Is Dante’s Peak based on Mount St Helens?
Regional SpecificsThe volcanic inspiration for “Dante’s Peak” was the 1980 eruption of Mount St. Helens, which was used as a filming location for some scenes in the movie. “Dante’s Peak” is also strikingly similar to the 1981 movie “St. Helens,” which portrays a slightly dramatized story about the real event. Where is Dante’s Peak based? Dante’s
What are the three forces that cause plate motion?
Regional SpecificsConvection occurs in the mantle underneath Earth’s tectonic plates. Three forces act on the plates to make them move: basal drag from convection currents, ridge push at mid-ocean ridges, and slab pull from subducting plates. Convection currents in the mantle produce a force that causes motion called basal drag. What are three ways forces of
Is sand a product of weathering?
Regional SpecificsAfter a series of weathering cycles, sand-sized material will be produced and the grains continue to reflect the parent rocks. What are products of weathering? As weathering proceeds, they are likely to be broken into small pieces and converted into clay minerals and dissolved ions. Ultimately this means that quartz, clay minerals, iron oxides, aluminum
What are the characteristics of mafic rocks?
Regional Specificsmafic rock, in geology, igneous rock that is dominated by the silicates pyroxene, amphibole, olivine, and mica. These minerals are high in magnesium and ferric oxides, and their presence gives mafic rock its characteristic dark colour. What are the characteristics of felsic rocks? Felsic refers to silicate minerals, magma, and rocks which are enriched in
Where is Chalcedony found?
Regional SpecificsChalcedony: California; Iceland; India; Mexico; Namibia; Nevada; Oregon; Russia. Carnelian: Brazil; Egypt; India; Uruguay. Sard: Brazil; Uruguay. Bloodstone: Australia; Brazil; India; United States. Where do you find chalcedony? Chalcedony can be found in weathering volcanic rocks, but also in sedimentary ones, often together with agate. In igneous or metamorphic rocks chalcedony is very rare and
What is formed when layers of turbidites accumulate?
Regional SpecificsAbyssal plains are formed by the accumulation of turbidites beyond the limits of deep-sea fans and abyssal cones in locations where there is a very large sediment supply. Where would a coral reef most likely be found? Corals are found all over the world’s oceans, from the Aleutian Islands off the coast of Alaska to