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大别造山带北部北淮阳褶皱带中分布少量变质变形基性侵入体,错石U-Pb研究的初步结果表明,它们的形成时代是新元古代（78±18Ma）,与北大别杂岩带中TTG片麻岩的形成时代一致。它们不仅形成时代与北大别杂岩带中基性-超基性岩不同,而且表现出与北大别杂岩带中基性侵入体不一致的主量元素地球化学信息。
Preliminary results of the U-Pb dating of the stratospheric U-Pb show that they formed in the Neoproterozoic (78 ± 18Ma) with the North Dabie complex, with a small amount of basic metamorphic deformation intrusions distributed in the Beihuaiyang fold belt in the northern part of the Dabie orogen. The formation of TTG Gneiss in the same era. They not only formed in the era different from the basic-ultrabasic rocks in the Dabie complex belt, but also showed the main element geochemical information that is inconsistent with the basic intrusive body in the Dabie complex belt.