Arcata is also the location of the Arcata Field Office of the Federal Bureau of Land Management, which is responsible for the administration of natural resources, lands and mineral programs, including the Headwaters Forest, on approximately 200,000 acres of public land in Northwestern California.
Compton's, 1995. They divide the mass of the Earth by the volume, which gives the average density of the material in the earth as 3.2 ounces per cubic inch (5.5 g/cm 3).. 5.5 g/cm 3. Orbits Voyage Through The Solar System. Phoenix, AZ: Software Marketing, 1989. Mean Density: (water = 1) 5.52.. 5.52 g/cm 3. Morse, Joseph Laffan.
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.The oceanic crust undergoes a peculiar phenomenon.he 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.