Patera Loki is the largest volcanic depression on the satellite of Jupiter Io , with a diameter of 250 km [1] . It is named for Loki - the god of cunning and deception in German-Scandinavian mythology [1] .
| Loki | |
|---|---|
| lat Loki patera | |
 Patera Loki in the image of the Voyager-1 spacecraft with lava flows and volcanic craters. | |
| Specifications | |
| Volcano shape | patera |
| Crater Diameter | 250,000 [1] m |
| Location | |
| Heavenly body | And about |
Measurements of the thermal radiation of the Loki pater, carried out by Voyager-1 , indicated the presence of sulfuric volcanism in it [2] .
To the southwest of the Loki patera is the Patera Ra , to the north the Patera Amaterasu , and to the northwest the .
Content
Building
Ionized lava lakes such as Patera Loki are hollows, partially filled with molten lava , covered with a thin hardened crust. These lakes directly communicate with the magma reservoir directly below them [3] . A review of the thermal radiation of several ionized lava lakes indicated the melting of rocks along the edge of the patera, resulting from the breakthrough of lava from under the crust of the lake at its edge. Further, since the solidified lava is denser than the molten lava from below, this crust can sink, increasing the thermal radiation of the volcano [4] . In places like Patera Loki, this can happen sporadically. During such events, Loki can radiate 10 times more heat than when its crust is stable [5] . During the eruption, a wave from a sinking crust spreads around the patera for about 1 km per day until the entire lake is crusted again. But as soon as a new crust cools and thickens so much that it can no longer swim on molten lava, a new eruption can begin [6] .
See also
- Volcanism on Io
- List of volcanoes Io
Notes
- ↑ 1 2 3 4 IO NOMENCLATURE unopened . lnfm1.sai.msu.su . Date of treatment October 19, 2007.
- ↑ 1 2 Hanel, R .; et al. Infrared Observations of the Jovian System from Voyager 1 (Eng.) // Science: journal. - 1979. - Vol. 204 , no. 4396 . - P. 972–976 . - DOI : 10.1126 / science.204.4396.972-a . - PMID 17800431 . (eng.)
- ↑ 1 2 Davies, A. Effective activity: landforms and thermal emission evolution // Volcanism on Io: A Comparison with Earth. - Cambridge University Press, 2007. - P. 142-52. - ISBN 0-521-85003-7 .
- ↑ 1 2 Matson, DL; et al. Io: Loki Patera as a magma sea (unknown) // J. Geophys. Res .. - 2006 .-- T. 111 . - S. E09002 . - DOI : 10.1029 / 2006JE002703 . - . (eng.)
- ↑ 1 2 Howell, RR; Lopes, RMC The nature of the volcanic activity at Loki: Insights from Galileo NIMS and PPR data (English) // Icarus: journal. - 2007. - Vol. 186 , no. 2 . - P. 448-461 . - DOI : 10.1016 / j.icarus.2006.09.022 . - . (eng.)
- ↑ 1 2 Rathbun, JA; JR Spencer. Loki, Io: New ground-based observations and a model describing the change from periodic overturn (Eng.) // Geophysical Research Letters : journal. - 2006. - Vol. 33 , no. 17 . - P. L17201 . - DOI : 10.1029 / 2006GL026844 . - . - arXiv : astro-ph / 0605240 . (eng.)