Metamorphic rock is formed when existing rock is transformed under high heat and pressure, which generally destroys any fossils that were in the rock before it was metamorphosed. For example, marble ...

A striped rock that looks out of place in its surroundings on the slopes of the inner wall of Jezero crater has scientists excited about what it may reveal about the Red Planet's history.

Chalk is a sedimentary rock. Metamorphic rocks are formed when another rock is under heat and pressure. Marble is a metamorphic rock, it is highly decorative and used for statues. Igneous rocks ...

My current and past research includes general contributions to 1) understanding deep crustal processes through the study of high-pressure rock exposures and lower crustal xenoliths, 2) metamorphic & ...