Salary for Real Estate Brokers. Real estate brokers sell real estate for other individuals. They do this for a fee, also called a commission. Real estate brokers search other similar properties to compare prices and ensure the property is being listed at a competitive price. Brokers also monitor the fulfillment of the terms of the agreement once it is made and negotiate between buyers and sellers.
Oceanic crust is predominantly made of the rock basalt. Basalt is an extrusive igneous rock (meaning it forms once lava reaches the earth's surface... or ocean floor... and cools down). It is a dark colored, grey to black rock that has a lot of iron and magnesium in it, but not a lot of silicon.
Accordingly, the crust is divided into two types; the continental crust and the oceanic crust. Oceanic Crust. The oceanic crust is that part of the Earthâs crust that covers the ocean basins. It consists of dark-colored rocks made up of basalt.This rock is made up of silicon, oxygen, and magnesium.The density of the oceanic crust is about 3.0 g/cm3.The continental crust has a lower density. This difference in the average densities allows many natural phenomenon to occur on and below the surface of the Earth. The oceanic crust scarcely floats on the mantle.t consists of dark-colored rocks made up of basalt. This rock is made up of silicon, oxygen, and magnesium. The density of the oceanic crust is about 3.0 g/cm3. The continental crust has a lower density.