不同赋存形式H2映震特征及机理分析

doi:10.12196/j.issn.1000-3274.2024.03.010

Abstract

Abstract: Both dissolved H₂ in the Urumqi 04 spring water and the H₂ in the soil of the Aksu fault belong to the A-type monitoring points of Xinjiang earthquake monitoring, prediction, and evaluation. This paper takes the two as research objects, and analyzes the dynamic variation characteristics of H₂ concentration in different occurrence forms. The R-value scoring method and Molchan chart method were used to test the earthquake-reflecting efficiency of H₂ concentration and to extract abnormal indexes. The mechanism of H₂ reflecting earthquakes in different occurrence forms is discussed and analyzed. The conclusions are as follows: The concentration of dissolved H₂ in the Urumqi 04 spring water is less affected by meteorological factors, while the concentration of H₂ in the soil of the Aksu fault is influenced by both air pressure and air temperature, mainly by air temperature. The R-value scoring method and Molchan chart method showed that both monitoring points had good short-term prediction efficiency. The good short-term prediction performance of H₂ measurement is due to the stable physical and chemical properties of H₂ and its extremely fast migration speed.

Key words: Earthquake monitoring, H₂, Influencing factors, Earthquake reflecting efficiency, Abnormal index, Mechanism

CLC Number:

P315.7

LI Na, XIANG Yang, LI Xin-yong, WANG Cheng-guo. Reflecting Earthquake Characteristics and Mechanism Analysis of Different Occurrence Forms of H₂[J]. EARTHQUAKE, 2024, 44(3): 138-155.

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Reflecting Earthquake Characteristics and Mechanism Analysis of Different Occurrence Forms of H₂

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Reflecting Earthquake Characteristics and Mechanism Analysis of Different Occurrence Forms of H2

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Reflecting Earthquake Characteristics and Mechanism Analysis of Different Occurrence Forms of H₂