弗朗西斯Ｊ .裴蒂庄 (ＦｒａｎｃｉｓＪ .Ｐｅｔｔｉｊｏｈｎ)是 2 0世纪最著名的沉积地质学家之一 ,几乎经历了整个 2 0世纪的风云变化。弗朗西斯时代的地质学在 2 0世纪初以野外工作为主 ,随着地球化学和地球物理学的不断引入 ,现已发展成为地球与行星科学。弗朗西斯在他的有 Francis J. Pettijohn, one of the most famous sedimentary geologists in the 20th century, has undergone almost the entire vicissitudes of the 20th century. In the early 1900s, the geology of the Francis era was mainly field work. With the continuous introduction of geochemistry and geophysics, it has now become Earth and Planetary Science. Francis has in him