Mt etna carbon dating
Only recently, Creation magazine reported that ages up to 3.5 million years were obtained for lava flows that erupted in New Zealand from 1949 to 1975.2 One sobering example comes from the Grand Canyon in Arizona (see diagram, left).The Cardenas Basalt in the bottom of the canyon is an igneous rock layer suitable for radioisotope technology.When dated by the rubidium-strontium isochron method, the Cardenas Basalt yielded an age of 1.07 billion years.Most geologists consider this a ‘good’ date because it agrees with their evolutionary chronology.3 However, we know the date can’t be right, because it conflicts with Biblical chronology.Ferlito also points out a problem with another theory that suggests steam and gases might be released from magma inside the volcano before it can be expelled, causing the magma to fall back into the volcano.He notes that if this were the case, the volcano would inflate like a balloon.Etna behaves more like a giant hot spring than a volcano.
But, he notes, no one has been able to explain how so much of the gas can be released from Etna's proportionally small amount of magma release.Negative fluctuations in the gas flux would decrease the heat supply, promote viscosity and trigger eruptions.Moreover, this view of the volcanic system, subverting the common paradigm in which the gas emitted is associated with an equivalent amount of degassing magma, explains the phenomenon, known as the 'excess degassing problem', which affects volcanoes of basaltic and andesitic nature worldwide.He believes that the source of the steam is water pockets beneath or near the volcano, which are turned to steam and rise to the surface and are released—as happens with hot springs. DOI: 10.1016/j.earscirev.20 Abstract It is usually believed that volcanoes explicate their activity erupting magma, in which volatiles (mostly H2O) are dissolved in modest quantities.He cites recent research by others indicating that there may be much more water in the mantle than has been thought. At Mount Etna, the maximum H2O found in olivine melt inclusions is 3.5 wt%, which would correspond to a moles H2O/mol basalt ratio of 0.14.