What does it actually mean when the seafloor spreads? Seafloor spreading wasdiscovered circa World War I, when the Navy started using echo-sounding devices to measure the ocean's depth, according toUSGS. The Navy sent sound signals from the ship to the ocean's floor, and back, and while i...
How does mantle convection cause seafloor spreading? What are air currents caused by temperature differences called? What is a dry adiabatic lapse rate? How do convection currents in the mantle drive plate tectonics? What is the most common unit of pressure in meteorology?
Student: The Atlantic Ocean floor is spreading and getting wider, so there is more ocean between the Americas and Europe and Africa. Professor: OK. And why is it spreading? Student: Well, the seafloor is split.There is a ridge, a mountain range that runs north and south there.And the ...
How does an ocean basin form? An ocean basin is formedwhen water has covered a large portion of the Earth's crust. ... Over a long period of time, an oceanic basin can be created by the spreading of the seafloor and the movement of tectonic plates. How long does it take a seamount...
thoughitsinfluenceonthetemperatureanddynamicsofthesouthernhemispheresstratospheremaybelargeenoughtobeofinteresttoscientists.GeologistshavefoundevidenceofsimilarspasmsatHungaTonga-HungaHaapai,oneabout1,000yearsago,oneabout2,000yearsago.Inbothofthosecasesthereseemtohavebeenmultipleeruptions.Thatdoesnotnecessarilymeanthe...
However, Mr Manser does not see that as an unfamiliar position for the electricity industry. He cites the proposed construction of the new nuclear power station at Sizewell in Suffolk, which will have a high initial capital cost. The argument as Sizewell that the reason for the expenditure is...
Professor: OK. And why is it spreading? Student: Well, the seafloor is split.There is a ridge, a mountain range that runs north and south there.And the rock material flows up from Earth's interior here, at the split, which forces the two sides of the ocean floor to spread apart, to...
Student: The Atlantic Ocean floor is spreading and getting wider, so there is more ocean between the Americas and Europe and Africa. Professor: OK. And why is it spreading? Student: Well, the seafloor is split.There is a ridge, a mountain range that runs north and south there.And the ...
Does anyone know what's happening to the Americas? I…I think we've talked about that before. Lisa? Student: They are moving westward, away from Europe and Africa. Right? Professor: Right. And what makes us think that? Student: The Atlantic Ocean floor is spreading and getting wider, ...