The Journal of Petrology provides an international forum for the publication of high quality research in the broad field of igneous and metamorphic petrology and petrogenesis. Papers published cover a vast range of topics in areas such as major element trace element and isotope geochemistry and geochronology applied to petrogenesis; experimental petrology; processes of magma generation differentiation and emplacement; quantitative studies of rock-forming minerals and their paragenesis; regional studies of igneous and meta morphic rocks which contribute to the solution of fundamental petrological problems; theoretical modelling of petrogenetic processes.

《巖石學雜志》為在火成巖和變質巖石學和巖石成因的廣泛領域發表高質量研究提供了一個國際論壇。發表的論文涵蓋了許多領域的主題，如：主要元素微量元素和同位素地球化學和地質年代學在巖石成因中的應用；實驗巖石學；巖漿生成分化和侵位過程；成巖礦物及其共生體的定量研究；火成巖和巖漿的區域研究。有助于解決基本巖石學問題的變質巖石；巖石成因過程的理論模型。