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<p>The distribution of igneous rocks is closely related to hydrocarbon resources. This study utilized high-precision gravity, magnetic, and rock physical property data, employing gravity-magnetic field fusion technology and Euler deconvolution technology. The objective was to identify the distribution of igneous rocks in the China Seas and neighboring regions and investigate their relationships with petroliferous basins. Our results reveal that igneous rocks are widely scattered throughout the China Seas and neighboring regions, with the highest concentration in the northwest (NW) and the second highest concentration in the east-northeast (ENE). The largest-scale igneous rocks are those with a north-south (N-S) orientation, followed by those with northeast (NE), NW, and ENE orientations. The depths of igneous rocks within petroliferous basins typically range from 3 km to 9 km and are associated with hydrocarbon resource distributions characterized by deep oil and shallow gas. The proportions of igneous rocks in different types of basins exhibit varying correlations with the total hydrocarbon resources. In particular, the proportion of igneous rocks in rift-type basins in the China Seas exhibits a strong linear correlation with the total hydrocarbon resources. These research findings provide valuable guidance for studying the relationship between igneous rock distribution and petroliferous basins, offering insights that can inform future hydrocarbon exploration endeavors.</p>

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Study of the coupled relationship between igneous rock distribution and petroliferous basins: A case study of the China Seas and neighboring regions

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • Ruiyun Ma,
  • Wanyin Wang,
  • Xiaolin Ji,
  • Xingang Luo,
  • Tao He

摘要

The distribution of igneous rocks is closely related to hydrocarbon resources. This study utilized high-precision gravity, magnetic, and rock physical property data, employing gravity-magnetic field fusion technology and Euler deconvolution technology. The objective was to identify the distribution of igneous rocks in the China Seas and neighboring regions and investigate their relationships with petroliferous basins. Our results reveal that igneous rocks are widely scattered throughout the China Seas and neighboring regions, with the highest concentration in the northwest (NW) and the second highest concentration in the east-northeast (ENE). The largest-scale igneous rocks are those with a north-south (N-S) orientation, followed by those with northeast (NE), NW, and ENE orientations. The depths of igneous rocks within petroliferous basins typically range from 3 km to 9 km and are associated with hydrocarbon resource distributions characterized by deep oil and shallow gas. The proportions of igneous rocks in different types of basins exhibit varying correlations with the total hydrocarbon resources. In particular, the proportion of igneous rocks in rift-type basins in the China Seas exhibits a strong linear correlation with the total hydrocarbon resources. These research findings provide valuable guidance for studying the relationship between igneous rock distribution and petroliferous basins, offering insights that can inform future hydrocarbon exploration endeavors.