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Paleomagnetism and Continental Drift.. In the mid 1950s a research vessel tugging a magnetometer performed a detailed study of the magnetic intensity of the Pacific sea floor. What they found seemed puzzling. When the results were finally plotted a bizarre striped patterned emerged of alternating rows of low and high intensity magnetism.
Paleomagnetism provides a relatively quick and inexpensive method for estimating cave ages. However, the method relies on establishing a complete record of polarity changes. Therefore, difficulties arise due to discontinuous deposition or erosion of the sediments.
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Chemical Geology is an international journal that publishes original research papers on the isotopic and elemental geochemistry and geochronology of the Earth. The Journal is concerned with chemical processes in igneous, metamorphic, and sedimentary petrology, low- and high-temperature aqueous solutions, biogeochemistry, and the environment.
Paleomagnetism is the study of the ancient magnetic field of both rocks and the Earth as a whole. Paleomagnetism has provided very strong quantitative evidence for polar wander and continental drift. It is interesting to note, however, that although this evidence was published in the late 1950s, the concept of continental drift did not gain widespread acceptance until the mid-1960s.
The paleomagnetic results are presented from a number of sections of the Deccan traps, distributed all over the area. All samples were subjected to partial progressive demagnetization with alternating magnetic fields and were measured with astatic magnetometers.
Gary remains involved in research at the paleomagnetic research facility and is affiliated with University of Otago as an Honorary Professor. Gary graduated from Victoria University of Wellington with bachelor's degrees in Science and Music and a doctorate in Geology.