Igneous petrology most common application of stratigraphic dating on volcanic rocks. In petrology the mineral clinopyroxene is used for temperature and pressure calculations of the magma that produced igneous rock containing this mineral. Clinopyroxene thermobarometry is one of several geothermobarometers. Two things make this method especially useful: first, clinopyroxene is a common phenocryst in igneous rocks easy to identify; and secondly, the crystallization of the jadeite component of clinopyroxene implies a growth in molar volume being thus a good indicator of pressure. Most contemporary ground breaking in igneous petrology has been published in prestigious American and British scientific journals of worldwide circulation
What Is Life of "What Is Life" on his 2005 tribute CD "Something for George". "What Is Life" was performed live at George Fest 2014 by "Weird Al" Yankovic. The recording is available on YouTube. The following musicians are believed to have played on "What Is Life": What Is Life "What Is Life" is a song by the English musician George Harrison, released on his 1970 triple album "All Things Must Pass". In many countries, it was issued as the second single from the album, in February 1971, becoming a top-ten hit in the United States, Canada and elsewhere, and topping singles charts