1- The terrestrial lithosphere is composed almost of 80% by igneous rocks, they are also known as magmatic rocks and are formed at high temperatures due to magma solidification, they come from the superior mantle and terrestrial coast. Its texture is super resistant with significant hardness to obtain minerals and other derived materials. They can be divided into extrusive and intrusive.
2- Through experiments, Bowen has defined a sequence of mineral formation when a magma begins to cool. There are two types of magmatic differentiation defined by Bowen, the continuous series and the discontinuous series. In the continuous series the internal structure of the magma is not altered and all minerals have iron and magnesium, they are formed: aluminum, silica and sodium and calcium.
In the discontinuous series decreasing the temperature reacts the previously formed mineral with the existing liquid, and thus a new mineral with different internal structure and composition is formed. They are formed: olivine, pyroxena, amphibole and biotite.
Answer:
the Alaska Range and the Brooks Range
Explanation:
Alaska is a federal state in the United States. It is actually the largest state of this country, and it is also the northernmost state. All of Alaska lies on very high latitude, thus it has very cold climate for much of the year.
Big portion of the landscape of Alaska is covered by two mountain ranges. These mountain ranges are the Alaska Range and the Brooks Range. Both ranges have a roughly west to east direction.
The Alaska range is located in the southern and southeastern part of Alaska. It alleviates immediately from the coastline. It separates this part of the country and the lowlands of the interior.
The Brooks Range is located between the central part of the state and the norther part of the state, being a natural boundary between the two parts. This range lifts high up between the lowlands in the interior, and the lowlands in the northern part of the state.
Answer:
<u>Use of Triangulation, and interaction of the three circles.</u>
Explanation:
- To determine the epicenter of the earthquakes the scientist study the patterns of the waves and use this method to find the exact location of the earthquakes.
- As the earthquake has P and S waves that are released with force the distance that these waves travel are calculated with the distance of the radio waves that is reflected from least three different locations, thus it's named as triangulation all three sides.<u>
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- <u>About three seismographs are used to locate these waves, along with the use of the GIS technology prediction of the faults and the future occurrence of earthquakes of done.</u>
