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geology,oceans,seas
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Determining how the sea floor changes over time has given scientists information about the?
Determining how the sea floor changes over time has given scientists information about the Earth's tectonic plate movements, the distribution of volcanic activity, and the history of sea level changes. Observing these changes helps scientists better understand the dynamic processes that shape our planet.
Who were the two scientists who proposed the theory of sea floor spreading in the early 1960's?
The two scientists who proposed the theory of sea floor spreading in the early 1960s were Harry Hess and Robert Dietz. They presented the idea that new oceanic crust is formed at mid-ocean ridges and then moves away from the ridges, eventually sinking back into the mantle at subduction zones.
What did scientist learn when they mapped the ocean floor in the 1800s?
there is a mid-atlantic ridge
How do you Calculation the rate of sea floor spreading examples?
The rate of sea floor spreading is calculated by measuring the distance between magnetic stripes on the sea floor, which are formed by the alternating polarity of Earth's magnetic field. By knowing the age of the sea floor rocks at different distances from a mid-ocean ridge, scientists can determine the spreading rate. For example, if the rocks at a certain distance from the ridge are 1 million years old, and the distance is 100 km, the spreading rate would be 10 cm/year.
What happens when magma in the mantle heats up?
Lots of water will evaporate very fast and the mantle's compositions would harden and solidify to become part of a new sea floor. This is what scientists call 'sea-floor spreading'.
What can scientists learn about from fossils found in sea floor sediment?
The climate at the time the fossile was preserved. :)
What discovery led scientists to accept Wegeners continental drift hypothesis?
One day while scientists were exploring the sea floor, they discovered sea-floor spreading, thus proving Wegener's hypothesis to be correct.
What did scientists learn when they mapped the ocean floor in the 1800s?
there is a mid-atlantic ridge
What discovery did scientist make when comparing the age of the sea floor to that of the continents?
The scientists realized that the continents were much older, leading them onto the theory of Sea Floor Spreading!
What scientists helped discover the process of the sea floor?
the scientist was Dr. alfred wegener.
What do scientists research on submarines?
The sea floor, under water mountains, sea life, under water lava flows, etc.
What did scientist discovere when they analyzed the magnetic bands on the ocean floor?
Scientists found Alternating bands of magnetism.
How the sea floor changes over time has given scientists information about the -?
formation rate of the ocean crust
Determining how the sea floor changes over time has given scientists information about the?
Determining how the sea floor changes over time has given scientists information about the Earth's tectonic plate movements, the distribution of volcanic activity, and the history of sea level changes. Observing these changes helps scientists better understand the dynamic processes that shape our planet.
Determining how the sea floor changes over time has given scientists information about the -?
formation rate of the ocean crust
What did scientists learn about it?
Scientists learn a few different things. Scientists learn new things very day.
What are three ways scientists can learn about the deep ocean?
With submersibles, sonar, magnetometers, and satellites.
