Sentences with phrase «recent volcanism»

There is also some unconfirmed evidence of recent volcanism on Mercury, and radar observations of Mercury's north pole show evidence of water ice in the protected shadows of some craters.

Suzanne Smrekar of NASA's Jet Propulsion Laboratory in Pasadena, California, and colleagues found signs of relatively recent volcanism by measuring the infrared «glow» of solidified lava in three regions in its southern hemisphere.

Not exact matches

«It is true that there are other factors (such as volcanism, the changes in the orbit and the axis of the Earth, the solar cycle), but numerous scientific studies indicate that most of the global warming in recent decades is due to the large concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxide and others) mainly emitted due to human activity.»

So if frost rings are indicative of large explosive volcanism in recent centuries, is it that the ice cores may be misdated in the 1st millennium?

In fact, it is possible to have some frost rings without any evidence of explosive volcanism, presumably occurring due to extremes in local weather, but, as shown above, they do seem to record large volcanic eruptions in recent times very well indeed.

It is true that there are other factors (such as volcanism, the changes in the orbit and the axis of the Earth, the solar cycle), but numerous scientific studies indicate that most of the global warming in recent decades it is due to the large concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxide and others) mainly emitted due to human activity.

Previous maps were nowhere near these numbers because recent technological innovations have made geothermal development possible «in areas with little or no tectonic activity or volcanism.»