Peridotite is the pieces of green olivine-rich mantle rock that are sometimes carried to the surface by basaltic lava.
The silicate minerals olivine and pyroxene make up the majority of the composition of peridotite, which is a dense, coarse-grained igneous rock.
Because the rock has less than 45% silica, peridotite is ultramafic. Because it contains significant amounts of the magnesium-rich mineral olivine, it has a high magnesium content (Mg2+). Peridotite originates in the Earth's mantle, either as crystals gathered from magmas that erupted in the mantle or as solid blocks and pieces.
Peridotites from these layered igneous complexes have a variety of compositions that reflect the relative amounts of pyroxenes, chromite, plagioclase, and amphibole.
The term "peridotite" derives from the mineral peridot, which is made up of light green olivine.
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Answer:
Formation. When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle and a solid crust
Explanation:
Answer:
C. Country will be wealthy and more educated leading to a stronger nation.
Explanation:
The abundance of natural resources and a highly literate population like Argentina will be of immense benefit in that the country will be wealthy and more educated leading to a stronger nation.
- Abundance of natural resources translate to wealth for a nation if properly managed.
- Since the population is highly educated, it will be easy to manage such wealth accrued from exploring the resource base.
- This in turn translates to a better educated and wealthy society.
Answer:
Ancient Egyptians relied on importing wood from Southwest Asia.
Explanation:
As Egypt is primarily a desert, it never really had enough wood for its needs, whereas it had iron, silver, and turquoise in abundance. This is why it had to import wood from other parts of the world, and the closest neighbor to get it from was Southwest Asia, countries like today's Iraq, Saudi Arabia, etc.
It would be an "estuary."
