{"version":"1.0","type":"link","title":"Metamorphism - Newikis","description":"Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism usually takes place at temperatures in excess of 150 °C (300 °F), and often also at elevated pressure or in the presence of chemically active fluids, but the…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/9/96/Metamorphic_reaction_EN.svg/1280px-Metamorphic_reaction_EN.svg.png","thumbnail_width":1280,"thumbnail_height":887}