TheContinentsBeneathYourFeet—AreTheyDrifting? g77 6/22 16-21
WilltheTheoryStand?
Scientists take satisfaction in finding a theory that apparently brings many disparate kinds of information together into a unified picture. That is what they believe the tectonic-plate theory has done for the science of geology. But does that mean that it is therefore the final and correct answer? Not necessarily.
In spite of seeming wide-ranging successes of the theory, there are still many bits of information that do not fit into it. Geologists argue over the interpretation of details. As research continues, some of these questions may be answered in a way that harmonizes with the theory. On the other hand, there may remain stubborn facts that cannot be reconciled with it.
One major shortcoming is acknowledged in the present state of the theory. The forces that cause the upwelling magma along the ridges are not explained. Some geologists have been content with the general statement that convection currents inside the earth’s mantle are responsible. But what generates the convection, and why does its pattern change? When this idea is examined in detail, it breaks down. A convection current in air or water rises around a central axis, not in a long slender sheet that would form a ridge. It is even more difficult to imagine how the displacements along the transform faults can result from convection currents.
Professors Flint and Skinner of Yale University offer this word of caution in their book PhysicalGeology:
“The theory of plate tectonics seems to provide answers for so many questions that we are tempted to believe it is the long-sought unifying theory that explains the lithosphere [the land areas of the earth, from its surface to the center of the earth]. But we must be careful. Other theories, too, have seemed overwhelming in their promise, yet in the long run have proved incorrect. The theory of plate tectonics is still only a theory.”
Whether the tectonic-plate theory survives the test of time and proves correct or not, we have abundant evidence of the great power and wisdom of earth’s Creator.
Lots of blah blah blah, but they sit on the fence citing all the for’s and against, yet won’t give an answer until they receive the light!
Mattieu.