Devil's Throne, a sill of andesiteporphyry in the Cerrillos Hills of New Mexico, USA. Although now near vertical, the andesite intrusion is concordant (parallel) with the layers of sedimentary rock into which it was intruded, and both have been tilted later. (Reference: http://geoinfo.nmt.edu/publications/maps/geologic/ofgm/downloads/40/Madrid_Report.pdf Maynard, S. R. et al. (2001) Preliminary Geologic map of the Madrid 7.5-Minute Quadrangle, Santa Fe and Sandoval Counties, Central New Mexico, New Mexico Bureau of Mines and Mineral Resources Open-File Report DM-40, page 17. Retrieved 2014-02-06.)
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