Igneous petrology Igneous petrology Igneous petrology is the study of igneous rocks—those that are formed from magma. As a branch of geology, igneous petrology is closely related to volcanology, tectonophysics, and petrology in general. The modern study of igneous rocks utilizes a number of techniques, some of them developed in the fields of chemistry, physics, or other earth sciences. Petrography, crystallography, and isotopic studies are common methods used in igneous petrology. The composition of igneous rocks and minerals can be determined via a variety of methods of varying ease, cost, and complexity. The simplest method is observation of hand samples with the
The Study of Touch jazz piano trio in the 21st century". Writing for The Guardian reviewer John Fordham called it "A session by a master improvising composer, and in ideal company". On All About Jazz, Mike Jurkovic noted "With boundless humor and flexible grace, pianist Django Bates offers us "The Study of Touch" the perfect piano trio music for the significant other who absolutely hates piano trio music" while Karl Ackermann said "it seems that in teaming with Eldh and Bruun, more than ten years back, Bates was simultaneously laying the groundwork for what has become his own version of a standards trio. In