PIA00375: Io - Volcano Loki and Loki Patera


Io - Volcano Loki and Loki Patera

Caption:

The detailed structure near the volcano Loki is like nothing seen elsewhere on Io. When this Voyager 1 picture was taken, the main eruptive activity came from the lower left of the dark linear feature (perhaps a rift) in the center. Below is the "lava lake," a U-shaped dark area about 200 kilometers across. In this specially processed image, detail can be seen in the dark surface of this feature, possibly due to "icebergs" of solid sulfur in a liquid sulfur lake. The IRIS on Voyager 1 found this "lava lake" to be the hottest region on Io, with a temperature about 150 degrees Celsius higher than that of the surrounding area.

Cataloging Keywords:

Name Value Additional Values
Target Io
System Jupiter
Target Type Satellite
Mission Voyager
Instrument Host Cassini Orbiter Voyager 1
Host Type Orbiter Flyby Spacecraft
Instrument Imaging Science Subsystem (ISS)
Detector
Extra Keywords Grayscale, Infrared, Volcano
Acquisition Date
Release Date 1996-11-16
Date in Caption
Image Credit NASA/JPL
Source photojournal.jpl.nasa.gov/catalog/PIA00375
Identifier PIA00375