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.
The oceanic crust is 5 km (3 mi) to 10 km (6 mi) thick and is composed primarily of basalt, diabase, and gabbro. The continental crust is typically from 30 km (20 mi) to 50 km (30 mi) thick, and is mostly composed of slightly less dense rocks than those of the oceanic crust.Some of these less dense rocks, such as granite, are common in the continental crust but rare to absent in the oceanic crust.he Earth's oceanic crust is aproximately 0-6 miles (0-10 km) thick while the continental crust is apx. 0-31 miles (0-50 km) thick. I wrote the rages because the crust's thickness varies depending on where you are.