Metamorphic T/P ratios and corresponding geothermal gradients for high-grade metamorphic rocks from both Proto-Tethys and Paleo-Tethys tectonic domains shows an increasing trend with age.

Eventually, the high ... in the rock cycle. They're the new rock on the block, ready to start fresh. Basalt lava flow in Hawaii, a perfect example of an extrusive igneous rock. Metamorphic rocks ...

When deeply buried in subduction zones, rocks undergo mineral transformations that record the increase of pressure and temperature. The fact that high-pressure metamorphic parageneses are found at ...