Preliminary results of palaeomagnetic measurements of tertiary-quaternary igneous rocks from the eastern part of the Trans Mexican Volcanic Belt
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Abstract
About 500 oriented samples were taken from 59 sites in the eastern part of the Trans Mexican Volcanic Belt. The investigated igneous rocks are of Pliocene to Quaternary, and additionally in the Palma Sola Massif of Miocene age. Besides correlations with geochemical and geological results it was the intention to determine the mean poles from the palaeomagnetic directions for the Quaternary and upper Tertiary. The results indicate no significant relative motion between North America and eastern Mexico during this time.
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