On the plateau itself, the only color is near the summits of scattered cinder cones. The cones form around volcanic vents and are exposed to escaping volcanic gases in the course of an eruption. The gases react with the iron-rich lava cinders, essentially rusting the rocks. Sunset Crater in Arizona is named for the colorful end result of this process.
Shortwave infrared and near-infrared light (combined with green light in the lower, false-color image) highlight another aspect of Tolbachinsky Dol—the ongoing eruption of Tolbachik Volcano. Hot surfaces glow in shortwave infrared wavelengths. The active vent and lava flow are bright red, along with scattered lava “breakouts”at the front of the flow. High temperature surfaces in the scene also glow in near infrared light, revealing a lava pond in the active vent and fluid lava in the center of the lava flow.
These images were collected by the Advanced Land Imager (ALI) on the Earth Observing-1 (EO-1) satellite on June 6, 2013.
- Doubika, P., & Hill, B. E. (1999, July) Magmatic and hydromagmatic conduit development during the 1975 Tolbachik Eruption, Kamchatka, with implications for hazards assessment at Yucca Mountain, NV. Journal of Volcanology and Geothermal Research, 91 (1), 43–64.
- Kamchatka Volcanic Eruption Response Team (2013, June 6) Kamchatkan and Northern Kuriles Volcanic Activity. Accessed June 7, 2013.
- EO-1 - ALI
- INGV Sezione di Catania. Mount Etna Volcano, Sicily. Accessed June 7, 2013.
- Landsat 8 - OLI
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