The branch of geophysical science that
deals with forces and processes in the interior of the Earth. It
typically involves the macroscopic analysis of forces associated
with a process and may include mathematical or numerical
modeling. Geodynamics is a quantitative science closely
related to geophysics, tectonics, and structural geology with
problems including assessment of the forces associated with
mantle convection, plate tectonics, heat flow, mountain
building, erosion, volcanism, fluid flow, and other phenomena.
The aim of many studies in geodynamics is to assess the
relationships between different processes, such as to determine
the influence of mantle convection on plate movements,
or to assess plate motions in one area with
deformation in another. It is contrasted with many other
types of geological studies, which tend to be either static,
analyzing only present and past states, or kinematic, analyzing
the history of motions without a quantitative assessment
of the forces involved.
See also GEOPHYSICS; PLATE TECTONICS.
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