Characteristics of the Late Paleozoic Oceanic Basalts and Their Eruptive Environments in West Guangxi
桂西晚古生代海相玄武岩的特征及其形成环境

In west Guangxi, Late Paleozoic basic lava which were considered as the diabase, only scattered in Devonian and Lower Carbonaceous as interlayers with limited thickness. Recently, based on the field work we have recognized that those basic rocks actually were oceanic basalts intergrown with Late Paleozoic deep water deposits, rather than continental rift basalts. Geochemical analysis results of the basalts indicate that they were formed within oceanic plate. This supports our tentative assumption that the west Guangxi was the eastern part of the Paleo Tethys. It is necessary to reconsider the Late Paleozoic tectonic environments in Guangxi.