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胶东半岛栖霞蓬莱地区大数据金矿智能找矿预测

Intelligent mineral exploration prediction for gold deposits in Qixia−Penglai area of Jiaodong Peninsula using big data

  • 摘要: 在当前大数据时代背景下,人工智能正在快速演进并被广泛应用于地质领域。将地学大数据与人工智能方法相结合,进行矿产资源智能勘探预测,已成为世界范围内地质学者关注的重要前沿课题,具有显著的学术研究意义和实际应用价值。基于栖霞—蓬莱地区已完成的金矿勘查数据,采用窗口滑动法进行数据增强并构建训练数据集,利用二维卷积神经网络构建了智能矿产预测模型,通过匹配已知矿床窗口区域的特征和未知窗口区域的特征进行找矿预测。通过训练和试验,优选出效果最好的深度学习参数,实现了对栖霞—蓬莱地区的智能找矿预测,圈定的找矿预测区面积占总面积的11.37 %,并进一步确定了3处金矿找矿预测区。通过地质、地球物理、地球化学综合分析,找矿预测区与前人对该地区的认识一致,验证了模型预测的准确性和可靠性。

     

    Abstract: In the current era of big data, artificial intelligence is rapidly evolving and is widely used in the geological field. Combining big data of geosciences with artificial intelligence methods to carry out intelligent exploration and prediction of mineral resources has become an important frontier topic of concern to geologists around the world, which has significant academic research significance and practical application value. Based on the completed gold deposit exploration data in the Qixia−Penglai area, the window sliding method was used to enhance the data and construct the training data set. The two-dimensional convolutional neural network was used to construct the intelligent mineral prediction model, and the mineral exploration prediction was carried out by matching the characteristics of the known deposit window area and the characteristics of the unknown window area. Through training and experiments, the deep learning parameters with the best effect were optimized, and the intelligent mineral exploration prediction of the Qixia−Penglai area was realized. The delineated mineral exploration prediction area accounted for 11.37 % of the total area, and 3 gold deposit exploration prediction areas were further determined. Through the comprehensive analysis of geology, geophysics, and geochemistry, the exploration prediction area was consistent with the previous understanding of the area, which verified the accuracy and reliability of the model prediction.

     

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