Which of the following would not be associated with turbidity current?
formation of seamounts This answer is correct. Correct! Turbidity currents are associated with density currents, deposits of graded beds, and the excavation of submarine canyons. The formation of seamounts, on the other hand, is not associated with turbidity currents.
What is not part of the continental margin?
Which of the following is NOT part of the continental margin? coral reefs surrounding a lagoon.
Which ocean has more extensive abyssal plains?
Abyssal plains found in the Atlantic and Indian Ocean tend to be more extensive than those in the Pacific Ocean.
What develops where oceanic lithosphere bends downward?
Continental crustal lithosphere. Which develops where oceanic lithosphere bends downward and sinks into the mantle? Deep ocean trenches.
What can trigger a turbidity current?
Turbidity currents can be caused by earthquakes, collapsing slopes, and other geological disturbances. Once set in motion, the turbid water rushes downward and can change the physical shape of the seafloor.
What are the 3 parts of a continental margin?
The continental margins consist of three portions: (1) the continental shelf which has shallow water depths rarely deeper than 650 ft) and extends seaward from the shoreline to distances ranging from 12.3 miles to 249 miles, (2) the continental slope where the bottom drops off to depths of up to 3.1 miles, and (3) the …
What three parts make up the area called the continental margin?
The continental margin consists of three different features: the continental rise, the continental slope, and the continental shelf. Continental margins constitute about 28% of the oceanic area.
Where is the deepest sea on earth?
Pacific Ocean
The Mariana Trench, in the Pacific Ocean, is the deepest location on Earth.
How deep is abyssal plain?
10,000 feet
At depths of over 10,000 feet and covering 70% of the ocean floor, abyssal plains are the largest habitat on earth.
How are abyssal plains formed?
Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by fine-grained sediments, mainly clay and silt. Much of this sediment is deposited by turbidity currents that have been channelled from the continental margins along submarine canyons into deeper water.
How fast is a turbidity current?
20 meters per second
The currents can reach velocities of up to 20 meters per second and travel hundreds of kilometers, which means they can also damage or destroy underwater pipelines, cables, and other equipment. Exactly how turbidity currents achieve such high speeds has long been a topic of debate.
What zone are turbidity currents found?
Turbidites are deposited in the deep ocean troughs below the continental shelf, or similar structures in deep lakes, by underwater turbidity currents (or “underwater avalanches”) which slide down the steep slopes of the continental shelf edge, as illustrated in the diagram.
What kind of sediment forms mainly from minerals that crystallize from seawater?
Sediments derived primarily from the products of weathering on the continents are called ____. What type of sediment forms from minerals that crystallize from seawater? Which type of sediment is made up mainly of the shells of diatoms and radiolarians?
What are the products of weathering and erosion?
Quartz and some of the clay minerals tend to form sedimentary deposits on and at the edges of continents, while the rest of the clay minerals and the dissolved ions tend to be washed out into the oceans to form sediments on the sea floor. Figure 5.13 Products of weathering and erosion formed under different conditions. [SE]
How are sedimentary rocks different from other rocks?
If and when deposits like these are turned into sedimentary rocks, the textures of those rocks will vary significantly. Importantly, when we describe sedimentary rocks that formed millions of years in the past, we can use those properties to make inferences about the conditions that existed during their formation.
Which is landform is created by wave erosion?
Submarine canyons are found on the continental slope and are believed to have been created ________. Which one of the following is a landform created by wave erosion?