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Spatial, temporal, and petrogenetic relationships of basaltic and lamprophyric dikes and sills of the Raton Basin, southern Colorado and northern New Mexico
(University of Missouri--Columbia, 2005)
that both of these magmas were sourced from an enriched portion of the mantle, most likely the sub-continental lithospheric mantle (SCLM). New 40Ar/39Ar ages show significant overlap in the emplacement of basalts and lamprophyres between 2̃7-20 Ma...