New insights into El Chichón (Chiapas, Mexico) hydrothermal system from an aeromagnetic survey

Arreazola, Mario Fuentes; Núñez, Diana; Cupul–Velázquez, Ana M.; Núñez–Cornú, Francisco J.

doi:10.1016/j.jsames.2022.104169

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…The 400 km range flight carrier system (Figure 1) is an aircraft, which can operate within a maximum radius of 50 km, utilized in regions where it is challenging for people The 400 km range flight carrier system (Figure 1) is an aircraft, which can operate within a maximum radius of 50 km, utilized in regions where it is challenging for people to work and take up residence due to poor traffic conditions. It is not necessary to use standard airports or runways because the flight conditions are simple [25][26][27][28][29][30]; aside from the engine, the whole fuselage is primarily constructed of non-magnetic aviation aluminum with fabric wings. With a width of 2.5 m and a length of less than 4.0 m, the overall mass of the aircraft is less than 300 kg.…”

Section: Introductionmentioning

confidence: 99%

“…to work and take up residence due to poor traffic conditions. It is not necessary to us standard airports or runways because the flight conditions are simple [25][26][27][28][29][30]; aside from the engine, the whole fuselage is primarily constructed of non-magnetic aviation alum num with fabric wings. With a width of 2.5 m and a length of less than 4.0 m, the overa mass of the aircraft is less than 300 kg.…”

Section: Introductionmentioning

confidence: 99%

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Occurrence Characteristics of Lead–Zinc Mine and Low-Flying Aeromagnetic Prospecting in a Forested Region of Yichun City

Ji,

Qin,

et al. 2023

Minerals

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Understanding the characteristics of lead–zinc mine occurrences and mastering effective investigative techniques are paramount in modern ore prospecting. This research focuses on the forested region of Yichun city in China, with a specific emphasis on the strategic mineral resource of a lead–zinc mine. The study examines the distribution patterns of this mineral and employs advanced aeromagnetic exploration methods. Firstly, we analyzed the geological structure and features of the region by leveraging the latest high-precision aeromagnetic data collected using dynamic delta wing technology. This analysis was complemented by an assessment of the geological conditions of the research area, existing lead–zinc deposits, ground magnetic surveys, and verification studies. With the goal of establishing a meaningful correlation between aeromagnetic anomalies and lead–zinc deposits, we employed various potential field conversion techniques, including the reduction to the pole, vertical derivatives, upward continuation, and residual anomaly analysis techniques. Secondly, we investigated the metallogenic sites within this region and provided a comprehensive summary of the metallogenic circumstances and characteristics related to aeromagnetic prospecting. Thirdly, we employed human–computer interaction fitting inversion techniques to predict the potential for lead–zinc mine prospecting in areas exhibiting aeromagnetic anomalies. The study underscores the significance of high-amplitude and large-scale aeromagnetic anomalies in the study area. Furthermore, we examined the interplay between intrusive rocks, strata, and structural elements within the region to identify favorable conditions for lead–zinc mineralization. As a result of our analysis and discussions, a location was predicted where a lead–zinc mine may exist. The research methodology outlined in this article provides valuable insights for future lead–zinc mine exploration efforts in areas characterized by similar geological conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Occurrence Characteristics of Lead–Zinc Mine and Low-Flying Aeromagnetic Prospecting in a Forested Region of Yichun City

Ji,

Qin,

et al. 2023

Minerals

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El Chichón volcanic activity before and after the Mw8.2, 2017, Chiapas earthquake, México. Is El Chichón ready to erupt?

Legrand,

Perton,

López-Landa

et al. 2024

Bull Volcanol

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El Chichón volcano is the most active volcano in the state of Chiapas, México, and experienced its last Plinian eruption (VEI = 5) in 1982. To better assess its volcanic hazard, we studied its readiness to erupt by estimating changes in its internal stress state. These stress changes are difficult to calculate accurately, for example in the absence of focal mechanisms, but their existence can be indirectly revealed by the presence of volcano-tectonic earthquakes, for example following a large tectonic earthquake. We show that the seismic rate recorded at El Chichón volcano increased slightly after the large Mw8.2 Tehuantepec earthquake of 8 September 2017, Chiapas. However, this rate quickly returned to its background level after only 2 months, without any external volcanic manifestations, suggesting that the volcano is not ready to erupt in the near future. Previous observations of slight increases in the volcanic seismicity rate following large earthquakes have been explained by the presence of active hydrothermal systems in the vicinity of the volcano. We propose a similar explanation for El Chichón volcano which is known for its large hydrothermal system. Furthermore, the characteristics of the 2017 seismicity (spatial and magnitude distributions), and the horizontal-to-vertical spectral ratio also confirm the presence of high amounts of water near the volcano. We show that the 2017 volcano-tectonic seismicity is of hydrothermal rather than magmatic origin, in agreement with recent independent geochemical and aeromagnetic studies.

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New insights into El Chichón (Chiapas, Mexico) hydrothermal system from an aeromagnetic survey

Cited by 2 publications

References 22 publications

Occurrence Characteristics of Lead–Zinc Mine and Low-Flying Aeromagnetic Prospecting in a Forested Region of Yichun City

Occurrence Characteristics of Lead–Zinc Mine and Low-Flying Aeromagnetic Prospecting in a Forested Region of Yichun City

El Chichón volcanic activity before and after the Mw8.2, 2017, Chiapas earthquake, México. Is El Chichón ready to erupt?

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