Thompson, R.N, Ottley, C.J, Smith, P.M, Pearson, D.G, Dickin, A.P, Morrison, M.A, Leat, P.T, Gibson, S.A, "Source of the quaternary alkalic basalts, picrites and basanites of the Potrillo Volcanic Field, New Mexico, USA: lithosphere or convecting mantle?", Journal of Petrology, 2005