on April 2, 2022
Where can you find scoria?
Regional SpecificsScoria is common in areas of recent volcanism, such as the Canary Islands and the Italian volcanoes. It is relatively low density due to its vesicles, bu it is not as light as pumice. Also differs from pumice in that it has larger vesicles with thicker walls. Where does scoria come from? Scoria forms when
on April 2, 2022
How does a sedimentary rock become stratified?
Regional SpecificsStratification in sedimentary rocks may result from changes in texture or composition during deposition; it also may result from pauses in deposition that allow the older deposits to undergo changes before additional sediments cover them. How does a sedimentary rock become stratified Brainly? Answer Expert Verified Stratified rocks are nothing but sedimentary rocks. Strata means
on April 1, 2022
What are the three horizontal zones of the ocean?
Regional SpecificsThe ocean is divided into horizontal zones based on the distance from shore and the depth of water beneath: the intertidal, neritic, and oceanic. What are the horizontal zones? I. Horizontal zones (those extending from land out to sea). The habitats are alternately submerged under salt water and waterlogged for hours and then exposed to
on April 1, 2022
Which feldspar has exsolution lamellae?
Regional SpecificsK-feldsparpotassium-rich alkali feldspar (near K-feldspar, KAlSi3O8, in composition) includes exsolved lamellae or irregular intergrowths of sodic alkali feldspar (near albite, NaAlSi3O8, in composition). Does plagioclase feldspar have exsolution lamellae? Plagioclase feldspars The play of colors visible in some feldspar of labradorite composition is due to very fine-grained exsolution lamellae known as Bøggild intergrowth. The specific
on April 1, 2022
What are the main evidences of the layered nature of Earth’s structure?
Regional SpecificsThe main evidences of the layered structure of the earth’s interior are the changes in velocity and travel paths of various seismic waves. What evidence supports the layers of the earth? Evidence from earthquakes, volcanoes and igneous rocks (which sometimes contain fragments of what is thought to be upper mantle material) suggest that the Earth
on April 1, 2022
What are the three types of magma?
Regional SpecificsThere are three basic types of magma: basaltic, andesitic, and rhyolitic, each of which has a different mineral composition. All types of magma have a significant percentage of silicon dioxide. Basaltic magma is high in iron, magnesium, and calcium but low in potassium and sodium. What are 3 types of magma and what is their