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<p>This paper presents an analysis of reduced-to-the-pole magnetic anomalies and gravimetric anomalies from northeast Mexico, specifically from areas of the Las Esperanzas, Las Coloradas, and Ocampo volcanic fields. The results show evidence of fissure volcanism in the region and its links with the basement sedimentary cover, tectonics, and the dynamics of intrusive magmatism. The spatial distribution of volcanic rocks is also related to subsurface geological structures and intrusive igneous rocks. The latter rocks are located in relatively shallow conditions beneath sedimentary and volcanic rocks. The three volcanic fields show an apparent relationship with the crystalline basement of the region, which is deeper at Las Esperanzas (reaching 8.120&#xa0;km) and shallower at Ocampo (reaching 0.228&#xa0;km). Several deep faults were identified, which may be the pathways for the igneous material rising to the surface. These structures may have also participated in the Laramide deformation of the sedimentary succession, controlling the igneous blocks’ movement and defining the basement relief.</p>

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Characteristics of Intraplate Volcanism in Northeast Mexico According to the Interpretation of Magnetic and Gravimetric Data

  • 期刊论文

  • 发表日期：

    2026年2月25日

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  • J. A. Batista-Rodríguez,
  • R. Y. Batista-Cruz,
  • Y. Almaguer-Carmenates,
  • F. J. López-Saucedo

摘要

This paper presents an analysis of reduced-to-the-pole magnetic anomalies and gravimetric anomalies from northeast Mexico, specifically from areas of the Las Esperanzas, Las Coloradas, and Ocampo volcanic fields. The results show evidence of fissure volcanism in the region and its links with the basement sedimentary cover, tectonics, and the dynamics of intrusive magmatism. The spatial distribution of volcanic rocks is also related to subsurface geological structures and intrusive igneous rocks. The latter rocks are located in relatively shallow conditions beneath sedimentary and volcanic rocks. The three volcanic fields show an apparent relationship with the crystalline basement of the region, which is deeper at Las Esperanzas (reaching 8.120 km) and shallower at Ocampo (reaching 0.228 km). Several deep faults were identified, which may be the pathways for the igneous material rising to the surface. These structures may have also participated in the Laramide deformation of the sedimentary succession, controlling the igneous blocks’ movement and defining the basement relief.