Tolmachevsky active magmatic center (South Kamchatka) and its heat-power capacity as estimated by deep geophysical surveys
Abstract The structure of the Earth’s crust and upper mantle has been estimated by using geologic-geophysical cross-sections developed along two orthogonal geophysical profiles in the area of the Tolmachevsky active magmatic center. Comprehensive geophysical data have revealed the existence of an in...
| Published in: | IOP Conference Series: Earth and Environmental Science |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
IOP Publishing
2019
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1088/1755-1315/367/1/012015 https://iopscience.iop.org/article/10.1088/1755-1315/367/1/012015/pdf https://iopscience.iop.org/article/10.1088/1755-1315/367/1/012015 |
| Summary: | Abstract The structure of the Earth’s crust and upper mantle has been estimated by using geologic-geophysical cross-sections developed along two orthogonal geophysical profiles in the area of the Tolmachevsky active magmatic center. Comprehensive geophysical data have revealed the existence of an intrusive massif of predominantly intermediate-medium-felsic composition whose formation is accounted for by the presence of powerful heat flows and local melting sites. A swarm of small earthquakes reported in 1987-1988 was triggered by the advance of magma in the zone of the assumed eruptive fissure. Meteoric waters interact with the high-temperature media through the infiltration zone, which results in intense hydrothermal activity including the formation of steam-hydrothermal occurrences. The area of the proposed intrusive body is a promising zone for a high-temperature geothermal reservoir. |
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