Asked in Earth Sciences, Volcanoes
Why it is difficult for scientists to predict a volcanic eruption?
Irregularity of the plates as they move against each other, very limited knowledge of lava flow, and a lack of understanding about how exactly Vulcanism occurs. ...
Asked in Geology, Volcanoes, Plate Tectonics
What is the difference between volcanism at a hotspot and volcanism at mid-ocean ridge?
At a hotspot, a plume of hot magma comes up through the mantle, causing vulcanism. At a mid-oceanic ridge, two plates move away from eachother, leaving space that is filled by magma. Hotspots and mid-oceanic ridges can exist together at the same place, Iceland being a prime example of this. However, Hawaii, which is also a hotspot place, is nowhere near plate boundaries, so it's not a place where you would normally expect vulcanism. ...
Asked in History, Grand Canyon, Erosion and Weathering
Did someone design the Grand Canyon?
No. No one designed the Gand Canyon. Natural geological features such as the Grand Canyon, Niagara Falls, Mount Fuji and the Himalayan Mountains are formed by weather, erosion, continental drift, vulcanism and other natural phenomenon. ...
Asked in Tennessee, Volcanoes
Is there a volcano in Colorado?
No, there aren't any active or dormant volcanoes in Colorado. However, during the "growth" of the Rocky Mtns., the Rocky Mtn. Orgeny, 35-55 mya, there was a great deal of vulcanism. The San Juan range in the southwest is primarily a volcanic mountain range. ...
Asked in Science, Geology, Oceans and Seas
The process that continully adds new material to the ocean floor is called?
There are three processes that add material to the ocean floor: Sedimentation, and Vulcanism. Sedimentation is usually caused by skeletons of sea animals falling to the ocean floor. It can be argued that this is not new material but only recycled materials. But some of the remains are calcium or other deposits that are added from land based run off. Silt deposits also run into the ocean floor from the land, Vulcanism results from shifts in the ocean mantle with new material coming from...
Asked in Geology
How did minerals start out on earth?
Minerals on Earth first formed from the crystallization of rock from magma. As the Earth has evolved from collisions, vulcanism, plate tectonics, weather, and life processes which altered the atmosphere, the number of minerals present in the Earth has gradually increased to over 4,000 identifiable kinds. ...
Asked in Atmospheric Sciences
What gas was present in the earths early atmosphere?
The first atmosphere of the earth was probably mostly hydrogen with some simple hydrides such as water vapor, methane and ammonia. Vulcanism and asteroidal bombardment eventually replaced this with an atmosphere of mostly nitrogen, with carbon dioxide and some of the inert gasses. ...
Asked in Paleontology
What are the three theories that explain the extinction of the dinosaurs?
They three theories, which could have worked independently or in concert to remove the dinosaurs, are: * a large rock from space struck the earth and devastated the biosphere * a massive gamma ray burst devastated life on earth * wide-spread vulcanism devastated the biosphere ...
Asked in Geology, Igneous Rock
Is igneous a mineral?
No -- it's a type of rock, often a composite. Primay types are igneous (made by fire -- vulcanism), sedimentary (sea beds) and composite (a mixture of other types). In almost every case, all of these types are defined as how the substance at hand was created and in most cases they are not pure minerals. ...
Asked in Social Sciences, Earth Sciences, Geography
Is geography considered a social science?
Yes. I disagree. Some aspects of geography focus on people and society-therefore, social science. But some aspects of geography are hard science. Geography includes and overlaps several branches of natural science. Tectonics and vulcanism are two areas that are not investigations of people and society. ...
Asked in Earthquakes, Volcanoes
What volcanic explosion was caused by the Kobe Earthquake?
the Kobe earthquake wasn't caused by a volcanic explsion, yes it occured at a destructive plate margine where the phillipine plate subducted under the eurasian plate but no vulcanism occured, the friction caused by the subduction caused the earthquake which has been identified to have a strike slip mechanism ...
Asked in Astronomy, The Moon
Why might more crater be present on the far side of the moon then the side of the moon facing earth?
We cannot be sure, although there are several theories. It's likely that there were an approximately equal number of craters all over the Moon, but many of the nearside craters were erased or filled in with magma resulting from vulcanism or from a titanic impact. ...
Asked in Planet Jupiter
Are there volcanoes on the planet Jupiter?
No. Jupiter is a gas giant. This means, that although there is the theoretical possibility of a solid core, the planet is composed of layers of of light elements (gases at Earth temperatures and pressures) ranging from their gaseous states to their solid states depending on altitude from planetary center (with denser states occurring closer to the center). As such no vulcanism can occur on Jupiter. ...