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A volcanic plug, also called a volcanic neck or lava neck, is a volcanic object created when magma hardens within a vent on an active volcano. When present, a plug can cause an extreme build-up of high gas pressure if rising volatile -charged magma is trapped beneath it, and this can sometimes lead to an explosive eruption.
In 1908, Reginald P. Bolton published the first book devoted to this subject, Elevator Service. [34] The summation of his work was a massive fold-out chart (placed at the back of his book) that allowed users to determine the number of express and local elevators needed for a given building to meet a desired interval of service.
Markus Persson founded Mojang Studios in 2009.. Mojang Studios was founded by Markus Persson, a Swedish independent video game designer and programmer, in 2009. [3] [4] He had gained interest in video games at an early age, playing The Bard's Tale and several pirated games on his father's Commodore 128 home computer, and learned to programme at age eight with help from his sister.
A creeper is a fictional creature in the sandbox video game Minecraft.Creepers are hostile mobs (mobile non-player characters) that spawn in dark places.Instead of attacking the player directly, they creep up on the player and explode, destroying blocks in the surrounding area and potentially hurting or killing the player if they are within the blast radius.
These gas bubbles within the magma accumulate and coalesce into large bubbles, called gas slugs. These grow large enough to rise through the lava column. [14] Upon reaching the surface, the difference in air pressure causes the bubble to burst with a loud pop, [13] throwing magma in the air in a way similar to a soap bubble.
Vertical migration of magma is driven by gravity. Stoping occurs when blocks of wall rock material are transferred downward through a pluton. [1] [2] Stoping is an important emplacement mechanism in a variety of tectonic settings and has been widely used to explain discordant pluton contacts. [2]
Magma chambers above a subducting plate. Magma rises through cracks from beneath and across the crust because it is less dense than the surrounding rock. When the magma cannot find a path upwards it pools into a magma chamber. These chambers are commonly built up over time, [4] [5] by successive horizontal [6] or vertical [7] magma injections
The magma that would filled the chamber drained away, revealing the void beneath the surface. [ 4 ] In August 2015, the members of the Icelandic band Kaleo and fourteen support staff descended into the volcano's magma chamber and recorded a live rendition of the band's song " Way Down We Go ".