Sentences with phrase «major volcanic region»

This Mars Global Surveyor image shows a martian crater that has been encroached by a field of dark, wind - blown sand dunes in the Syrtis Major volcanic region of the red planet.

Not exact matches

Indeed, the era between 65,000 and 25,000 years ago, toward the end of the Paleolithic, was a time of major volcanic eruptions, along with extremes of climate that included rapid shifts in temperature accompanied by alternately creeping and contracting glaciers across many regions of Eurasia.

There may be reason to strongly suspect that in any sufficiently complicated dynamical system model (such as climate) with stochastic parameters (e.g., exactly when and where a lightning strike starts a major wildfire or a major submarine earthquake perturbs ocean circulation in a region or a major volcanic eruption introduces stratospheric aerosols), it is almost certain that any given run of the model will have periods of significant deviation from the mean of multiple runs.

The Chilean Puyehue - Cordon Caulle volcanic region previously endured major eruptions in 1921 and 1922 and 1960, according to the U.S. - based Smithsonian Institution.