On the basis of lithological characters and electricity of volcanic rock, the volcanic rocks in Permian strata in Mid-Tarim area were divided into distinct units of lava cell and lava group.

• 摘要根据火山岩的岩性及电性特徵，对塔里木盆地中部（简称塔中）地区下二叠统火山岩地层进行了划分与对比。