Petrology and cycles and the use of thermodynamic data and experiments in order to better understand the origins of rocks. There are three branches of petrology, corresponding to the three types of rocks: igneous, metamorphic, and sedimentary, and another dealing with experimental techniques: Petrology Petrology (from the Greek πέτρος, "pétros", "rock" and λόγος, "lógos", "subject matter", see -logy) is the branch of geology that studies rocks and the conditions under which they form. Petrology has three subdivisions: igneous, metamorphic, and sedimentary petrology. Igneous and metamorphic petrology are commonly taught together because they both contain heavy use of chemistry, chemical methods, and
This Is What You Want... This Is What You Get in the film. The album was seen as a step down from the band's efforts. Pitchfork Media named the album "maligned but salvageable". Allmusic said the album as "the most tentative and least powerful of PiL's recordings." This Is What You Want... This Is What You Get This Is What You Want... This Is What You Get is a 1984 album by Public Image Ltd. It is the band's fourth official studio album and includes the single "Bad Life" and a re-recorded version of a "This Is Not a Love Song", which had been a No. 5 UK and international