Rock microstructure intrusions are a result of uninterrupted slow cooling. When a rock cools too quickly the liquid freezes into a solid glass, or crystalline groundmass. Often vapor loss from a magma chamber will cause a porphyritic texture. "Embayments" or 'corroded' margins to phenocrysts infer that they were being resorbed by the magma and may imply addition of fresh, hotter magma. Ostwald ripening is also used to explain some porphyritic igneous textures, especially orthoclase megacrystic granites. A crystal growing in a magma adopts a habit (see crystallography) which best reflects its environment and cooling rate. The usual phenocryst habit is the ones
The Floor Is Made of Lava The Floor Is Made of Lava The Floor Is Made Of Lava is a Danish rock band, formed in 2006. The band consists of Tobias Kippenberger (vocals), Simon Visti (bass), Lars Rock (guitar) and Ace (drums). In 2007 they had their debut, with the album "All Juice No Fruit", which was produced by Troels Abrahamsen of Veto. In 2010 they released their second album "Howl at the Moon", which was produced by Sebastion Wolff of Kellermensch. The band have primarily played concerts in Denmark. They've performed at Roskilde Festival, and have warmed up for bands such as Oasis, AC/DC, Nephew