Sentences with phrase «volcanic processes»

They could only be formed by volcanic processes, he says.

The major products of volcanic processes on the Moon are evident to Earth - bound observers in the form of the lunar maria.

So far, Steele has found no hint of martian biology — just trace amounts of organic molecules associated with volcanic processes.

The stunning implication is that submarine hydrothermal systems, fueled by the heat of volcanic processes, can support life in the absence of sunlight.

Their unusual idea — namely that tree rings give information about volcanic processes prior to eruptions — has now been published in the journal Scientific Reports.

«On planets like Mercury, early volcanism is much more dramatic, and [once] they cooled down there were no later volcanic processes to wipe out the early history.

Wet environments such as these combined with heat from volcanic processes, he added, may be prime locations to search for evidence of past life.

After discoveries including evidence for the existence of a saltwater ocean beneath the Jovian moon Europa's icy surface, extensive volcanic processes on the moon Io and a magnetic field generated by the moon Ganymede, Galileo plunged into Jupiter's atmosphere on September 21, 2003 to prevent an unwanted impact with Europa.

Roughly 60 % of the Earth's outer surface is composed of oceanic crust formed by volcanic processes at mid-ocean ridges.

USArray is providing a new insight and new data to address fundamental questions in earthquake physics, volcanic processes, core - mantle interactions, active deformation and tectonics, continental structure and evolution, geodynamics, and crustal fluids (magmatic, hydrothermal, and meteoric).

A «dark place» is dark merely because it is a place where darkness «germinates» and «evening» is a time of twilight merely because the «day» deteriorates owing to the stimulating effect of smuts on the volcanic processes.

Here we combine new and published geochronological data for tectonic - magmatic events recorded along the Greenland continental rifted margin to test the hypothesis that the origin of the main Cenozoic hyperthermals, including the PETM, is rooted in plate tectonic, metamorphic and volcanic processes in the North Atlantic region.