A View Into the Cretaceous Geomagnetic Field From Analysis of Gabbros and Submarine Glasses of the Troodos Ophiolite Academic Article uri icon

abstract

  • Abstract The nature of the geomagnetic field during the Cretaceous normal polarity superchron (CNS) has been a matter of debate for the last several decades. Numerical geodynamo simulations predict higher intensities, but comparable variability, during times of few reversals than times with frequent reversals. Here we present new paleointensity data from 221 gabbroic samples obtained from 35 sites in the lower oceanic crust of the Troodos ophiolite, many of which can be located with respect to the ancient spreading center …

publication date

  • December 1, 2006