These mountain ranges would be the Sierra Madre Occidental on the west and the Sierra Madre Oriental on the SE. The Sierra Madre Occidental at least has had historically some rich silver deposits. Both mountain ranges are part of the Western Cordillera which stretches from Alaska to the southern tip of South America.
Answer:
that would be semi core if I'm correct
Answer:
most life is found in epipelagic zone
Answer:
b. Fe, Mg, and Ca
Explanation:
In an ultramafic magma, there is concentration of Fe, Mg and Ca in the melt. An ultramafic magma is one with less amount of silica content. Ultramafic magma are usually rich in iron bearing minerals, magnesium and calcium. These minerals are usually the first to crystallize out in a melt when rocks are heated.
Answer:
Ferrous (Fe²⁺) and magnesium cation (Mg²⁺).
Explanation:
The olivine mineral is a type of orthosilicate, which is generally yellow to yellow-green in color. It is the main component of the upper mantle of the Earth, which can be found in igneous and metamorphic rocks.
The olivine mineral exists in the form of Mg₂SiO₄, Fe₂SiO₄, or (Mg,Fe)₂SiO₄.
<u>This silicate consists of two divalent cations, ferrous (Fe²⁺) and magnesium cation (Mg²⁺).</u>
