第十二届国际沉积学会议于1986年8月24日至30日在澳大利亚的堪培拉市举行。提交大会的研究论文共达766篇,分为六个专题: A.海相沉积岩的沉积相、沉积模式和沉积环境研究; B.陆相沉积岩沉积作用、沉积环境研究; C.大地构造与沉积作用、成岩作用的关系; The 12th International Conference on Sedimentology was held in Canberra, Australia from August 24 to August 30, 1986. A total of 766 papers have been submitted to the conference and divided into six topics: A. Sedimentary facies, depositional models and sedimentary environment of marine sedimentary rocks; B. Sedimentary facies of sedimentary facies, sedimentary environment; C. Geotectonics and sedimentation Role, the relationship between diagenesis;