Open Question: Direct evidence for seafloor spreading comes from?
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Ghjggy Ygugk Member since:June 27, 2011Total points:75 (Level 1)Direct evidence for seafloor spreading comes from
A)magnetic anomalies found on either side of oceanic ridges.
B) the detection of the Mohorovicic discontinuity by seismic wave analysis.
C) shadow zones detected by the study of S waves that were produced by earthquakes.
D) measurement of plate motion along the San Andreas Fault.Answer Question
by Gary H Member since:November 16, 2007Total points:27,037 (Level 7)A) is one answer but these other answers may be correct as well. Another very direct measure is the measurement of the motion of the continents, satellite measurements have made very precise measurements of the distance between special points on different continents.
Ghjggy Ygugk Member since:June 27, 2011Total points:75 (Level 1)Direct evidence for seafloor spreading comes from A)magnetic anomalies found on either side of oceanic ridges.
B) the detection of the Mohorovicic discontinuity by seismic wave analysis.
C) shadow zones detected by the study of S waves that were produced by earthquakes.
D) measurement of plate motion along the San Andreas Fault.Answer Question
by Gary H Member since:November 16, 2007Total points:27,037 (Level 7)A) is one answer but these other answers may be correct as well. Another very direct measure is the measurement of the motion of the continents, satellite measurements have made very precise measurements of the distance between special points on different continents.
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