Using earthquakes to identify plate boundaries extra metric rulers for students who forgot them.
Atlantic sea floor spreading activity 2 6.
Because students choose different study sites their answers will vary but should fall within the range of a 9 12km my half.
North atlantic ocean 2.
Oceanic research also showed that new land was being created on either side of the mid atlantic ridge the so called sea floor spreading phenomenon 12.
Atlantic sea floor spreading activity 2 6 date.
The correlation of rock ages ran from recife in brazil to trinidad off the coast of venezuela on the south american side and from luanda to sierra leone on the african side.
Atlantic sea floor spreading no instructor supplied materials are needed for this activity.
Sea floor spreading 2 mid atlantic ridge that mirror each other.
The map of the northern atlantic ocean basin fig.
Average speed of bna relative to a since 67 7 myr.
The theory of why this occurs states that when the rocks are being formed from lava at the mid atlantic ridge they.
Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge.
1 98 cm yr 133 800 000 cm 67 700 000 yr 1 98 cm yr rounded from 1 97637 average speed.
Answers vary depending upon the strip of ocean students choose.
It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary.
Atlantic sea floor spreading activity 2 6 the map of the northers atlantic ocran basin g az of equal age of the basaltic e the sediments that have accumulased on the seafloor thse sochuroms were derived by maria scton and her olgues 012 from an analysis of marine magnetic anomalics and their ages are based on the gromagnetic polariey time scale.
The fascinating thing about the rocks are that the magnetic alignments change and reverse polarity at times.
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This creates new ocean crust.
A26 1 shows is chrons lines ofequal age of te basaltic crust beneath the sediments that have accumulated on the seafloor.
Answer key student activity the distance between us and them.
1 mechanism explaining sea floor spreading basics for plate tectonics duration.
Sea floor spreading in the atlantic ocean 1.
Atlantic sea floor spreading 2 6a.
Plate tectonics and the sea floor activity.
Sea floor spreading answer key.
