The Chico Sill Complex, Northeast New Mexico: A case for late-stage phonolite-carbonatite melt immiscibility

Lee S. Potter
The Chico Sill Complex (Northeast New Mexico) is the result of magmatic episodes from ~37 Ma to 20 Ma and produced a diverse and compositionally discontinuous suite of mostly intrusive silica-saturated and silica-undersaturated rocks. The Chico Phonolite was emplaced ~ 26 to 20 Ma in dikes and large sills. Sills of different composition may be stacked 2 and 3 thick. They bear no chemical affinity to the bulk of other rocks in the complex based...
This data repository is not currently reporting usage information. For information on how your repository can submit usage information, please see our documentation.