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These scars, called fracture zones, were known as morphological features even before transform faults were recognized, and they correspond to the intra-plate traces of oceanic transform faults on the sides of mid-ocean ridges.

A continental shelf extends from the coastline of a continent to a drop-off point called the shelf break. From the break, the shelf descends toward the deep ocean floor in what is called the continental slope. Even though they are underwater, continental shelves are part of the continent.

What is the difference between a continental ridge and continental rise?

Mid-ocean ridges form in places where plates are moving apart. Volcanoes also form in such places. Magma also rises through the crust at both mid-ocean ridges and volcanoes. 3 – The continental slope is made of continental crust, but the continental rise is made of sediment.

What method is used most frequently to investigate the structure of sediment and rock layers of the sea floor?

sound waves

Which of the following is the best example of an active continental margin?

An active continental margin is found on the leading edge of the continent where it is crashing into an oceanic plate. An excellent example is the west coast of South America. Active margins are commonly the sites of tectonic activity: earthquakes, volcanoes, mountain building, and the formation of new igneous rock.

Which formation did the Glomar Challenger study in 1968?

Glomar Challenger was a deep ocean study conducted by the American National Science Foundation and University of California (Institution of Oceanography) between 1968 to 1983, and during the initial stages of the study i.e in 1968, sample from drilling cones was taken at different places, and then the age of the …

Which information did the Glomar?

ANSWER: Glomar Challenger studies about the “age of rocks in various places in the ocean” in 1968. EXPLANATION: Glomar Challenger was a “deep sea research vessel” for marine geology and oceanography studies.

Which information does the Glomar Challenger study in 1960?

Purpose. Glomar Challenger was made to help Harry Hess with the theory of Seafloor Spreading by taking rock samples confirming that the farther from the Mid-ocean ridge, the older the rock was.

What is the Glomar Challenger known for?

Above: The Glomar Challenger was the first research vessel specifically designed in the late 1960s for the purpose of drilling into and taking core samples from the deep ocean floor.

What is the advantage or benefit of deep sea drilling?

Offshore drilling is the method of extracting petroleum from beneath the sea, Offshore Drilling increases the oil production and the amount of oil that we have to use for the fuel and the energy, It stimulates the economy and keeps our society going.

How deep can an oil rig drill?

How deep do Offshore Rigs drill? Depending on the rig type, offshore rigs are rated to drill in water depths as shallow as 80 feet to as great as 12,000 feet. The greatest water depth a jackup can drill in is 550 feet, and many newer units have a rated drilling depth of 35,000 feet.

How do they know where to drill for oil?

No one knows for sure how much oil there is in a given area until people drill there, but geologists can make an educated guess. Geologists can measure the density of underground rocks by sending radio waves into the ground and measuring the speed with which they reflect back to the surface.

Where is the best place to find oil?

Today I’ll take a look at the survey’s results for the five best places on Earth for oil and gas investments.

  1. Oklahoma.
  2. Mississippi.
  3. Texas.
  4. North Dakota.
  5. Manitoba. This is Canada’s only province in the top five, surprising giving Alberta’s prominent role in developing oil sands (that province ranked 21st in the survey).

What was oil used for in the 1800s?

Through the 1800s, most oil was used for oil lamps and kerosene lamps–replacing whale oil, which was becoming scarce by then. By the early years of the 20th century, though, development of the internal combustion engine shifted demand of petroleum products to automobiles–the market that has driven demand ever since.