Fault shifted, lifting the area to the west. What
What were the impacts of the Montserrat eruption?
Regional SpecificsWhat is the environmental impact? Forests and beautiful scenery were destroyed, and the giant beaches that attract many tourists were ruined. Because of the lava erupting from the volcano, over half the island had to be evacuated to a safer part. It caused fires and mudflows, resulting in injuries or even deaths. What were the
Is glass a mineral?
Regional SpecificsGlass – can be naturally formed (volcanic glass called obsidian), is a solid, its chemical composition, however, is not always the same, and it does not have a crystalline structure. Thus, glass is not a mineral. Is glass made of minerals? It is made from silica sand, soda ash and limestone and/or dolomite. The oxides