on March 31, 2022
What is the definition of Moraine in Science?
GeologyA moraine is material left behind by a moving glacier. This material is usually soil and rock. Just as rivers carry along all sorts of debris and silt that eventually builds up to form deltas, glaciers transport all sorts of dirt and boulders that build up to form moraines. What are the two types of
on March 31, 2022
Can you see lava in Hawaii?
GeologyQ: Can you see lava in Hawaii right now? Yes! The currently ongoing eruption is contained within the Halemaʻumaʻu crater. Check out our often updated viewing tips for how to best see the lava. Can you see the lava lake in Hawaii? The bursting spatter cone and lava lake is visible from the south rim
on March 31, 2022
What is the difference between absolute and relative time?
GeologyRelative time is the physical subdivision of the rocks found in the Earth’s geology and the time and order of events they represent. Absolute time is the measurement taken from the same rocks to determine the amount of time that has expired. Whats the difference between absolute and relative time? There are two types of
on March 31, 2022
What type of rock is gneiss?
Geologygneiss, 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
on March 30, 2022
How does weathering shape the earth’s surface?
GeologyThe 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?
on March 30, 2022
How can we use volcano?
Geology6 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
on March 30, 2022
What is Eyjafjallajokull and what did it cause?
GeologyEyjafjallajokull 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
on March 30, 2022
How do earthquakes predict volcanic eruptions?
GeologyEarthquakes. 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
on March 29, 2022
What 3 factors determine the characteristics of sedimentary rock?
GeologyWhat 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
on March 29, 2022
What minerals are in rock dust?
GeologyRock dust (also called rock flour or rock mineral powder) is exactly what it sounds like.…This means the mineral content varies considerably, but in general rock dusts contain: Large amounts of silicon, aluminum, and sometimes iron. Lesser amounts of calcium, copper, magnesium, manganese, potassium, sulfur, and zinc. Which rock dust is best? Basalt is a