What would be a logical conclusion about speleothems/dripstone forming on the roof of a cave?…
|samples closely, you'll discover how flattened some of the grains in the rock are. The word "Metamorphism" comes from the Greek |…
from the earth's Mantle erupt on the earths crust and turn into lava caused by the…
Volcanoes are formed on land near coastal areas when a continental plate and an oceanic plate converge. The oceanic plate submerges, due to its higher density, and is pushed deeper and deeper beneath the surface. The high temperature and pressures below melt the rock which creates hot, buoyant magma. Ultimately this magma rises towards the surface and accumulates in a reservoir, known as the magma chamber. The eruption occurs when the pressure within in the chamber surpasses the pressure of the upper rock, magma forces its way through the cracks in Earth’s crust. Magma that is low in gas and silicon dioxide produces thin quickly spreading lava which has a low viscosity, while a magma that is heavily composed of gas and silicon dioxide will yield a thick, viscose magma. The thicker magma builds up and because of this pressure, will cause a large…
Describe the characteristics of, and explain the formation of, minor forms of extrusive volcanic activity.…
Scientist Ben Kennedy begun a very lengthy quest to solve the mystery of the shrinking pumice. This quest would eventually change the way scientists think about volcanoes-forever. One of the things (out of many) that he and his colleagues found out while on the road was that not only the rock was shrinking, the pores that make up the rock were shrinking as well. They think that this was due to the heating of the rock, and the molten rock's surface tension. What the scientist found was how some volcanoes function on the inside. In past years, volcanologists believed that flowing lava sinks back down and settles after an eruption, pressing on the magma below and crushing all of the bubbles, which makes pressure build up under the compacted lava. This leaves the lava sitting there...Until it explodes. Pow! This hints at why some volcanoes will go through cycles of flowing and explosive eruptions.…
Large crystals, that contained molten lava and change environments by moving into an area with lower temperatures, would cool quickly. A porphyritic texture is where large and small crystals are embedded; therefore, porphyry contains this texture. The matrix, around the large phenocrysts, is formed by the small crystals. Phonolite porphyry is the igneous rocks that form Devils Tower. In the Phonolite, the white phenocrysts are made up of feldspar.…
“Come on we can’t be afraid of no pebbles we are gladiator-” then he gets hit by a huge chunk of coal. I chose this quote because it shows how powerful this volcano is. The Volcanic ash that erupted from the mouth of the stratovolcano condensed into pebbles of ash, and chunks of coal from the volcano. At that time the lava with high viscosity had not erupted yet. The VEI of the volcano on the convergent boundary between the African and Eurasian plate is 7 on the scale. ~Armeet Chhina…
| |It's a truly fascinating subject, and this site attempts to frame the question of how to make a volcano within that larger context |…
While in class, we have learned many things about the earth and its elements that are within it. One thing about the earth that we have learned about is volcanoes. The text describes a volcano as a hill or a mountain that is constructed by the extrusion of lava or rock fragments from a vent (Plummer, 2007).…
There were some moss covered stones that laid in clusters, as if someone piled them there on purpose. Some rocks were rough and sharp as broken glass, others, smooth as a new baby's skin. Red and gray they created a unique look to the forest. They ranged in size from the smallest pebble, to the largest bolder. They lay loose so we used precaution when we descended into the valley below.…
This volcano experiment is unlike the other volcanoes, instead it is more unique. In this science project, we will be making our own man-made volcano erupt! (except more sophisticated) Our team members are Andrew, Jimmy, Rosa, and Me. (Colin) Well, not necessarily make it burst into flames with 2,085 degrees Fahrenheit lava dripping down; we are making “lava” come out made with soap, baking soda, vinegar, and a little food color to make the “lava” look pleasant. We have many questions about this project. I don’t want to spoil it to you right now though.…
“ Mom what day are we moving, I still have a lot to pack”, Sheila asked while she had been packing her bags.…
His daughter is younger than all the other kids she hangs around with so he feels she isn’t ready for the types of influences these older friends will impose upon her.…
Igneous rocks form when a molten rock, which is start from the bottom, it called magma, when magma cools and solidifies. This process is crystallization.…