Experimental petrology Experimental petrology Experimental petrology is the field of research concerned with experimentally determining the physical and chemical behaviour of rocks and their constituents. Because there is no way to directly observe or measure deep earth processes, geochemists rely on experimental petrology to establish quantitative values and relationships in order to construct models of the deep earth. Experimental petrology can range from creating artificial magmas to measure crystallization behavior to observing recrystallization of minerals at varying P/T (Pressure/Temperature) conditions. Although methodology varies from experiment to experiment, in general the procedure involves evaluating a synthetic rock or magma (created from a blend
What Is Life All", "Mystical One" and "Pisces Fish". Joshua Greene, another religious academic, identifies the song as part of its parent album's "intimately detailed account of a spiritual journey": where "Awaiting on You All" shows Harrison "convinced of his union with God", "What Is Life" reveals him to be "uncertain that he deserved such divine favor". The song's second verse repeats what Inglis refers to as the "somewhat confusing promise" from Harrison (in lines 3 and 4) should his love be "rejected": Musically, Simon Leng describes "What Is Life" as "Motown-spiced" and a comparatively rare example of its composer's willingness to embrace