Petrology 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 phase diagrams. Sedimentary petrology is, on the other hand, commonly taught together with stratigraphy because it deals with the processes that form sedimentary rock. Lithology was once approximately synonymous with petrography, but in current usage, lithology focuses on macroscopic hand-sample or outcrop-scale
What You Get Is What You See What You Get Is What You See "What You Get Is What You See" is a song by recording artist Tina Turner from her album "Break Every Rule" (1986). The song was written by the Terry Britten and Graham Lyle team and was notably different from the three previous singles that they had written for Turner, "What's Love Got to Do with It", "We Don't Need Another Hero" and "Two People", as it was an up-tempo country-tinged rock track featuring Eric Clapton on guitars. Tina Turner said in an interview that "What You Get Is What You See" is her