What information did the Glomar Challenger study in 1968?
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.
What did the Glomar Challenger study in 1968?
It investigated some 624 sites in the Atlantic, Pacific, and Indian oceans, not only revealing the presence of deep ocean salt domes (which themselves may indicate the presence of oil) but also supporting the theory of plate tectonics by providing evidence of continental drift and seafloor renewal.
Which is one piece of evidence of seafloor spreading quizlet?
Several types of evidence supported Hess’s theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. an undersea mountain chain where new ocean floor is produced.
Which is one piece of evidence of seafloor spreading fossil material?
Explanation: Eruptions of molten material, which results in continent material is a piece of evidence of seafloor spreading.
Where does seafloor spreading occur quizlet?
Where does seafloor spreading occur? This process occurs along divergent plate boundaries at areas called mid-ocean ridges.
Is sonar is a device that scientists use to map the ocean floor?
Dive and Discover : Oceanographic Tools: Sonar. Echo sounding is the key method scientists use to map the seafloor today. The technique, first used by German scientists in the early 20th century, uses sound waves bounced off the ocean bottom.
What is the process that continually adds new crust?
This process, called sea-floor spreading, continually adds new material to the ocean floor. Scientists have found strange rocks shaped like pillows in the central valley of mid-ocean ridges. Such rocks can form only if molten material hardens quickly after erupting under water.
How do scientists know the seafloor is spreading quizlet?
Scientists mapped the mid-ocean ridge using sonar. Sonar is a device that bounces sound waves off under-water objects and then records the echos of these sound waves. Explain seafloor spreading.
What are the main features of the ocean floor?
Features of the ocean include the continental shelf, slope, and rise. The ocean floor is called the abyssal plain. Below the ocean floor, there are a few small deeper areas called ocean trenches. Features rising up from the ocean floor include seamounts, volcanic islands and the mid-oceanic ridges and rises.
What is the most prominent feature on the ocean floor?
global mid-ocean ridge system
What is the ocean floor called zone?
The ocean is divided into five zones: the epipelagic zone, or upper open ocean (surface to 650 feet deep); the mesopelagic zone, or middle open ocean (650-3,300 feet deep); the bathypelagic zone, or lower open ocean (3,300-13,000 feet deep); the abyssopelagic zone, or abyss (13,000-20,000 feet deep); and the …
What zone is the open ocean?
pelagic zone