CWL

abluegirl:

Red Rock, Green Water by OxWearingSocks on Flickr.

The Emerald lakes are explosion craters on the massif at Mount Tongariro, a compound volcano on the North Island of New Zealand.

scinerds:

Shiprock

Shiprock gives the impression of having been volcanically thrust out from the sands of the Mancos desert, but this isn’t the case. Shiprock is indeed a volcano but of a class called a “diatreme”, having formed explosively from gas-charged magma escaping at great velocity. It possessed a crater at the surface called a “maar”, but erosion has long since removed it along with much of the sedimentary strata through which it erupted.

Volcanic Field Star Trails

A long exposure image captured the rotating sky above Karapinar volcanic field located in central Anatolia, Turkey.

Jupiter Moon Io’s Volcanoes Revealed in New Map

A new map of Jupiter’s oddly active moon Io has revealed the location of the moon’s many erupting volcanoes, raising as many questions about the enigmatic satellite as it answers.

The map is the most comprehensive ever compiled of Io’s hundreds of active volcanoes, researchers said. It also suggests a complex, multi-layer source for the moon’s huge stores of internal thermal energy, which may come as a surprise to some astronomers.

“The fascinating thing about the distribution of the heat flow is that it is not in keeping with the current preferred model of tidal heating of Io at relatively shallow depths,” co-author Ashley Davies, of NASA’s Jet Propulsion Laboratory in Pasadena, Calif., said in a statement. “Instead, the main thermal emission occurs about 40 degrees eastward of its expected positions.”