GENERAL GEOLOGY

Detailed explanation-1: -Geophysicists explore the Earth’s core and mantle as well as the tectonic and seismic activity of the lithosphere.

Detailed explanation-2: -The lithosphere is the solid, outer part of Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below.

Detailed explanation-3: -The lithosphere or geosphere is a shell of rocky planet, most rigid outer layer and solid part of the earth which constitutes crust and brittle mantle. The two major types of lithosphere are continental lithosphere and oceanic lithosphere.

Detailed explanation-4: -The geosphere has four subcomponents: lithosphere (solid Earth), atmosphere (gaseous envelope), hydrosphere (liquid water), and cryosphere (frozen water) (fig. 2). Each of these subcomponents can be further subdivided into elements: for exam-ple, the oceans are an element of the hydro-sphere.