Evidence that support the seafloor spreading theory
Answers
There are evidence that supports the seafloor spreading hypothesis. Studies conducted with thermal probes, for example, indicate that the heat flow through bottom sediments is generally comparable to that through the continents except over the mid-ocean ridges, where at some sites the heat flow measures three to four times the normal value.
The anomalously high values are considered to reflect the intrusion of molten material near the crests of the ridges. Research has also revealed that the ridge crests are characterized by anomalously low seismic wave velocities, which can be attributed to thermal expansion and micro fracturing associated with the upwelling magma.
Studies have shown that the strength of the geomagnetic field is alternately anomalously high and low with increasing distance away from the axis of the mid-ocean ridge system.
Measurements of the thickness of marine sediments and absolute age determinations of such bottom material have provided additional evidence for seafloor spreading.
Evidence to support the seafloor Spreading Theory:
There is various evidence which supports Hess’s Theory of seafloor spreading.
Molten Materials, Magnetic Materials stripes, etc affects the sea floors in the most astonishing way. It is revolutionized by geologic thoughts.
Evidence of seafloor spreading theory
1. Evidence of Molten Material
In the year of 1960, scientists derived ocean floor in Alvin. Rocks had shaped like toothpaste and squeezed pillows.
2. Evidence of Magnetic stripes
Magnetic poles have been reversed which is magical for the scientists. It was the greatest support of sea fall spreading.