| | Journal (article/letter/editorial) | 315-333, 1983 Petrogenesisof the Concord gabbusyenite complex, North Carolina BnnsnRA A. Orsr,Nr. Hanny Y...Massachusetts 02139 Abstract The Concord intrusive complex, Cabamrs County, North Carolina, consists of a large gabbro...envelopedby a horseshoe-shapedsyenite ring dike. The complex is clearly delineated from surrounding rocks by...isotopic compositionsof gabbro and syenite in this complex overlap, suggesting the two rock types may be related...microcline, clinopyroxene, amphibole, biotite, quartz, Fe-Ti oxides, pyrite, apatite, zircon and monazite |
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