同时，侵入岩浆的强烈活动也是本区构造环境由挤压向伸展转换的标志。
The intrusive magmatic activities were indicators of the tectonic setting which changed from compression to extension.
通过误差分析证明，将灰色关联分析与BP网络结合起来进行岩浆侵入范围的预测是可行的。
Through error analysis to prove grey related between analysis and BP network is combined to predict magmatic intrusion range is feasible.
通过对祁东煤矿勘探钻孔统计资料分析，研究了岩浆侵入煤层的主要特征。
Based on the statistics of exploratory boring data, the main characters are researched on magmatic intrusion in Qidong coalmine.
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