lämpöviirgeihin
Lämpöviirgeihin, also known as thermal streaks or heat streaks, are a phenomenon observed in certain geological formations, particularly volcanic rocks and some sedimentary rocks. They manifest as distinct, linear or curvilinear bands of discoloration within the rock matrix. These bands typically differ in color from the surrounding rock, often appearing darker or lighter, and can be subtle or quite pronounced.
The formation of lämpöviirgeihin is generally attributed to processes occurring at elevated temperatures. In volcanic contexts,
In some sedimentary rocks, lämpöviirgeihin might form through similar high-temperature events, such as proximity to igneous