IN recent years more and more attention has been paid to the Devonian of the northern belt of Western Qinling because some large-scale or very large-scale fine-disseminated gold ores have been found. Accordingly, the paleogeographical environments of the Devonian have become a very important project of concern to sedimentologists. Presently there are two kinds of different opinions on the Devonian sedimentary environments. In the first opinon they were consid- IN recent years more and more attention has been paid to the Devonian of the northern belt of Western Qinling because some large-scale or very large-scale fine-disseminated gold ores have been found. very important project of concern to sedimentologists. Presently there are two kinds of different opinions on the opinions of the Devonian sedimentary environments. In the first opinon they were consid-