The top earning professionals in the marine biology field exceeded $95,430 annually in 2012, and those earning in the bottom 10 percent of the profession averaged less than $37,100 in the same year. Top earnings are recorded for those working for the federal government.
metamorphism. 1. the process of change in the form and structure of rocks by the agency of heat, water, and pressure. 2. the change of particular types of rock, as limestone into marble. Also called epigenesis.See also change. â metamorphic, adj.etamorphism-change in the structure of rock by natural agencies such as pressure or heat or introduction of new chemical substances.
There are four types of metamorphism. Contact metamorphism is a result of heat generated from a nearby magma source. Regional metamorphism consists of change through intense heat and pressure. Hydrothermal metamorphism is a chemical change that occurs when hot fluids circulate through out the rock.etamorphism occurs under the influence of extreme heat, pressure, and/or chemical fluids. A rock undergoing metamorphism changes the texture and mineral composition of the rock but never leaves solid form.