Bucks County is a county located in the Commonwealth of Pennsylvania. As of the 2010 census, the population was 625,249,[2] making it the fourth-most populous county in Pennsylvania and the 98th-most populous county in the United States.
Lithophile elements [edit]. Lithophile elements are those that remain on or close to the surface because they combine readily with oxygen, forming compounds that do not sink into the core.anganese, iron and molybdenum do form strong bonds with oxygen but in the free state (as they existed on the primitive earth when free oxygen did not exist) can mix so easily with iron that they do not concentrate in the siliceous crust as do true lithophile elements.
Definition of lithosphere. : the solid part of a celestial body (such as the earth); specifically : the outer part of the solid earth composed of rock essentially like that exposed at the surface, consisting of the crust and outermost layer of the mantle, and usually considered to be about 60 miles (100 kilometers) in thickness.