By Friday, THE FIRST DAY OF THE ACTUAL FESTIVAL, Woodstock Ventures was out of food. Then they had the gall to ask their confined neighbors for sandwich donations. About 750,000, if they didn't mind. Some locals felt so sorry for the hungry kids that they did what they could to help.
Basaltic magma is hotter, denser, and less viscous than most other  types of lava. It is poor in silica and rich in iron and magnesium.  Eruptions involving it are typically â¦ non explosive or only mildly  explosive.It is less dense, more viscous, and cooler than most other types of  magma. It usually has a very high gas content, meaning that most  eruptions involving it will be highly explosive. Most  supervolcanoes are fed by rhyolitic magma.
There are four major groups of the igneous rocks: basalt, andesite, dacite and rhyolite. Each of these different rock groups form different types of volcanoes. Volcanic rocks forming during eruption of Kilauea, USGS. Rhyolite rocks. Rhyolite magma cooling underground forms granite.Granite has large interlocking crystals that can be easily seen if you hold the rock at arm's length. Rhyolite is associated super volcanoes and explosive volcanic eruptions that create calderas.asalt rocks. Basalt rocks are formed from dark heavy lava that usually forms in the upper mantle. Pillow basalt covers all the ocean floors. It forms when lava erupts on the ocean floor at spreading ridges where two crustal plates are separating.