Features and Factors of Time Variations in Hydrogen Release at Lovozersky Rare-Metal Deposit (Kola Peninsula)     

V. A. Nivin  V. V. Pukha  A. V. Lovchikov  R. G. Rakhimov 《Geochemistry International》2018,56(7):688-701

The paper presents the results of a long–term (52 months) monitoring of molecular hydrogen release from the rocks of the Lovozero Massif. Observations are performed in an underground mine with the help of a portable highly sensitive gas analyzer developed at the National Research Nuclear University MEPhI. The strong variability (of 0.7 to 303 ppm) of the dynamics of the volume concentration of hydrogen (φH₂) is established. The main elements of the structure of the time series obtained consist of the fact that they have quite sustained and long intervals of low background concentrations, low–amplitude excesses of various durations, and short (usually high–amplitude) bursts. Seasonal and off–season periodic and other cyclic components in the structure of the series are identified. It is shown that the most important factors determining the dynamics of φH₂ are barogenic (variation in the atmospheric pressure) and technogenic (technological explosions). Possible mechanisms of gas release are considered.  相似文献   

Changes in the molecular hydrogen concentration in an underground mine (Lovozero rare-metal deposit,Kola Peninsula)     

V. A. Nivin  V. V. Pukha  A. V. Lovchikov  R. G. Rakhimov 《Doklady Earth Sciences》2016,471(2):1261-1264

Long-term monitoring yielded significant variations in the hydrogen volume concentration in an underground mine at the developed Lovozero rare-metal deposit of the nepheline–syenite massif in the Kola Peninsula. The deposit is characterized by emission of natural combustible gases. Basic structural elements of the time series obtained include relatively stable and long ranges of low background concentrations, low- and medium-amplitude rises of various duration, and short-term, commonly high-amplitude peaks. The range structure is characterized by a general decreasing trend, a low intensity random noise component, and seasonal and off-seasonal periodic and other cyclical components. Periodic circadian and semidiurnal harmonics are the most pronounced.  相似文献   

The Occurrence of a Catastrophic Rockburst at the Umbozero Mine in the Lovozero Massif,Central Part of the Kola Peninsula     

Adushkin  V. V.  Lovchikov  A. V.  Goev  A. G. 《Doklady Earth Sciences》2022,504(1):305-309

Doklady Earth Sciences - The parameters and peculiarities of a catastrophic rockburst that occurred at the Umbozero rare-metal mine located in the Lovozero massif (central Kola Peninsula), at a...  相似文献