What type of rock is gneiss?
Regional Specificsgneiss, metamorphic rock that has a distinct banding, which is apparent in hand specimen or on a microscopic scale. Gneiss usually is distinguished from schist by its foliation and schistosity; gneiss displays a well-developed foliation and a poorly developed schistosity and cleavage. What type of metamorphic rock is gneiss? Gneiss is a high grade metamorphic
How does weathering shape the earth’s surface?
Regional SpecificsThe effects of weathering disintegrate and alter mineral and rocks near or at the earth’s surface. This shapes the earth’s surface through such processes as wind and rain erosion or cracks caused by freezing and thawing. Each process has a distinct effect on rocks and minerals. How does weathering changes the shape of the earth?
How can we use volcano?
Regional Specifics6 ways volcanoes benefit Earth, our environment Atmospheric cooling. … Land formation. … Water production. … Fertile land. … Geothermal energy. … Raw materials. What can volcano be used for? They helped cool off the earth removing heat from its interior. Volcanic emissions have produced the atmosphere and the water of the oceans. Volcanoes make
What is Eyjafjallajokull and what did it cause?
Regional SpecificsEyjafjallajokull is located below a glacier. The Eyjafjallajökull volcano erupted in 920, 1612 and again from 1821 to 1823 when it caused a glacial lake outburst flood (or jökulhlaup). It erupted three times in 2010—on 20 March, April–May, and June. The March event forced a brief evacuation of around 500 local people. What was the
How do earthquakes predict volcanic eruptions?
Regional SpecificsEarthquakes. Moving magma shakes the ground, so the number and size of earthquakes increases before an eruption. A volcano that is about to erupt may produce a sequence of earthquakes. Scientists use seismographs that record the length and strength of each earthquake to try to determine if an eruption is imminent. How do we predict
What 3 factors determine the characteristics of sedimentary rock?
Regional SpecificsWhat three factors determine the characteristics of sedimentary rocks? The source of sediment, the way sediment was moved and the conditions that sediment was deposited. How are newly formed sediments transported to new locations? They are transported by wind, water or ice. What 3 characteristics determine the type of sedimentary rock? Clastic sediments or sedimentary