magmas

The Dolly Varden area is recognized as a classic eastern Great Basin district with base and precious metals associated with upper Paleozoic sediments intruded by Cretaceous auriferous magmas, which is a similar geological setting to the Battle Mountain Fortitude skarn gold type deposit in east central Nevada.

unknown title 2011

"They're cracks, that's how magmas gets to the surface ... and where they hit the surface, that's where you get a volcano."

Wade Norris: Rejoice! Ice Free Arctic Summers Within a Decade! 2009

It is not enough to claim that different magmas could mix to produce a certain result - it must also be noted that the ratios of radiometric isotopes that would be produced by such a scenario are not found in nature pp.435-6.

Archive 2009-04-01 James F. McGrath 2009

"They're cracks, that's how magmas gets to the surface ... and where they hit the surface, that's where you get a volcano."

Wade Norris: Climate Change: Whole Lot of Shaking Going On ... 2009

It is not enough to claim that different magmas could mix to produce a certain result - it must also be noted that the ratios of radiometric isotopes that would be produced by such a scenario are not found in nature pp.435-6.

Review of Young and Stearley, The Bible, Rocks and Time James F. McGrath 2009

Dacite and rhyolite magmas with low concentrations of dissolved gases can erupt as lava flows, producing little or no ash.

volcanic ash hazards and ways to minimize them 2009

The results imply that the region of the lunar interior that melted to make the magmas contained about the same amount as in the Earth's depleted upper mantle, which is way more than a smidgeon.

Water on the Moon: What Does it Mean? | Universe Today 2009

Interaction with water can cause magmas that would normally erupt lava flows to explode into ash particles, or cause normally explosive eruptions into more energetic eruptions.

volcanic ash hazards and ways to minimize them 2009

They concluded that the lunar magmas contained about 745 parts per million of water, similar to the amount in magmas produced at mid-ocean ridges on Earth.

Water on the Moon: What Does it Mean? | Universe Today 2009

Geologically this assemblage of unusual forms of contact metamorphism with simultaneously intruded acidic and basic magmas is unique in the British Tertiary Volcanic province.

St Kilda (Hirta) National Nature Reserve, United Kingdom 2008