摘要
以研究区内分布的“混杂堆积”形成的地貌环境组合关系特征、沉积物成因类型的沉积相组合模式以及混杂堆积物在介质搬运过程中形成的机制为理论基础,运用数理统计的逐步判别分析,结果表明:沉积体中碎屑显示的沉积组构优势是判别成因类型的有效手段,颗粒的AB面组构优势分析,比较精确地判别出研究地区的“混杂堆积”为山麓冲积类型泥石流堆积,它的形成机制是温带地区低山缓慢上升的相关沉积.
The Quaternary 'diamicts'distributed over piedmont belt in Dalian region was correlation sediments by virtue of slowing rise of adjacent faulted mountain area. The 'diamicts', characterized by certain landform environmental combination, belonged to deposits of alluvial type of debris-flows. To analyse fabric of debris-flows of alluvial type was important method studying their process. The Conclusion showed that AB- planes of paticles in deposits of debris-flows displayed preferred orientation.
出处
《辽宁师范大学学报（自然科学版）》
CAS
1992年第2期150-162,172,共14页
Journal of Liaoning Normal University:Natural Science Edition
基金
1986年省教委科研基金
关键词
地貌环境组合
混杂堆积
冲积型泥石流沉积
优势组构
landform enviroment combination
'diamicts'
deposit of debris-flow of alluvial type
breferred orientation
