The Shengong Movement in late Middle Proterozoic Era was strong and the superimposed fold of Junning Movement in late Qingbaikou Period was clear.
中元古代末的神功运动表现强烈， 青白口纪末的晋宁运动叠加褶皱明显。
Therefore, based on its isotopic characters, the "dolomitic marble" is more likely of volcanic carbonatite rock formed during middle Proterozoic era.
由此看来，“白云质大理岩”很可能是中元古代碳酸岩火山岩。
The data mentioned above lead to suggest that the granulites are the representatives of middle to lower crust formed round about late Proterozoic era.
上述资料表明本区的麻粒岩是形成于晚元古代前后的中下地壳产物。
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