At which location would the greatest amount of frost wedging occur?

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At which location would the greatest amount of frost wedging occur?

Frost wedging is most effective in a climate like Canada's. In warm areas where freezing is infrequent, in very cold areas where thawing is infrequent, or in very dry areas, where there is little water to seep into cracks, the role of frost wedging is limited.

Which of the following climates will have the highest rate of weathering?

Although the rate of weathering depends on the type of rock, rocks in tropical climates experience the highest rates of weathering because of the combination of high heat and heavy rainfall.

How did weathering destroy New Hampshire’s Old Man in the Mountain?

How did weathering destroy New Hampshire's Old Man in the mountain? water migrated along fractures in the rock, where it froze and wedged the rock apart.

Which of the following scenarios best describes how something will develop in an igneous rock?

Which of the following scenarios best describes how sheeting will develop in an igneous rock? A subterranean pluton is exposed at the surface, releasing confining pressure. When sheeting developed in an igneous pluton, fractures will develop in an orientation PERPENDICULAR to the direction of expansion.

Where does ice wedging occur?

Ice wedging is common where water goes above and below its freezing point (Figure below). This can happen in winter in the mid-latitudes or in colder climates in summer. Ice wedging is common in mountainous regions like the Sierra Nevada pictured above.

Does ice wedging only in extremely cold climates?

Ice wedging is also known as frost wedging. Both are caused by the expansion of freezing water. Ice wedging occurs in areas where very low, freezing temperatures are present and in terrain where water can get into the cracks of the rocks.

In which climates is the weathering rate slowest?

A cold, dry climate will produce the lowest rate of weathering.

Why is weathering more rapid in tropical than in temperate areas?

Weathering is more rapid in humid, tropical regions than in temperate regions. This is because tropical areas receive more rainfall, which encourages chemical weathering such as carbonation. Also, tropical areas are warmer, and the rate of chemical weathering doubles with every rise of 10°C.

How will physical and/or chemical weathering contribute to create rounded shapes during spheroidal weathering?

How will physical and/or chemical weathering contribute to create rounded shapes during spheroidal weathering? Physical weathering will fracture a rock, which leaves more area for chemical weathering to attack. Which part of the rock in Figure 2 will get chemically weathered the most quickly?

How can the addition of water make a slope fail creating a landslide quizlet?

How can the addition of water make a slope fail, creating a landslide? water in pore spaces reduces cohesion between particles.

Which of the following locations describes one example of a place where igneous rocks are forming?

Devil's Tower National Monument in Wyoming is an example of an igneous rock. Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust.

Which type of igneous rocks based on composition has the highest amount of silica content?

In a widely accepted silica-content classification scheme, rocks with more than 65 percent silica are called felsic; those with between 55 and 65 percent silica are intermediate; those with between 45 and 55 percent silica are mafic; and those with less than 45 percent are ultramafic.

What is ice wedging quizlet?

what is the definition of ice wedging? Process that splits rock when water seeps into cracks, then freezes and expands.

Which of these is ice wedging?

Ice wedging is a form of mechanical weathering or physical weathering in which cracks in rock or other surfaces fill with water, freeze and expand, causing the cracks to enlarge and eventually break.

Which type of climate has the greatest amount of rock weathering caused by frost action?

Which type of climate has the greatest amount of rock weathering caused by frost action? a wet climate in which temperatures alternate from below freezing to above freezing.

Which environment would typically have the highest rate of weathering and erosion?

Climate- High amounts of water and higher temperatures generally cause chemical reactions to run faster. Thus warm humid climates generally have more highly weathered rock, and rates of weathering are higher than in cold dry climates.

Would the Arctic regions of Canada and the US Alaska experience more chemical weathering or more physical weathering explain?

Arctic regions would experience more physical weathering. This is because these regions have significant seasonal variations in temperature that would result in a great deal of freezing and thawing of water in cracks in rocks.

Which environment would typically have the highest rate of weathering both chemical and mechanical and erosion?

Climate- High amounts of water and higher temperatures generally cause chemical reactions to run faster. Thus warm humid climates generally have more highly weathered rock, and rates of weathering are higher than in cold dry climates.

Which of the following classes of sedimentary rock is produced by weathering and erosion of pre existing rocks?

Which of the following classes of sedimentary rock is produced by weathering and erosion of pre-existing rocks? organic sedimentary rock.

What geologic event led to the formation of the rocks that make up Shiprock quizlet?

What geologic event led to the formation of the rocks that make up Shiprock? The rocks in Shiprock formed when magma solidified in the neck of an old volcano.

What is mass movement and how does it differ from other erosional processes such as streams glaciers or wind?

Define mass movement. How does it differ from erosional agents such as streams, glaciers, and wind? Mass movement is the downslope movement of rock material driven by the force of gravity. It differs from erosional processes in that mass movement does not require a transporting medium.

What would likely happen to a fence on a hill over time if the fence were built perpendicular to the hill’s slope?

What would likely happen to a fence on a hill over time if the fence were built perpendicular to the hill's slope? The top of the fence would likely bend uphill as creeping rocks moved under the fence and pushed the fence bottom downslope.

Where are most igneous rocks found?

Where Igneous Rocks Are Found. The deep seafloor (the oceanic crust) is made almost entirely of basaltic rocks, with peridotite underneath in the mantle. Basalts are also erupted above the Earth's great subduction zones, either in volcanic island arcs or along the edges of continents.

Where would you most likely find igneous rocks?

In which location would you most likely find an igneous rock? A Volcano.

Which of the following igneous rocks has the lowest silica content?

Cards

Term Which of the following properties does not depend on the chemical composition of an igneous rock/magma? Definition grain size
Term Which of the following igneous rocks has the lowest silica content? Definition ultramafic

•Nov 7, 2011

What has the highest amount of silica?

Although every kind of rice contains silica, brown rice has the highest amount. Three heaped tablespoons contains 4.51 milligrams of silica. Of the 18 foods with the highest silica content, 11 are cereal products, and those containing oats were at the top of the list.

In what kind of climate does ice wedging usually occur quizlet?

The reason why it occurs mainly in cold areas is because taht is where ice wedging occurs the most. Ice wedging is supposed to freeze and thaw to break rock. It would have to be in a cold climate to freeze.

Why is frost wedging most common at mountain tops?

Frost Wedging is common in places where the temperature varies from below the freezing point of water to above the freezing point. Where else might frost wedging occur? Frost wedging also occurs in places where there are frequent freezes and thaws. Bare mountaintops are especially susceptible to frost wedging.

In which climate would rocks undergo the greatest amount of chemical weathering?

High temperatures and greater rainfall increase the rate of chemical weathering. 2. Rocks in tropical regions exposed to abundant rainfall and hot temperatures weather much faster than similar rocks residing in cold, dry regions.

In which climate would the chemical weathering of limestone occur most rapidly a cold and dry b cold and humid C warm and dry d warm and humid?

Chemical weathering occurs more rapidly in regions where temperatures are higher and where the amount of precipitation is evidently higher. Moisture can only speed up the rate of chemical weathering.