Partly in response to what he saw as unsound and unscientific speculations by William Buckland and other practitioners of flood geology, Charles Lyell advocated the geological theory of vulcanism, earthquakes, erosion, and sedimentation rather than past catastrophic events.
22.
A NASA site I found says that over the past three billion years the core has probably cooled by a few hundred degrees . . . I'm not sure how many degrees it would need to reduce to eliminate vulcanism though.
23.
:Our article Future of the Earth says ( with a source ) that plate tectonics will cease on Earth about 1.1 billion years from now, so I'd imagine that vulcanism would cease in roughly the same time frame.
24.
The shape of the planets are to a large extent the result of their rotation, which causes equatorial bulge, and the competition of geologic processes such as the collision of plates and of vulcanism, resisted by the earth's gravity field.
25.
The shape of the Earth is to a large extent the result of its rotation, which causes its equatorial bulge, and the competition of geologic processes such as the collision of plates and of vulcanism, resisted by the Earth's gravity field.
26.
We couldn't count on avoiding vulcanism, earthquakes, continental subduction, rising sea levels, rock deposition, being ground to dust by a kilometer of ice in an ice age . . . one of those could bury our best efforts beyond the ability of any advanced race to find it.
27.
Various editions of material published about this region between 1980 and 2000 enable dungeon masters to set their games within a milieu of tropical volcanic islands redolent with themes of piracy, political intrigue, a popular resistance movement against an invader, nautical adventure, vulcanism and spelunking, exotic jungles, and tropical storms.
28.
That geological activity, Lunine said, might actually be vulcanism-- not the kind of volcanic activity like Earth's, with its eruptions and flows of searing hot lava-- but rather of water thrust up from the interior in the form of slush kept semiliquid by some kind of chemical antifreeze.
29.
The constituents of this outgassing, itself a consequence of vulcanism, would have been relatively heavier gaseous compounds like sulfur dioxide ( SO2 ), nitrogen and its various oxides ( NO, N2O, NO2, and N2O4 ), and carbon dioxide ( CO2 ), as well as moderately heavy compounds like water vapour, methane, and ammonia.
30.
As I said about my last report, concerning User : Vulcanism, it may just be paranoia on my part, but I'd rather apologize to "'Boobertoober "'afterward than miss the opportunity to nip a new SWN sock at an early moment, before things get out of hand . talk ) 09 : 47, 8 May 2010 ( UTC)
