中文摘要：

滇东南建水地区二叠纪火山岩构造侵位于师宗一弥勒断裂带的西南段，以玄武岩、玄武安山岩和安山岩为主，夹有少量苦橄岩．地质、地球化学特征显示其形成于弧后盆地环境，与建水地区石炭纪枕状熔岩相配套．显示扬子陆块和华夏陆块在晚古生代发生了板块俯冲，形成岛弧火山岩，二叠纪时产生弧后引张，形成了弧后盆地．从晚古生代一早中生代，扬子陆块和华夏陆块之间可能存在一个复杂的沟弧盆体系．

英文摘要：

The Permian volcanic rocks from Jianshui area tectonically intruded into southwest part of Shizong-Mile fault belt. It is mainly comprised of basalts, basaltic andesites, andesites and a little picrites. Geological and geochemical characteristics show that they are formed in back-arc environment, matching Carboniferous pillow lava from Jianshui area. These imply that Yangtze block and Cathaysia block occurred plate-subduction in late Paleozoic forming the island-arc volcanic rocks, and that they produced back-arc extension in Permian, then formed back-arc basins. From late Paleozoic to early Mesozoic, there was a complex trench-arc-basin system between Yangtze and Cathaysia blocks.