Application of the Gravity Method to the Iron Ore Exploration in Eastern Hebei Province

To study the features of the gravity and magnetic anomalies and the prospects of iron deposits in eastern Hebei Province, we collected and arranged gravity data at scales of 1:50,000 and 1:200,000 and aeromagnetic data at scales of 1:25,000 and 1:200,000. Then, we separated the Bouguer gravity anomaly and the RTP aeromagnetic anomaly by the moving average method, and processed these two anomalies using the total horizontal gradient method and the vertical second derivative method. Combined with existing geological and geophysical research, we studied the features of the gravity and magnetic anomalies and investigated the corresponding relationship between the distribution of iron deposits and these anomalies, and then we predicted the favorable areas for iron deposits in eastern Hebei Province. The results showed that there is a good corresponding relationship between the distribution of iron deposits and the gravity and magnetic anomalies in eastern Hebei Province. Identification marks of the gravity and magnetic anomalies are determined to find the iron deposits in eastern Hebei Province, including the magnetic highs of the local magnetic anomaly and the vertical second derivative anomaly, the gravity highs of the local gravity anomaly and the vertical second derivative anomaly, the gradient belts of the Bouguer gravity anomaly, the high-value zones of the RTP aeromagnetic anomaly, and the extreme-value zones of the total horizontal gradient of the Bouguer gravity anomaly and the RTP aeromagnetic anomaly. There are 17 favorable areas for iron deposits in eastern Hebei Province, and these favorable areas display complex trends, including EW-trending, NNW-trending, and NEE-trending features.

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Gravity and magnetic field features and the prospects of iron deposits in the eastern Hebei province, China

Zhang

Haiyang

et al. 2022

Interpretation

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小型水平式高精度原子重力梯度仪的设计与实现

Wei Lü,

Zhang Xiaowei,

Xu Weihao

et al. 2023

激光与光电子学进展

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Application of the Gravity Method to the Iron Ore Exploration in Eastern Hebei Province

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Gravity and magnetic field features and the prospects of iron deposits in the eastern Hebei province, China

Gravity and magnetic field features and the prospects of iron deposits in the eastern Hebei province, China

小型水平式高精度原子重力梯度仪的设计与实现

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