on April 8, 2022
What are the different types of tephra?
GeologyClassification Ash – particles smaller than 2 mm (0.08 inches) in diameter. Lapilli or volcanic cinders – between 2 and 64 mm (0.08 and 2.5 inches) in diameter. Volcanic bombs or volcanic blocks – larger than 64 mm (2.5 inches) in diameter. Which of the following are types of tephra? For example: Ash tuff –
on April 8, 2022
What are the factors do the damage earthquakes cause depend on?
GeologyWhen an earthquake strikes, the intensity of earthquake shaking determines the severity of damage. In turn, the main factors affecting earthquake shaking intensity are earthquake depth, proximity to the fault, the underlying soil, and building characteristics—particularly height. What are the factors that cause earthquakes? The tectonic plates are always slowly moving, but they get stuck
on April 8, 2022
Where does most of our knowledge about the Earth come from?
GeologyMost of our knowledge of Earth’s interior comes from the study of earthquake waves. How do we get knowledge about the interior of the earth? Scientists are able to understand Earth’s interior by studying seismic waves. These are waves of energy that travel through Earth, and they move similarly to other types of waves, like
on April 8, 2022
What is a example of geology?
GeologyAn example of geology is the study of rocks and stones. An example of geology is learning about how the Earth was formed. The structure of the earth’s crust in a given region, area, or place. The structure of a specific region of the Earth, including its rocks, soils, mountains, fossils, and other features. What
on April 8, 2022
What is clastic texture?
GeologyClastic texture: grains or clasts do not interlock but rather are piled together and cemented. Boundaries of individual grains may be another grain, cement or empty pore space. Overall rock is generally porous and not very dense. What is an example of a clastic? Clastic sedimentary rocks form from the accumulation and lithification of mechanical
on April 8, 2022
Are subduction zones convergent or divergent?
GeologyConvergent boundaries (subduction zones) Are subduction zones convergent? Subduction zones are where the cold oceanic lithosphere sinks back into the mantle and is recycled. They are found at convergent plate boundaries, where the oceanic lithosphere of one plate converges with the less dense lithosphere of another plate. Can subduction zones be divergent? Therefore, divergent double
on April 8, 2022
Is Mount Fuji likely to erupt again?
GeologyIs Mount Fuji likely to erupt again? Mount Fuji last erupted in 1707, and volcanologists say there are no signs at present of an impending problem on the mountain, although the peak is still classified as active. What would happen if Mount Fuji erupted today? A modern-day eruption by Mount Fuji could blanket the greater
on April 8, 2022
What is the relationship between weathering erosion and deposition?
GeologyWeathering is when rocks are broken down (chemically or mechanically) and erosion is when sediment is carried away. … Deposition is when the sediment settles out of the water , wind or ice that is carrying it. What is the relationship of weathering erosion and deposition? Weathering – The natural process of rock and soil
on April 8, 2022
What makes up a volcano?
GeologyThey are made of small pieces of solid lava, called cinder, that are erupted from a vent. The ground shakes as magma rises from within the Earth. Then, a powerful blast throws molten rocks, ash, and gas into the air. What is a volcano made of? A volcano is formed when hot molten rock, ash
on April 8, 2022
What rock is molten?
GeologyThis molten rock is called magma. Molten rock that reaches Earth’s surface is called lava. An igneous rock is classified on the basis of its mineral composition and the size of its mineral crystals. A rock formed from magma can have the same composition as a rock formed from lava. What rock is molten rock?