What is burial metamorphesis?

Burial metamorphism occurs when sedimentary rocks are subjected to increased pressure and temperature due to the accumulation of overlying sediments. This process typically takes place in sedimentary basins, where the weight of the overburden leads to physical and chemical changes in the rocks without the influence of tectonic forces or high temperatures associated with magma. The resulting metamorphic rocks tend to exhibit a more compact structure and may show changes in mineral composition. Common examples include the transformation of shale into slate or mudstone into phyllite.